[pbs] Rhodophiala bifida
Jane McGary
janemcgary at earthlink.net
Fri Sep 7 12:10:00 EDT 2007
I can't grow Rhodophiala bifida here in northwestern Oregon, either. The
plants just dwindle away over several years, as so many plants from
summer-damp, hot climates do. I agree with Mary Sue that cold nights are
probably the culprit. A 35-degree F (about 24 degrees C) difference between
daytime and nighttime temperatures in midsummer is common where I live. The
drop is a function of low atmospheric humidity, proximity to the cold
Pacific coastal waters, and elevation gradients.
Amaryllis belladonna will grow here but not flower (it will flower in the
city of Portland, where the heat island effect raises night temperatures),
and Nerines are greenhouse subjects exclusively. However, I can grow
Zephyranthes and Habranthus in pots and flower them pretty well in summer.
So, southerners and easterners, enjoy your subtropical amaryllids, and we
will enjoy our Mediterranean and Californian bulbs!
Jane McGary
Northwestern Oregon, USA
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