American Rhododendron Society Plant Registry
The following rhododendron and azalea names, submitted through the North American registrar, were approved and added to the International Rhododendron Register prior to November 1, 1994 by the Royal Horticultural Society, International Registration Authority for the genus
Rhododendron
.
Color numbers refer to the RHS Colour Chart unless noted otherwise. Accompanying color names are taken from
A Contribution toward Standardization of Color Names in Horticulture
, R D Huse and K L Kelly, edited by D H Voss (ARS, 1984). Species names are those used by the RHS, based upon the recent Edinburgh revision of the genus. Equivalent former and present names are listed in
An Alphabetical Checklist of Rhododendron Species
(RHS, 1981), and in
The Rhododendron Handbook
(RHS, 1980).
Parents of a plant are reported in the conventional order: (seed parent x pollen parent). Abbreviations are used where appropriate: H = hybridized by, G = grown to first flower by, R = raised by, S = selected by, N = named by, I = introduced by, REG = registered by; dates are enclosed in parentheses immediately following the activity.
Synonyms are names used for a particular clone prior to registration, but unacceptable because of conflict with recommendations of the
International Code of Nomenclature for Cultivated Plants - 1980
, or because the name was previously registered for a different clone.
'Aunt Jim': Evergreen azalea. ('Corsage', open pollinated). Seed collected (late 1970s), G (1981), N, and REG (1994): William L Clagett, Derwood, MD; I (1994): White's Nursery, Damascus, MD. Fls 2-3/truss, broadly funnel-shaped, 2" wide x 1.8" long, with 5 smooth-edged lobes, deep purplish pink (68A) in bud, opening blush white with moderate purplish pink (65A) markings at lobe tips and adjacent to midveins, sparse (65A) spotting near base of dorsal lobe. Calyx c 0.3", light green. Truss 2.75" wide x 2". Lvs held 2 years, narrowly elliptic, flat, acute (apex), cuneate (base), 1.4" x 0.5", glossy, moderate olive green (146A) above, hairless. Petiole hairy. Shrub upright, dense growth habit, very floriferous, 3' high x 2' wide 14 years from seed. Plant and bud hardy to at least -15F. Mid May.
'Ben Morrison': Evergreen azalea. (Unknown]). H (pre-1951): Benjamin Yoe Morrison, then Takoma Park, MD; R: USDA PI Station, Glenn Dale, MD; I (1968): Orville L Freeman, US Secretary of Agriculture, at first B Y Morrison Memorial Lecture sponsored by USDA Agricultural Research Station; N (c l968) and REG (1994): Dr John L Creech, now Hendersonville, NC. Fls single, open funnel-shaped, 2.75" across x 2.1" long, with 5 slightly wavy-edged lobes, deep yellowish pink (39B) speckled with deep red (185A) on upper lobe and portions of adjacent lobes, and with irregular white margins on all lobes. Calyx 5-lobed, 0.3", green, hairy. Spring leaves elliptic, flat, acute (apex), cuneate (base),1.75" x 1", with discrete colorless hairs on blade (above and below), on midveins and at margins. Petiole hairy. Shrub spreading, dense twiggy growth habit, very floriferous, 2.5' high x 5' wide c l5 years from cutting. Plant and bud hardy to at least 0F. Mid May (central NJ).
'Big Charlie': Elepidote. (Derived from catawbiense and fortunei ). Seed from F W Schumacher (c l965); G, N, I (1994), and REG (1994): Dr W L Tolstead, Elkins, WV. Fls 14/conical truss, broadly funnel-campanulate, 3" across x 2.1" long, of heavy substance with 7 wavy-edged lobes, very fragrant, moderate to light purplish pink. Calyx c 0.1" long, light green. Truss 6.5" wide x 4.75" high. Lvs held 1 year, elliptic, flat, obtuse (apex), rounded (base), 5.5" x 2.6", dark green, hairless. Shrub upright, spreading, very floriferous, 20' high x 18' wide c 30 years from seed. Plant and bud hardy to at least -28F. Early May.
'Carolina Dilly': Lepidote. ( minus Carolinianum Group, pink-flowered x mucronulatum 'Cornell Pink'). H (1972), G (c l982), N, I (1994), and REG (1994): Dr W L Tolstead, Elkins, WV. Fls 7-8/conical truss, broadly funnel-campanulate, 1.1" across x 1.1" long, with 5 very wavy-edged lobes, deep purplish pink margins shading to light purplish pink center. Calyx c 0.l" long, green. Truss 1.1" wide x 2" high. Lvs held 1 year, elliptic, flat, acute (apex), cuneate (base), 2.75" x 1.2", dark green; scales visible on petiole only. Shrub very floriferous, 9' high x 5' wide 22 years from seed. Plant and bud hardy to at least -28F. Mid May.
'Delp's Showoff': Lepidote. ['Epoch' x ('Achiever' x pemakoense Patulum Group)]. H (1985), G, and REG (1994): Weldon E Delp; N: Ginny Delp, Harrisville, PA. Fls 8/multiple-bud truss, open funnel-shaped, 1.75" across x 1.5" long, 5-lobed, shades of light and pale purple (75B-D) in bud, opening very pale purple (76D) with light greenish yellow (1C) dorsal spots and moderate red (181C) anthers. Calyx absent. Truss 4" wide. Leaves broadly acute (apex), cuneate (base), 2.5" x 1", scaly. Shrub 3.5' high x 3' wide 7 years from seed. Mid May. (Synonym: 'Showoff')
'Dick Redfield': Elepidote. ('Catalgla' x Gable's 'Caroline'). H (1962), G (1970), N, I, and REG (1994): Gustav A L Mehlquist, Storrs, CT. Fls 14-18/conical truss, open funnel-shaped, 2.4"-3.1" across x 2"-2.4" long, with 5 smooth-edged lobes, slightly fragrant, white tinted lavender at edge, and with bright green dots forming a flare on lower petal. Calyx minuscule, green. Truss 7.9"-8.7" wide x 6.7"-7.1" high. Lvs held 2.5-3 years, elliptic, flat, acute (apex), cuneate to rounded (base), 3.5"-5.1" x 1.4"-1.8", glossy, dark green, hairless. Shrub upright, spreading, open habit, moderately floriferous, 10' high x 8' wide 12 years from cutting. Plant and bud hardy to at least -25F. Early June.
'Doctor Frederick Serbin': Elepidote. (yellow-flrd fortunei hybrid from Greig x 'Goldsworth Orange'). H (1971): A Frederick Serbin, Bloomfield, CT; G (1976), N, I (1994), and REG (1994): Gustav A L Mehlquist, Storrs, CT. FIs 8-12/lax domed truss, open funnel-shaped, 3.1" across x 2.4" long, of heavy substance with 5 wavy-edged lobes, slightly fragrant, brilliant and light greenish yellow to pale yellow green (4A-D). Calyx yellow, 5-lobed, with 2 lobes c 0.6" long and 3 minuscule. Truss 6.3" wide x 4.7" high. Lvs held 2.5 years, elliptic, flat, broadly acute (apex), rounded (base), 3.0"-3.3" x 1.4"-2.0", glossy, dark green, hairless. Shrub upright, spreading, dense growth habit, moderately floriferous, 2.5' high x 2.6' wide 15 years from cutting. Plant hardy to at least -30F; buds, -20F. Mid May.
'Dogooder': Elepidote. ( yakushimanum x catawbiense x fortunei ). H (1961), G (1971), N, I (1994), and REG (1994): Dr W L Tolstead, Elkins, WV. Fls 12/truss, open funnel-campanulate, 1.6" across x 1.2" long, with 5 wavy-edged lobes, strong purplish red with dark blotch. Calyx c 0.1" long, light green. Truss 2.75" wide x 2" high. Lvs held 1 year, elliptic, flat, obtuse (apex), rounded (base), 5.1" x 2", dark green, hairless. Shrub spreading, very floriferous, 5' high x 8' wide 33 years from seed. Plant and bud hardy to at least -28F. Late May.
'Dorothy King': Evergreen azalea. ('La Roche' x indicum hybrid). H (1984), G (1988), N, and REG (1994): William L Clagett, Derwood, MD; I: White's Nursery, Damascus, MD. Fls 3/truss, open funnel-shaped, hose-in-hose, 2.6" wide x 2.2" long, with 5 wavy-edged lobes/whorl, strong to vivid purplish red (67A-B) with dark purple blotch on upper lobe and most of two adjacent lobes. Green calyx lacking. Truss 4" wide x 2.4". Lvs held 2 years, ovate to elliptic, concave, broadly acute (apex), rounded (base), 1.4" x 0.8", new growth mottled yellow and green with discrete rust colored hairs below, and with mottling persisting through most of growing season; mature lvs hairless, moderate olive green (147A) above. Shrub upright, spreading, very floriferous, 2.5' high x 2.5' wide 10 years from seed. Plant and bud hardy to at least -12F. Mid May. (Pollen parent has semi-dbl, hose-in-hose fls; mostly solid red with some red/white.)
'Dorothy Swift': Elepidote. ( smirnowii x yakushimanum ). H (1964), G (1969), N, I (1990), and REG (1994): Gustav A L Mehlquist, Storrs, CT. Fls 12-17/ball truss, broadly funnel-shaped, 2.2"-2.4" across x 1.6"-1.8" long, of heavy substance with 5 wavy-edged lobes, slightly fragrant, dark pink in bud, opening moderate, light, and pale purplish pink (65A-D), fading to white. Calyx green, minuscule. Truss 5.5" wide x 5.1" high. Lvs held 3-4 years, obovate, convex, acute (apex), cuneate (base), 2.6"-4.5" x 1.0"-1.6", glossy, dark green, and hairless above; thick felt-like hairs below, cream at first aging to brown. Petiole hairy. Shrub spreading, dense growth habit, very floriferous, 10' high x 7' wide 28 years from seed. Plant hardy to at least -30F; buds, -25F. Late May-early June.
'Double Gem': Elepidote. ('Queen Anne's' x 'Golden Star'). H (1981), G (1991), N, I, and REG (1994): August E Kehr, Hendersonville, NC. Fls fully double (no stamens), 12-14 /ball truss, open funnel-shaped, 3" across x 2.5" long, with 6 wavy-edged lobes, yellow in bud, opening cream with light yellow center. Calyx 0.2" long, light green. Truss 6" wide x 3" high. Lvs held 2-3 years, elliptic, flat, obtuse (apex), rounded (base), 5" x 2.5", glossy above, hairless. Petiole 0.75" long, green, hairy. Shrub very floriferous, 4' high x 2.5' wide 13 years from seed. Plant and bud hardy to at least 0°F. Early May.
'Festivity': Lepidote-Elepidote cross. (Derived from yunnanense and thomsonii ). H (1961): Cecil C Smith, Newberg, OR; G (1970), N, I (1994), and REG (1994): Dr W L Tolstead, Elkins, WV. Fls 18-20/conical truss, open funnel-shaped, 1.6" across x 1.2" long, of heavy substance with 5 wavy-edged lobes, light purplish pink with yellow blotch. Calyx c 0.1" long, light green. Truss 3.1" wide x 2" high. Lvs held 1 year, elliptic, flat, obtuse (apex), rounded (base), 5.1" x 2", dark green, hairless. Shrub upright, very floriferous, 9' high x 5' wide 33 years from seed. Plant and bud hardy to at least -28F. Late May.
'Fragrant Red': Elepidote. ('Loderi Venus' x 'The Honourable Jean Marie de Montague'). H (1969), G (1978), N, I, and REG (1994): Elsie M Watson, Kirkland, WA. Fls 14/ball truss, open funnel-shaped, 3.5" across x 2.5" long, with 5 very wavy-edged lobes, very fragrant, strong purplish red (58B) in bud, opening vivid purplish red (57B) with two deep red (53A) flares, 0.25" x 1", on upper dorsal lobe. Calyx dark greenish yellow (152D), less than 0.1" long. Truss 7" wide x 6" high. Lvs held 2 years, narrowly elliptic, flat, broadly acute (apex), cuneate (base), 5" x 1.5", glossy, moderate olive green (137A) above, hairless. Shrub upright, spreading, dense growth habit, very floriferous, 8' high x 6' wide 25 years from seed. Plant and bud hardy to at least 9&def;F. Mid April. (Synonym: 'Red Fragrance') [ Correct seed parent from (Venus Group x 'The Honourable Jean Marie de Montague' to 'Loderi Venus' x 'The Honourable Jean Marie de Montague') - mod. 08/04/14, ref. ]
'Helen Vieira': Elepidote. (Grierosplendour Group x white-flowered fortunei sdlg). H (1986), G (1992), N, I (1994), and REG (1994): Robert L Means, M.D., Winston-Salem, NC. Fls 15/domed truss, open funnel-shaped, 2.75" across x 1.75" long, with 5 smooth-edged lobes, moderate purplish pink (62B) with deep red (60A) throat. Calyx negligible. Truss 7" wide x 5" high. Lvs held 3 years, narrowly elliptic, convex, acute (apex), cuneate (base), 6" x 1.5", dull green above, hairless. Petiole hairy (new growth only). Shrub upright, spreading, dense growth habit, very floriferous, 4' high x 4.5' wide 8 years from seed. Plant hardy to at least -5°F; buds, 0°F. Late April-early May. (Awarded Blue Ribbon for Best Seedling at ARS National Convention 1994 flower show; Asheville, NC)
'Hannah Joy': Elepidote. ('Spanish Lady' x 'Redwax'). H (1984) and N: Morna Stockman; G (1993), I (1994), and REG (1994): Harold and Morna Stockman, Port Angeles, WA. Fls 7/lax truss, campanulate, 2.9" across x 2.9" long, with 5 smooth-edged lobes, strong red (53D) with strong red (53B) center. Calyx tapering from 1" to 0.5" long, colored as corolla. Truss 7" wide x 3"high. Lvs oblanceolate, convex, broadly acute (apex), cordate (base), 3"-4" x 1"-1.5", bullate, dull, dark green, hairless above, with thin coating of tan plastered hairs below, sparse on mature lvs. Shrub upright, dense growth habit, moderately floriferous, 2.5' high x 2.5' wide 9 years from seed. Plant and bud hardy to at least 0°F. Late May.
'Hillbilly': Evergreen azalea. (Parentage unknown). Seed purchased (c l965), G (1970), N, I (1994), and REG (1994): Dr W L Tolstead, Elkins, WV. Fls 3-5/truss, broadly funnel-campanulate, 1.2" across x 1" long, with 5 smooth-edged lobes, strong reddish purple with dark purple center. Calyx c 0.1" long, green. Truss 1.8" wide x 1.2" high. Lvs held 1 year, elliptic, flat, acute (apex), cuneate (base), 0.8"-1.2" x 0.6", medium green, hairy above and below. Petiole hairy. Shrub upright, rounded habit, very floriferous, 6' high x 5' wide 29 years from seed. Plant and bud hardy to at least -28F. Mid May.
'Hotrodder': Elepidote. {'Anne Hardgrove' x {[('America' x 'Blaze') x 'Red Brave'] No 2 x 'Delp's Cindy Lou']}}. H (1984): Thomas L Ring, M.D., Bellaire, OH; G, and REG (1994): Weldon E Delp; N: Ginny Delp, Harrisville, PA. Fls 12/truss, open funnel-shaped, 2.4" across x 2.3" long, 5-lobed, dark and deep red (183A, 53A) in bud, opening to blend of deep red (53A) and deep pink (48A) with dark red (183A) dorsal spots. Calyx absent. Truss 6.3" wide. Lvs broadly acute (apex), cuneate (base), 5" x 1.75", hairless. Shrub 2.5' high x 2.25' wide 8 years from seed. Early June.
'Inch': Evergreen azalea. ('Alexander' x indicum hybrid). H (1984), G (1987), N, and REG (1994): William L Clagett, Derwood, MD; I: White's Nursery, Damascus, MD. Fls 2-3/truss, broadly funnel-shaped, 2.4" wide x 2" long, with 5 wavy-edged lobes, white, sanded and striped with deep and strong purplish pink (67C-D); amount of variegation varies year to year from moderate to heavy. Calyx less than 0.2", light green. Truss 3.1" wide x 1.6". Lvs narrowly elliptic, acute (apex), cuneate (base), 1.2" x 0.3", moderate olive green (137B) above with discrete white hairs above and below. Shrub spreading, dense growth habit, moderately floriferous, 0.7' high x 1.8' wide 10 years from seed. Plant and bud hardy to at least -15F. Mid-late May.
'Ingrid Mehlquist': Elepidote. ('Besse Howells' x yakushimanum ). H (1967), G (1971), N, I (1993), and REG (1994): Gustav A L Mehlquist, Storrs, CT. Fls 20-22/ball truss, broadly funnel-shaped, 1.8"-2.1" across x 1.4"-1.6" long, with 5 very wavy-edged lobes, slightly fragrant, pink in bud, opening pale pink, maturing to pure white with burgundy dots in the form of a flare or blotch. Calyx light green, minuscule. Truss 5.5" wide x 3.0"-3.1" high. Lvs held 2.5-3 years, elliptic to slightly obovate, flat, broadly acute (apex), cuneate (base), 2.2"-3.7" x 1.0"-1.4", glossy, dark green, powdery above; puberulent below, hairs pale tan at first aging to rusty brown. Petiole hairy. Shrub spreading, dense growth habit, very floriferous, 3' high x 4.1' wide 25 years from seed. Plant hardy to at least -25F; buds, -20F. Late May.
'Jade Renee': Elepidote. ('Kammer's Ruffles' x 'Dianta'). H (1985) and N: Morna Stockman; G (1993), I (1994), and REG (1994): Harold and Morna Stockman, Port Angeles, WA. Fls 12-14/ball truss, broadly funnel-shaped, 3" across x 2" long, with 5 wavy-edged lobes, light purple (75A) with white dorsal blotch spotted greenish gold, the spots aging to red. Calyx less than 0.1", tannish green. Truss 5" wide x 5" high. Lvs oblanceolate, convex, emarginate (apex), oblique (base), 3.5"-4.25" x 1.25", dull, dark green, hairless. Shrub spreading, open habit, very floriferous, 2' high x 2.5' wide 8 years from seed. Plant and bud hardy to at least 0°F. Late May.
'John Trelawny': Elepidote. ('Jutland' x 'Fusilier'). H (1968): H L Larson, Tacoma, WA; G (cl978), N, and REG (1994): Evelyn Weesjes, Sidney, BC. Fls 10/flat truss, tubular funnel-shaped, 2.75" across x 2" long, with 5 smooth-edged lobes, vivid red (46C) with faint reddish spotting on upper lobes, aging to deep yellowish pink (46D). Calyx dark red, c 0.l" long. Truss 5.5" wide x 4" high. Lvs held 2 years, elliptic, convex, wavy margins, acute (apex), oblique (base), 5" x 1.75", dull, dark green, and powdery (yellow glandular remains) above, with discrete whitish hairs below on young lvs, aging to light reddish brown and becoming scarce at maturity. Petiole glandular. Shrub spreading, moderately floriferous, 5' high x 7' wide 25 years from seed. Plant hardy to at least 15F. Early June.
'Mandarin Lights': Deciduous azalea. ( calendulaceum x 'Orangeade'*). H (1967), G, N, I, and REG (1994): University of Minnesota Landscape Arboretum, Chanhassen, MN. Fls 7-10/ball truss, narrow tubular funnel-shaped, 2"-2.4" across x 1.6"-2" long, with 5(6-7) wavy-edged lobes (upper lobe more ruffled than the others), and with some fls having an additional small, very ruffled center "petal", slightly fragrant, strong reddish orange ( 2B) with darker veining, and with a strong orange (25B) blotch on upper lobe. Truss 4"-4.75" wide x 4"-4.75" high. Lvs elliptic, flat, acute (apex), cuneate (base), 4" x 1.6", moderate olive green (137B), hairless above, with discrete white hairs below. Shrub upright, rounded, open growth habit, very floriferous, 6.5' high x 6.5' wide 12 years from cutting. Plant and bud hardy to at least -32F. May 20 to June 10.
R. 'Mandarin Lights'
Photo courtesy of the University of Minnesota Agricultural Experiment Station |
'Mania': Evergreen azalea. ('Alexander' x indicum hybrid). H (1984), G (1988), N, and REG (1994): William L Clagett, Derwood, MD; I (1995): White's Nursery, Damascus, MD. Fls 2-3/truss, open funnel-shaped, 2.75" wide x 2.25" long, with 5 wavy-edged lobes, white with infrequent stripes of strong and light purple (77B-D). Calyx c 0.1", light green. Truss 4" wide x 1.6". Lvs held 2 years, lanceolate, flat, broadly acute (apex), cuneate (base), 1.1" x 0.4", glossy, moderate yellow green (137C) above with discrete white hairs above and below. Petiole hairy. Shrub spreading, creeping habit, moderately floriferous, 0.5' high x 1.9' wide 6 years from seed. Plant and bud hardy to at least -15F. Late May.
'Moonstruck': Elepidote. ('Keystone'* x 'Clark Adams'*). H (1978), G, and REG (1994): Weldon E Delp; N: Ginny Delp, Harrisville, PA. Fls 14/truss, broadly funnel-campanulate, 2.75" across x 2.25" long, with 5 slightly wavy-edged lobes, strong purplish red (60B-D) in bud, opening yellowish white (155D) edged strong purplish pink (60C) fading to white, and with strong yellow green (144A) throat and dorsal spots. Calyx 0.8" long, light yellow green (150D). Truss 6.3" wide. Lvs broadly acute (apex), rounded (base), 5" x 2", hairless. Shrub 3.5' high x 3' wide 14 years from seed. Early June.
'Mount Washington': Elepidote. (white-flowered catawbiense x open pollinated white-flowered catawbiense hybrid). H (1964), G (1970), N, and REG (1994): Gustav A L Mehlquist, Storrs, CT. Fls c l2/tall lax conical truss, open funnel-shaped, 3.75" across x 2.6" long, with 5-6 smooth-edged lobes, very fragrant, white. Calyx minuscule, green. Truss 5.9"-7.1" wide x 5.9"-7.9" high. Lvs held 2-2.5 years, oblanceolate, flat, broadly acute (apex), cuneate (base), 5.9"-6.7" x 2.0"-2.4", hairless. Shrub upright, spreading, open growth, tree-like habit, very floriferous, 12' high x 6' wide 29 years from seed. Plant and bud hardy to at least -30F. Mid May.
'Nellie Timmerman': Elepidote. ( yakushimanum , Larson No 6 x 'Mrs. Horace Fogg'). H (1968): H L Larson, Tacoma, WA; G (c l978), to be I (19%), and REG (1994): Evelyn Weesjes, Sidney, BC; N: Nick Weesjes. Fls 12/ball truss, open campanulate, 3.75" across x 2.5" long, of heavy substance with 5 wavy-edged lobes, strong purplish red (58C) in bud, opening light purplish pink (62C) with greenish-yellow spotting in throat, fading to near white; outside deeper shade of pink than (62C). Calyx yellowish, c 0.1" long. Truss 7" wide x 6.5" high. Lvs held 3 years, oblanceolate, flat, broadly acute (apex), cuneate (base), 6" x 1.75", very dark green, glossy, hairless above, with discrete light reddish brown hairs below. Petiole hairy. Shrub spreading, dense growth habit, moderately floriferous, 5' high x 5' wide 15years from cutting. Plant hardy to at least 15°F. Early May. ('Nellie Timmerman' is the No 2 selection from this Larson cross.)
'Pop's': Evergreen azalea. ('Alexander' x indicum hybrid). H (1984), G (1987), N, and REG (1994): William L Clagett, Derwood, MD; I (1995): White's Nursery, Damascus, MD. Fls 2-3/truss, broadly funnel-shaped, 2" wide x 1.5" long, with 5 wavy-edged lobes, white to purple in bud, opening white with vivid and light purple (81B-C) stripes and sectors (up to half of the flr), blotched ocher in purple areas and chartreuse in white areas, sparsely spotted; some self-colored vivid purple (81B) fls. Calyx less than 0.1", light green. Truss 2.6" wide x 1.9". Lvs lanceolate, flat, acute (apex), cuneate (base), 1" x 0.4", moderate olive green (146A) above with discrete white hairs above and below. Shrub spreading, very floriferous, 0.4' high x 1.25' wide 5 years from cutting. Plant and bud hardy to at least -15F. Late May.
'Red Fragrance': Synonym of 'Fragrant Red'.
'Red Hot Mamma': Elepidote. {'Anne Hardgrove' x {[('America' x 'Blaze') x 'Red Brave'] ' No 2 x 'Delp's Cindy Lou'}}. H (1984): Thomas L Ring, M.D., Bellaire, OH; G, and REG (1994): Weldon E Delp; N: Ginny Delp, Harrisville, PA. Fls 18/conical truss, open funnel-shaped, 2.1" across x 1.9" long, 5-lobed, dark red (183B) and vivid red (46B) in bud, opening vivid red (46B) edged deep red (185A). Calyx absent. Truss 4.75" wide. Lvs broadly acute (apex), cuneate (base), 3.5" x 1.5", hairless. Shrub 3' high x 3' wide 8 years from seed. Early June.
'Rosy Future': Elepidote. ( yakushimanum x 'Delp's Cindy Lou'). H (1984), G, and REG (1994): Weldon E Delp; N: Ginny Delp, Harrisville, PA. Fls 12/truss, broadly funnel-campanulate, 2.2" across x 2.2" long, with 5 slightly wavy-edged lobes, strong purplish red (60B-D) in bud, opening to blend of strong purplish red (63A-B) and strong purplish pink (63C) with light purplish pink (63D) throat and sparse pale yellow green (4D) dorsal spots. Calyx absent. Truss 5.5" wide. Lvs broadly acute (apex), cuneate (base), 4" x 1.5", with tan woolly hairs below. Shrub 3.5' high x 3.5' wide 8 years from seed. Early June.
'Sappholynn': Elepidote. ( catawbiense , white-flowered x 'Naomi Nautilus'). H (1967), G (cl977), N, I (1994), and REG (1994): Dr W L Tolstead, Elkins, WV. Fls 12-15/conical truss, open funnel-shaped, 1.2" across x 1.2" long, 5-lobed, white with dark maroon blotch. Calyx c 0.1" long, light green. Truss 2.75" wide x 2" high. Lvs held 1 year, narrowly elliptic, flat, obtuse (apex), rounded (base), 5.1" x 1.6", dark green, hairless. Shrub spreading, very floriferous, 9' high x 8' wide 27 years from seed. Plant and bud hardy to at least -28F. Late May.
'Sassy Style': Elepidote. ['Ginny's Delight'* x ('Stokes Bronze Wings' x 'Adele's Yellow')]. H (1984), G, and REG (1994): Weldon E Delp; N: Ginny Delp, Harrisville, PA. Fls 14/truss, broadly funnel-campanulate, 2" across x 1.7" long, with 5 wavy-edged lobes, strong purplish red (63A-B) and strong and light purplish pink (63C-D) in bud, opening light and pale purplish pink (63D,65C-D) with strong yellow green (144A-B) dorsal spotting and brilliant yellow green (154C) flare at base of dorsal lobe; reverse strong purplish red (63B). Calyx absent. Truss 4.75" wide. Lvs obtuse (apex), rounded (base), 4.5" x 2", hairless. Shrub 2.25' high x 2' wide 8 years from seed. Early June.
'Scarlet Romance': Elepidote. ('Vulcan' x 'Chocolate Soldier'*). H (1961), G (1966), N, I (1990), and REG (1994): Gustav A L Mehlquist, Storrs, CT. Fls 18-20/conical truss, open funnel-shaped, 3.1"-3.5" across x 2.0"-2.4" long, with 5 wavy-edged lobes, strong purplish red (61B) throughout. Calyx reddish, minuscule. Truss 7.5"-7.9" wide x 5.1"-5.9" high. Lvs held 2-3 years, elliptic, flat, acute (apex), cuneate (base), 4.3"-5.9" x 1.6"-2.4", glossy, dark green, hairless. Shrub upright, spreading, very floriferous, 6' high x 4' wide 12 years from cutting. Plant hardy to at least -25F; buds, -15F. May-June.
'Show-off: Name of a rhododendron clone registered 1962-3 by Arthur Wright; illegitimate synonym of 'Delp's Showoff'.
'Stark White': Elepidote. ( yakushimanum 'Koichiro Wada' x maximum ). H (1980), G, and REG (1994): Weldon E Delp; N: Ginny Delp, Harrisville, PA. Fls 16/truss, open funnel-shaped, 2.4" across x 2" long, 5-lobed, light and pale purplish pink (55C-D, 56D) in bud, opening white with brilliant yellow green (154C) dorsal spots. Calyx absent. Truss 5.5" wide. Lvs acute (apex), cuneate (base), 4.5" x 1.5", with cinnamon brown woolly hairs below. Shrub 2' high x 2' wide 12 years from seed. Early June.
'Steve Zimmerman': Elepidote. ('Hotei' x 'Crest'). H (1983): Steve McCulloch; G (1987): Pat McBride; described: Lynne Caton - all Briggs Nursery, Olympia, WA; N, I (1994), and REG (1994): Sandra Steffler, Lacey, WA. Fls 10-15/flat domed truss, open funnel-shaped, 2.5"-3" across x 1.5"-1.75" long, with 7 wavy-edged lobes, slightly fragrant, moderate red (180A) in bud, opening light greenish yellow (3D) at margins shading to brilliant yellow (7B) in throat; reverse light greenish yellow (6D). Calyx variable, 0.25"-1" long, brilliant greenish yellow (6C) edged moderate reddish orange (35B). Truss 4.5"-5.5" wide x 3"-4" high. Lvs held 2 years, narrowly elliptic/elliptic, flat, broadly acute (apex), rounded (base), 3.5"-4.75" x l"-2.25", dull moderate olive green (146A) above, hairless. Shrub moderately floriferous, 4' high x 5' wide 11 years from seed. Plant and bud hardy to at least -5°F (untested lower). Early May.
'Streaker': Lepidote. [('Achiever' x 'Gable's Pioneer') selfed]. H (1976), G, and REG (1994): Weldon E Delp; N: Ginny Delp, Harrisville, PA. Fls 6/truss, open funnel-shaped, 1.75" across x 1.1" long, 5-lobed, strong purplish red and deep and pale purplish pink (64C-D,65D) in bud, opening to blend of moderate, light, and pale purplish pink (65A-D), with grayish reddish orange (174D) anthers. Calyx absent. Truss 3" wide. Lvs broadly acute (apex), cuneate (base), 2.25" x 1.1", scaly. Shrub 3.25' high x 3' wide 16 years from seed. Mid May.
'Super Blend': Lepidote. ('Achiever' x 'Gable's Pioneer'). H (1974), G, and REG (1994): Weldon E Delp; N: Ginny Delp, Harrisville, PA. Fls 5/truss, broadly funnel-shaped, 2.4" across x 1.75" long, 5-lobed, deep and moderate purplish pink (66C-D) in bud, opening to blend of moderate, light, and pale purplish pink (65A-D,66D). Calyx absent. Truss 3.1" wide. Lvs broadly acute (apex), cuneate (base), 2.1" x 0.9", scaly. Shrub 5' high x 5' wide 19 years from seed. Mid-late May.
'Tabitha': Elepidote. [('Unknown Warrior' x 'Ole Olson') x strigillosum ]. H (1975), G (1980), N, and REG (1994): Elsie M Watson, Kirkland, WA. Fls 16/ball truss, open funnel-shaped, 2.5" across x 2" long, of heavy substance with 5 very wavy-edged lobes, strong red (53B) in bud, opening (53B) with 0.4" black nectar cup at inside base of corolla. Calyx moderate red (181A), c 0.1" long. Truss 5.5" wide x 5" high. Lvs held 2 years, narrowly elliptic, flat, acute (apex), cuneate (base), 5" x 1.5", dull, moderate yellow green (137C) above, with light olive (152A) glandular hairs below (young lvs only). Petiole hairy. Shrub spreading, dense growth habit, very floriferous, 5' high x 7' wide 18 years from seed. Plant and bud hardy to at least 9°F. Late February-early March.
'Tina's Whorled': Evergreen azalea. ('Koromo-shikibu' x indicum hybrid). H (1984), G (1988), N, and REG (1994): William L Clagett, Derwood, MD; I: White's Nursery, Damascus, MD. Corolla consists of 5 individual, smooth-edged, elliptic petals tapering to points at each end, 3.1" long x 0.6" wide at center, strong reddish purple (78B). Calyx 0.8" long, strong yellow green (144B). Lvs held 2 years, ovate, flat, broadly acute (apex), rounded (base), 2" x 0.8", moderate olive green (147) above, with discrete hairs below, white at first, aging to brown. Shrub upright, open growth habit, moderately floriferous, 1.8' high x 1.8' wide 10 years from seed. Plant hardy to at least -15F; buds, -12F. Mid-late May. (Pollen parent has semi-dbl, hose-in-hose fls; mostly solid red with some red/white.)
'Today and Tomorrow': Elepidote. ( smirnowii x yakushimanum ). H (1964), G (1972), N, I (1990), and REG (1994): Gustav A L Mehlquist, Storrs, CT. Fls 15-18/ball truss, broadly funnel-shaped, 2.4"-2.75" across x 1.4"-1.8" long, of heavy substance with 5 wavy-edged lobes, slightly fragrant, dark pink in bud, opening moderate, light, and pale purplish pink (65A-D), maturing to pure white. Calyx green, minuscule. Truss 7.1"-7.9" wide x 3.9"-4.7" high. Lvs held 3-4 years, lanceolate, convex, acute (apex), cuneate (base), 2.0"-4.0" x 0.6"-1.0", glossy, dark green, hairless above, with thick felt-like hairs below, cream at first aging to rusty brown. Petiole hairy. Shrub spreading, dense growth habit, very floriferous, 8' high x 10' wide 28 years from seed. Plant hardy to at least -30F; buds, -25F. Late May.
'White Glow': Elepidote. ( catawbiense , white-flowered x aberconwayi ). H (1975), G (c l985), N, I (1994), and REG (1994): Dr W L Tolstead, Elkins, WV. Fls 12-13/conical truss, open funnel-shaped, 2" across x 2" long, with 5 wavy-edged lobes, white with yellow-green blotch at base of dorsal lobe. Calyx vestigial. Truss 4.3"-4.7" wide x 2.75" high. Lvs held 1 year, elliptic, flat, obtuse (apex), rounded (base), 4.7'-5.5" x 2.75", medium green, hairless. Shrub very floriferous, 5' high x 5' wide 19 years from seed. Plant and bud hardy to at least -28F. Mid May.
' Yankee Clover': Elepidote. ('Tony's Gift'* x 'Maxhaem Salmon'). H (1976), G, and REG (1994): Weldon E Delp; N: Ginny Delp, Harrisville, PA. Fls 16/truss, broadly funnel-campanulate, 2.4" across x 2.1" long, with 5 wavy-edged lobes, moderate and strong purplish red and deep purplish pink (64A-D) in bud, opening pale purplish pink (65D) edged light reddish purple and moderate purplish pink (74C-D) with deep purplish red (61A) dorsal spots. Calyx absent. Truss 5.1" wide. Lvs broadly acute (apex), cuneate (base), 4" x 1.5", hairless. Shrub 4.75' high x 4.25' wide 16 years from seed. Early June.
* The following unregistered names appear as parents in the above listing:
'Chocolate Soldier':
Vossberg hybrid, ('Sefton' x 'H.W. Sargent')
'Clark Adams':
Pride introduction, (
catawbiense
x
haematodes
)
'Ginny's Delight':
Delp hybrid, ('Gosh Darn!' x 'Donna Hardgrove')
'Keystone':
Delp hybrid, ['Gosh Darn!' x ('Mrs. H.R. Yates' x
wardii
)]
'Orangeade':
Deciduous azalea (Knap Hill), parentage unknown
'Tony's Gift':
Shammarello hybrid, ('Catalgla' x 'Belle Heller')