6. Environmental requirements
Sandersonia grows best in warm soil
conditions (18‐24°C), with protection
from wind, heavy rain and harsh sun.
Research shows that excessive
temperature (30°C) will reduce growth and may distort flower stems.
Hot summer conditions will shorten the growing cycle (45 days) but
internodal length of the stem is reduced, resulting in short stems. A
minimum of 60 days to harvest is optimum.
If growing flowers in late Winter or early Spring then green housing is
essential to maintain soil temperatures above 16°C. As light and temperature
levels naturally increase during mid Summer, shading may be required. Avoid
extreme conditions which may cause stress, resulting in calloused and/or
stained tubers ‐ refer #27.