Carl A Deul, Northridge, California
Reprinted from the Southern California Newsletter
Although Malesian rhododendrons in the wild at times receive a great deal of water, this is a luxury that causes problems in cultivation.
Fresh rainwater is not only free of minerals, it is also free of destructive water molds. All water, if left standing, will acquire these organisms. Excessive watering of Malesians, that is, maintaining the growing medium in a constantly moist state, will encourage crown rot. I have lost rooted cuttings because of this, so it is wise to keep plants dry to prevent this problem.