Harvest when the oldest flowers on a stem are 1-2 days before pollen show. Recently harvested corms treated with 20 ppm ethylene for 7 days prior to replanting promoted flowering of small corms and incresed the number of flowers produced per stem among other growth and development advantages.
Storage Specifics:
If pulsed with a 10% sucrose solution overnight, flowers can be stored at 33-35F for 2 weeks without significant loss in vaselife.
Tidbits:
From the Greek “tri” for three and “telos” for end, the parts of the flower are in threes.