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Journal American Rhododendron Society

Current Editor:
Dr. Glen Jamieson ars.editor@gmail.com


Volume 50, Number 1
Winter 1996

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Winter That Was, Part II
Max Byrkit
Hagerstown, Maryland

In the Fall 1995 issue author Max Byrkit described the the winter of 1993-1994, with temperatures as low as -25°F, and its effect on his garden. Part II gives a detailed report on the effect on individual rhododendrons in his garden near Hagerstown, Maryland.

Rhododendron Plant Damage Key
Height: Given in feet.
Health prior to winter 1993-94: P = poor, F = fair, G = good, E = excellent.
Damage: 0 = none, 1 = minimal leaf damage above snow line, 2 = moderate leaf damage above snow line, 3 = severe leaf damage above snow line with dieback, 4 = dead plant.
Exposure: E = exposed, S = semi-exposed, P = protected.
Transplanted: <12 = under 12 months, 1 2-36 = 12 to 36 months, >36 = over 36 months.
Bloom: N = none, P = partial trusses above snowline, F = full trusses above snow line, ? = not recorded, NN = dead plant, B = budless.

Name Height Health Damage Exposure Transplant Bloom
above
snow
Name Height Health Damage Exposure Transplant Bloom
above
snow
('Atroflo' x ?) x ('Mary Belle' x Marcat Group*) 3.0 F 1 S <12 B 'Aronimink' 7.0 G 1 S >36 N
'Autumn Gold' x R. yakushimanum 3.5 G 3 S >36 N R. wardii var. wardii (formerly R. astrocalyx) (#2) 2.0 G 0 S >36 N
R. brachycarpum x 'Crest' 5.0 G 0 S <12 N 'Atroflo' 5.5 F 3 S >36 N
'Catalgla' x 'Sappho' 3.0 F 1 S >36 N 'Atrosanguineum' 6.0 G 1 S >36 N
'Direktör E. Hjelm' x R. yakushimanum (#2) 4.5 F 3 S >36 N R. augustinii (Gable) 3.5 G 3 S 12-36 P
'Fabia' x R. fortunei, white-flrd. 4.5 G 3 S >36 N 'Aunt Martha' 6.0 G 4 S <12 NN
('Goldfort' x 'Chlorops'*) x ('Hawk' x 'Idealist') 5.0 P 4 S <12 NN 'Aurora' (L. de Rothschild) 11.0 F 4 P >36 NN
'Goldfort' x 'Chlorops' 5.0 F 4 S >36 NN 'Avocet' 4.5 F 0 S >36 N
'Goldfort' x (R. yakushimanum x 'Harvest Moon') 7.5 F 2 S >36 N 'Babylon' (#1) 2.0 E 0 S >36 N
'Goldsworth Orange' x R. catawbiense, white-flrd. 3.0 F 4 S >12 NN 'Babylon' (#2) 5.0 G 4 S >36 NN
('Great Lakes' x 'Edmund de Rothschild') x 'Goldsworth Orange' 5.0 F 3 S <12 N 'Bali' 3.0 E 1 S >36 N
('Janet Blair' x 'Odee Wright') x ('Jalisco' x R. yakushimanum) 6.0 G 0 S >36 N 'Bangkok' 6.0 F 1 S >36 N
'Janet Blair' x R. strigillosum ? 5.0 G 0 S >36 N 'Barbara Hargrove'* 7.0 G 4 P >36 NN
R. maximum x 'Mary Garrison'*) (#1) 6.0 E 0 S >36 N 'Belle Heller' 9.0 F 2 P >36 N
R. maximum x 'Mary Garrison'*) (#2) 7.5 C 0 S >36 N 'Hachmann's Belona' 2.0 E 0 S <12 N
('Millard Kepner' x 'OIin O. Dobbs') pur. #1 6.0 G 2 S >36 N 'Ben Moseley' 6.0 E 1 P >36 N
('Millard Kepner' x 'Olin O. Dobbs') pur. #2 7.0 G 3 S >36 N 'Betsy Knuson'* 6.0 G 0 S <12 N
('Millard Kepner' x 'Olin O. Dobbs') pink 3.0 F 2 S <12 N 'Betty Arrington' sport 4.0 G 0 S >36 N
'Old Copper' x R. hyperythrum 3.5 G 2 S <12 N 'Betty Hume' 8.0 E 3 S >36 N
'Princess Elizabeth' x R. yakushimanum 5.0 G 1 S >36 N 'Mrs. Betty Robertson' 3.0 F 3 P >36 N
'Scintillation' x 'Hardy Giant' 5.0 F 2 S >36 N 'Big Savage' 6.0 F 0 S >36 N
R. simiarum x R. yakushimanum 1.5 F 3 S >36 N 'Blewbury' 3.5 E 0 S >36 N
(R. wardii x R. caloxanthum) x (R. fortunei x R. campylocarpum) 5.0 F 4 P >36 NN 'Blue Ensign' 5.5 G 1 S >36 N
R. yakushimanum x 'Purple Splendour' 3.0 G 0 S >36 N 'Blue Peter' 5.0 F 1 S >36 N
R. yakushimanum x R. sutchuenense 1.0 F 1 S <12 P 'Blue Ridge' 4.5 G 3 S 12-36 N
'Acclaim' 4.5 F 0 S >36 N 'Bob Bovee' 3.0 F 0 P >36 N
'Adele's Yellow' 2.0 E 0 S <12 N 'Bosutch' 6.5 G 3 P >36 N
R. adenopodum (#1) 5.5 F 4 S <12 NN 'Boule de Neige' 2.5 E 0 S >36 N
R. adenopodum (#2) 5.0 G 4 P >36 NN 'Boule de Neige' (#2) 5.0 G 0 S >36 N
R. adenopodum (#3) 7.0 G 1 S >36 N 'Boule de Rose' 5.0 G 1 S >36 N
'Advent' 3.0 G 3 S >36 N R. brachycarpum (#2) 6.0 F 0 S >36 N
'Albert Close' 8.5 E 0 S >36 N R. brachycarpum ssp. tigerstedtii (#1) <1.0 E 0 S <12 N
'Album Elegans' 6.0 F 1 P >36 N R. brachycarpum ssp. tigerstedtii (#2) 2.0 E 0 P >36 N
'Aloha' 1.5 G 0 S <12 N R. brachycarpum x ? 9.0 G 0 S >36 N
'America' 5.0 F 0 P >36 N 'Bravo!' 4.5 G 0 S >36 N
'Andorra' 2.0 F 0 S >36 N 'Brookville'* 9.0 G 0 S >36 N
'Anna H. Hall' x 'Fabia' 2.0 G 3 S >36 N 'Brown Eyes' 4.5 G 0 S >36 N
'Anna H. Hall' 8.0 G 0 S >36 N R. bureavii 3.0 G 1 E >3b N
'Mrs. Powell Glass' (syn. 'Anne Glass') 5.0 G 0 S >36 N 'Cadis' 9.0 F 2 S >36 N
R. maculiferum ssp. anwheiense (#1) 5.0 F 0 S >36 N              
R. maculiferum ssp. anwheiense (#2) 1.5 E 0 S >36 F              
                           
Name Height Health Damage Exposure Transplant Bloom
above
snow
Name Height Health Damage Exposure Transplant Bloom
above
snow
R. calophytum 3.5 G 3 P >36 N 'Ginny Gee' 1.0 G 0 S 12-36 F
'Calsap' 4.5 G 0 S 12-36 N 'Girard's Ruffled Red' 1.5 G 0 S 12-36 N
'Campy'* 10.0 G 0 P >36 N 'Glenolden'* 7.0 G 4 P >36 NN
'Canary Islands' 1.5 G 0 S <12 B 'Golden Star' 6.5 G 3 S >36 N
'Carlene' 5.0 G 0 S <12 N 'Goldfort' 7.5 G 1 S >36 N
'Caroline' 8.5 E 0 S >36 N 'Goldsworth Yellow' 6.0 P 1 P >36 N
'Caroline Cream'* 3.5 F 0 S >36 N 'Grotesque'* 7.0 G 2 S >36 N
R. minus Carolinianum Group 5.0 G 0 P >36 N 'Haida Gold' 1.5 G 1 S 12-36 B
'Casanova' 1.5 F 0 S >36 N Loderi Group (hardy #1) 3.0 G 0 S <12 N
'Catfortcampy'* 5.0 G 2 S >36 N Loderi Group (hardy #2) 4.5 G 1 S <12 N
R. catawbiense (RSF 77/620) 2.5 F 0 S <12 F 'Harold Amateis' 7.0 G 0 P >36 N
'Catawbiense Album' 7.0 G 0 S >36 F R. hemsleyanum 7.0 G 4 S >36 N
R. catawbiense f. insulare 4.5 G 0 S >36 F 'Henry R. Yates' 5.5 G 1 S >36 N
R. catawbiense, red-flrd. 3.0 F 0 S 12-36 F 'Henry's Red' 2.5 E 1 S <12 N
'Catawbiense Boursault' 10.0 E 0 S >36 N 'Hong Kong' 0.5 G 1 S >36 B
R. catawbiense, white-flrd. 9.0 G 0 P >36 F R. houlstonii 5.0 F 3 S >36 N
R. caucasicum 3.5 G 2 S >36 B R. houlstonii (type B) 2.5 F 2 S >36 N
R. caucasicum (Gable) 2.0 G 0 P >36 N R. houlstonii (type C) 2.0 G 2 S >36 N
R. caucasicum x R. fortunei ssp. discolor 5.0 G 4 S >36 NN R. hyperythrum 3.5 G 3 S >36 N
'Ceylon' 5.0 G 0 S 12-36 ? R. hyperythrum (best) 3.5 E 3 S >36 N
'Clara Raustein' 3.5 G 3 S >36 N 'Ice Cream' 5.0 G 0 S >36 N
'Conestoga' 6.0 G 0 S >36 N 'Ice Cube' (#2) 7.0 G 1 P >36 N
'Conewago' 6.5 G 0 S >36 P 'Ida Bradour' 7.5 G 3 S >36 N
'Conewego Improved' 6.0 G 0 S >36 N 'Irresistible Impulse'* 4.0 F 1 S <12 N
'Cosmopolitan' 3.0 F 3 S >36 N 'Jack Owen Yates' 7.0 F 1 S >36 N
'Crimson Pippin' <1.0 F 0 S <12 B 'James Burchett' 6.0 G 3 S >36 N
'Cunningham's White' 5.0 F 3 S >36 N 'Joe Paterno'* 3.0 F 3 S >36 N
'Cupcake' 1.0 G 1 S <12 N 'Joshua'* 2.0 F 1 S <12 B
R. dauricum (white #1) 3.0 G 0 S 12-36 P 'Judy Spillane' 2.0 E 0 S <12 N
R. dauricum (white #2) 5.0 F 0 S >36 P 'July Hope'* 3.5 F 1 S >36 N
R. dauricum (pink #1) 4.5 E 0 S >36 N 'Katarina'* 4.5 G 3 S <12 N
'David Gable' 6.0 G 0 S >36 N 'Kate Waterer' 5.0 F 2 P >36 N
Decatros Group (white flrd.) 5.0 G 4 S >36 NN 'Catharine van Tol' 8.0 F 2 P >36 N
R. decorum (Gable's hardy) 8.0 G 4 S >36 NN R. keiskei (#1) 3.0 F 3 S >36 N
'Dexter's Big Red'* 5.5 F 3 S >36 N 'Kentucky Cardinal' 6.0 F 1 S >36 N
'Dexter's Orchid'* 3.0 P 1 S >36 N R. keiskei (Gable form tall) 3.0 G 2 S >36 N
Dexter seedling x 'Ruby Bowman' 5.5 G 3 S 12-36 N R. keiskei (seedling) 2.5 G 2 S >36 N
'Dexter's Pink Glory' 5.0 G 3 S >36 N 'Kevin' 4.0 F 4 P >36 NN
'Dexter's Red Velvet'* 2.5 F 2 S 12-36 N 'Kimberly' 5.5 G 3 S >36 N
'Dexter's Champagne'* 2.5 G 2 S <12 B 'Lady of June' 5.5 G 1 S >36 B
'Diana' 1.0 G 0 S <12 B 'Lavender Girl' 10.0 G 0 P >36 N
'Direktör E. Hjelm' 8.0 G 4 P >36 NN 'Lee's Dark Purple' 6.0 G 0 S >36 N
'Directör E. Hjelm x R. yakushimanum 5.5 G 0 S <12 NN 'Lee's Dark Purple' (#2) 7.0 G 2 S >36 N
'Disca' (#1) 5.0 G 1 S >36 N 'Lodestar' 2.5 G 0 S >36 N
'Disca' (#2) 10.0 G 2 P >36 N 'Looking Glass' 1.0 G 0 S <12 B
'Dolly Madison' 12.0 G 1 P >36 N 'Lord Roberts' 2.5 F 1 S >36 N
'Donna Hardgrove' 6.5 F 4 S >36 NN 'Madame Carvalho' 6.0 F 1 S >36 N
'Dora Amateis' 3.0 F 2 S >36 N 'Madame Masson' 5.0 F 2 S >36 N
'Dorothy Russell' 9.0 G 3 S >36 N 'Magnificat' 1.5 G 0 S 12-36 N
'Douglas R. Stephens' 2.0 G 2 S <12 B R. makinoi 3.5 G 0 E <12 N
'Duke of San Lucar'* 6.0 F 4 P >36 NN 'Maletta' 3.0 F 3 S >36 N
'Earlene' 2.0 E 0 S >36 N Marcat Group* 2.5 F 3 P >36 N
'Ed's Red' 5.0 G 1 S >36 N 'Mary Fleming' 4.0 G 0 S >36 N
'Edmond Amateis' 8.0 E 0 S >36 N 'Mary Yates' 4.0 F 3 S 12-36 N
'Edward S. Rand' 9.0 G 1 P >36 N 'Mary Belle' x 'Crest' 2.5 F 3 S >36 N
'Elie' x 'Naomi Nautilus' 6.5 F 0 S 12-36 N 'Maxhaem Salmon' 5.0 F 2 P >36 N
'Endre Ostbo' 5.5 E 0 S >36 N 'Maxhaem Yellow'* 6.0 G 2 S >36 N
'Epoch' x 'Barto Blue' 3.0 G 2 S 12-36 N 'Maxecat' 9.0 G 0 S >36 N
'Fantastica' 2.0 G 0 S <12 N R. maximum 'Mount Mitchell' 6.0 G 0 S >36 ?
'Fastuosum Flore Pleno' 6.0 G 0 S >36 N R. maximum x R. yakushimanum 2.0 E 0 S >36 N
R. fletcherianum 3.0 G 3 P >36 N 'May Time' 6.0 F 1 S >36 N
'Flirt' 1.0 G 0 S <12 B 'Merley Cream' 9.0 G 0 S >36 N
R. fortunei ("4N Fort" polyploid) 4.0 G 4 P >36 NN R. degronianum (coll. Kumano Gorge) 3.5 G 0 P >36 N
'Francesca' 7.0 G 0 P >36 N R. degronianum var. brevifolium 2.5 E 0 P >36 N
'Freckles' 10.0 G 2 S >36 N R. micranthum (lepidote) 6.5 G 0 S >36 F
'Gigi' 8.0 E 3 S >36 N R. minus 4.0 G 0 P >36 F
                           
Name Height Health Damage Exposure Transplant Bloom
above
snow
Name Height Health Damage Exposure Transplant Bloom
above
snow
'Monaco' 2.0 G 0 S 12-36 N 'Shanghai' (#1) 3.0 F 0 P >36 N
'Montego' 2.0 G 1 S <12 N 'Shanghai' (#2) 7.0 P 2 S <12 N
'Moon Shot' 3.5 F 2 S >36 N 'Sir James' 6.0 G 0 S >36 N
'Mr. W.R. Coe' 5.0 G 2 S 12-36 N R. smirnowii 5.0 P 1 S >36 N
'Mrs. Furnival' x R. yakushimanum 1.0 G 0 S 12-36 N 'Solidarity' (#1) 1.5 E 0 S <12 B
'Mrs. Tom H. Lowinsky' 9.0 G 3 P >36 N 'Solidarity (#2) 2.5 E 2 S >36 N
'Mrs. Tom H. Lowinsky' 8.0 F 2 S >36 N 'Spellbinder' 4.5 G S >36 N
'Mrs. Furnival' 2.0 F 2 S >36 N 'Spring Dawn' 4.0 F 2 P >36 N
'Mrs. Powell Glass' 6.0 G 0 S <12 N 'Spring Frolic' 5.0 G 0 S >36 N
'Mrs. H.R. Yates'* 5.0 G 0 S >36 N 'Sumatra' 1.5 E 0 S <12 B
R. mucronulatum 7.0 G 0 P >36 N 'Summer Summit' 2.0 G 1 S <12 B
R. myrtifolium 5.5 G 2 S >36 N Tally Ho' x R. smirnowii 6.5 F 4 S >36 NN
'Nearing's Purple'* 5.0 G 0 P >36 N 'Tanyosho'* 2.0 E 0 S >36 N
'Nodding Bells'* 3.5 G 3 P >36 N 'Suzy Bell' 2.5 F 2 S >36 N
'Nova Zembla' 5.0 F 0 S >36 N 'Todmorden' 9.0 G 1 S >36 N
'Old Copper' 2.5 F 3 S >36 N 'Tom Everett' (#1) 4.0 F 0 S >36 N
'Old Port' 6.0 F 1 S >36 N 'Tom Everett' (#2) 5.5 G 3 S >36 N
'Olin O. Dobbs' 6.0 F 2 P >36 N 'Trinidad' 1.5 G 0 S 12-36 B
'Orange Marmalade' 2.5 F 3 S >36 B 'Trude Webster' 6.0 F 4 S >36 NN
PJM Group 6.0 E 0 S >36 N 'True Treasure'* 4.0 G 3 S >36 N
'Parker's Pink' (#1) 6.0 G 3 S >36 N R. vernicosum aff. Rock 18139 5.0 G 3 S >36 N
'Parker's Pink' (#2) 7.0 F 3 P >36 N R. vernicosum x 'Hardy Giant' 5.5 G 0 S <12 N
'Parsons loriosum' (plant #2) 8.0 G 0 S >36 N 'Vernus' 1.5 G 0 P 12-36 N
'Parsons loriosum' (plant #1) 9.0 G 1 P >36 N 'Vineland Fragrance' 4.5 G 0 S >36 N
'Party Pink' 3.0 G 0 S >36 N Vossburg C-33 5 F 0 S >36 N
'Peaches and Cream' (Gable)* 4.5 E 0 S 12-36 N 'Vulcan's Flame' 4.0 F 3 S >36 N
'Percy Wiseman' 2.0 F   S <12 N R. wardii var. wardii 6.0 F 3 S >36 N
'Peter Alan'* 2.5 G 0 S <12 N 'Warwick'* 7.0 G 2 S >36 N
'Pink Flair' 3.5 G 0 P >36 N 'Wheatley' 6.0 G 0 S 12-36 N
'Pioneer' 7.0 E 1 S >36 N 'Wheatley' 8.0 G 0 S >36 N
'Pleasant Bay Fragrance'* 2.0 G 0 S 12-36 B 'Willowcrest'* 2.0 G 0 S 12-36 N
'Popeye'* 3.0 F 2 S >36 N 'Laetevirens' 4.0 E 0 P <12 N
'President Lincoln' 8.0 G 0 S >36 N 'Wynterset White' 2.0 G 3 E <12 N
'Princess Elizabeth' 2.5 P 3 S >36 N 'Winterthur Pink'* 7.0 G 3 P >36 N
R. pseudochrysanthum (#2) 3.5 G 4 P >36 NN 'Wyandanch Pink' 8.5 E 0 S >36 N
R. pseudochrysanthum (Greer) 3.0 E 3 S 12-36 N 'Wyanokie' 5.0 E 0 S >36 N
'Purple Lace' 7.0 F 2 P >36 N R. yakushimanum (#1) 3.5 E 2 S <12 N
'Purpureum Grandiflorum' 10.0 E 0 S >36 N R. yakushimanum (#2) 1.5 E 0 S <12 N
'Queen Anne's' 3.0 G 0 S >36 N 'Yaku Prince' 3.0 G 0 S >36 N
'Raspberry Sundae'* 4.0 G 3 S >36 N 'Yaku Prince' (#2) 6.0 G 0 S >36 N
'Ravels' 7.5 G 1 S >36 N 'Yaku Princess' 3.5 G 0 S >36 N
'Red Head' (Gable) 2.0 F 3 P >36 N 'Yaku Queen' 3.5 G 0 S >36 N
'Rio' 3.0 E 0 S >36 N R. yakushimanum (Exbury #1) 3.0 G 2 S >36 N
'Robert Allison' 9.0 F 2 P >36 N R. yakushimanum (Exbury #2) 3.0 E 0 P >36 N
'Rochelle' 10.0 G 2 S >36 N R. yakushimanum 'Mist Maiden' 5.0 E 0 S >36 N
'Roseum Elegans' 2.0 E 0 S <12 N R. yakushimanum 'Angel'* 5.5 G 1 P >36 N
'Roseum Superbum' 11.0 G 0 P >36 N R. yakushimanum 'Angel' x R. makinoi 1.5 E 0 S 12-36 N
'Roseum Two'* 2.0 G 1 E <12 N R. yakushimanum 'Ken Janeck' 6.0 E 0 P >36 N
'Royal Pink' 2.5 F 2 S >36 N R. yakushimanum x R. bureavii (#1) 6.0 G 0 S >36 N
R. rubiginosum 5.0 F 3 S >36 N R. yakushimanum x R. bureavii (#2) 3.0 E 0 P >36 N
''Sagamore Bayside' 6.0 F 2 S >36 N R. yakushimanum x R. elliottii 3.0 G 3 S >36 N
'Sammetglut' 2.5 F 2 S >36 N R. yakushimanum x 'Rose Splendour' 4.0 F 3 P >36 N
'Scarlet Romance' 2.0 G 1 S 12-36 N R. yakushimanum x R. simiarum (#2) 2.5 G 3 S >36 N
'Scintillation' (Mehlquist) 2.0 F 0 0 <12 B 'Yates' Best' 2.5 F 0 P >36 N
'Scintillation' 2.5 F 1 S >36 N 'Yates' Red' 3.5 F 1 S <12 B
'Sefton' 2.5 G 2 S >36 N 'Yates' Second Best' 2.5 P 0 P >36 N
'Shaazam' 4.0 F 3 P >36 N 'Yellow Sunbeam'* 7.0 F 3 S <12 N
                           
              * Name is not registered.            


Volume 50, Number 1
Winter 1996

DLA Ejournal Home | JARS Home | Table of Contents for this issue | Search JARS and other ejournals