How cold is that "really cold"??? Thanks...![]()
here's an excerpt from Charles and Margaret Baker's culture sheet for paph armeniacum (sheets can be downloaded via subscription from http://www.orchidculture.com)
CLIMATE: Station #56748, Pao-Shan, China, Lat. 25.1N, Long. 99.2E, at 5554
ft. (1693 m). Temperatures are calculated for an elevation of 6550 ft.
(2000 m), resulting in probable extremes of 87F (30C) and 25F (-4C).
N/HEMISPHERE JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
F AVG MAX -- - 59 60 67 - 73 74 75 - 74 --74 73 -70 64 -- 60
F AVG MIN -- - 32 36 40 - 46 55 61 -62 -- 61 57 - 52 40 - 34
DIURNAL RANGE 27 24 27 27 19 14 12 13 16 18 24 26
RAIN/INCHES 1.2 1.4 1.8 1.4 4.2 5.4 6.1 5.7 3.9 3.9 1.1 0.3
HUMIDITY/% 65 66 61 60 68 75 82 83 79 79 72 71
BLOOM SEASON * * * *
DAYS CLR @ 7AM 23 15 17 14 9 3 1 1 5 7 19 20
DAYS CLR @ 1PM 19 9 13 6 3 0 0 1 2 5 16 19
RAIN/MM 30 36 46 36 107 137 155 145 99 99 28 8
C AVG MAX --- 15.0 15.6 19.4 22.8 23.3 24.0 23.4 23.3 22.8 21.1 17.8 15.6
C AVG MIN --- 0.0 2.1 4.3 7.6 12.6 16.0 16.5 16.0 13.7 11.0 4.3 1.0
DIURNAL RANGE 15.0 13.5 15.1 15.2 10.7 8.0 6.9 7.3 9.1 10.1 13.5 14.6
S/HEMISPHERE JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN
Cultural Recommendations:
LIGHT: 1800-2500 fc. Paphiopedilum armeniacum is healthiest with bright,
diffused light. It should not be exposed to direct sun, and strong air
movement should be provided at all times. Plants thrive when placed in the
strong, cool, moist airflow near the outlet of an evaporative cooler.
TEMPERATURES: Summer days average 75-75F (23-24C), and nights average
61-62F (16-17C), with a diurnal range of 12-14F (7-8C).
hope that helps!
I couldn't get the columns to line up for easy reading, but if you look carefully you can get the idea...