Links to other cultivation/growing instructions:
Below is advice from my own experience growing this species:
King Sundew (Drosera regia):
The King Sundew (Drosera regia) is a most amazing carnivorous plant. Its natural habitat is a very small area located in South Africa. It has some of the largest leaves of the known Drosera species, they have been known to grow 24 inches (60cm) or more in length (under suitable conditions). The name is said to be derived from the resemblance of the plant to a crown when viewed from an angle parallel to the soil line.
King Sundews grow best in moist soil, even soaking wet soil for short periods is just fine. The pot can be set in a tray or dish of distilled or de-mineralized water with about a 1/2" deep layer of water, let the water level go down until it is just a film in the tray before renewing. NEVER USE TAP WATER or any water that contains minerals.
Though I have found that the precise level is not critical, here in the desert southwest I use an ultrasonic humidifier and keep the humidity level between 40-60% with good results.
The King Sundew can handle a wide variety of lighting conditions, though how the plant grows and its overall appearance can change dramatically under different light conditions. Low light levels engender a plant with greener, softer and larger growth. Using strong artificial light or moderately strong natural light produces a more colorful plant with somewhat smaller more upright leaves. I grow mine in bright fluorescent lights with a photoperiod of approximately 15 hours per day.
My King Sundews grow well year-round with a high of 85F during their light period (day) and down to 74F during their dark (night) period.
King Sundews regularly catch small flying insects; flies, moths, etc. when the plant is growing well.
I grow my King Sundews in various mixtures of peat moss, Sphagnum moss, silica sand, perlite, and pumice. I have found that they will do just fine in 100% peat moss, 100% Sphagnum moss, or mixtures of these two with sand, perlite, or pumice. To ensure a low mineral content I rinse all media ingredients thoroughly with distilled water prior to use.
Copyright August 2003 by W. Joseph Clemens