Following the production of interspecific hybrids facilitated by a process known as embryo rescue, and extensive intercrossing, the three cultivars were selected. Bulbs are vegetatively propagated by tissue culture. Plants remain in bloom for several months. Plants reach 10-12 inches tall in pots. A 4-inch pot with one bulb per pot is recommended.
Bulbs are summer-dormant and require both heat and cold treatments before forcing.
Most bulbs will have been pre-treated before being sold. Provide medium to high light levels throughout the duration of the crop. About 2,500 footcandles is recommended. A typical fertilizer regimen, such as for potted chrysanthemums or other flowering plants, will suffice. Space pots on the bench so that 1-2 inches remains between the edges of the pots.