February
2017

 

By
B. Rosie Lerner
 
Purdue
Extension
Consumer Horticulturist

 

Check out Rosie's book: Possum in the Pawpaw Tree

 

 

 

 

02-02-17

Question and Answer


Potted tulips sprouting, but no blooms

Foliage sprouting from tulip bulbs
Foilage sprouting from tulip bulbs

Photo credit: Rosie Lerner, Purdue Extension

Q. I purchased some tulip bulbs last fall that I didnít have a chance to plant. I potted them up and stored them in the basement. Now I have leaves, but no sign of flowers. What can I do to get them to bloom?

A. Most spring-flowering bulbs including tulips require a period of 8-16 weeks of chilling to initiate flower buds inside the bulb. If they donít receive that chilling period, the bulbs may sprout as youíve experienced, but will only grow foliage. Thereís not much you can do to get them to bloom now that theyíve already come up.

Should you find yourself with unplanted bulbs next year, pot them up about 3-4 months ahead of when you would like them to bloom. Moisten the soil and store between 35 and 45 F. Your basement may not be cold enough, but you also do not want them to freeze. After the required chilling period, the bulbs will begin to sprout and can then be moved to room temperature and greater light exposure. The bulbs should bloom within 2-3 weeks of sprouting.

Youíll find more information in Extension publication HO-19, Forcing Bulbs for Indoor Bloom, at
https://mdc.itap.purdue.edu/item.asp?item_number=HO-19-W .

 

Writer: B. Rosie Lerner
Editor: Cindie Gosnell,