Growing Kit: (Growing Kit - Bulb/Pot/Soil) in Professional Growing Soil. Holland's finest strain produces more huge flowers per bulb than any other strain. The spectacular breathtaking beauty of the brilliant colors must be seen to be believed. Blooms over 8" across,for their exotic beauty and colorful, long lasting flowers. Large size bulbs should produce two huge stems each with 4-5 giant flowers per stem. Complete instructions are included with each order and directions for blooming care to insure repeat blooming in successive years. Best grown indoors. Not cold hardy. Bulb size 26-28 cm in circumference. The color of the pot and saucer may vary.