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Bulbs: Spring Bulbs as Perennials -research in several zones

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Forum: BulbsReplies: 4, Views: 131
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chrisw99
Los Altos, CA
(Zone 9a)

July 25, 2009
10:47 PM

Post #6865509

Check out these articles as you try to decide which spring blooming bulbs to order!! I thought that this research done by Dr Bill Miller at Cornell Univ might be helpful. There are 2 links

1) http://www.hort.cornell.edu/miller/bulb/pubs.html

see pub number 3 on a study of 60 narcissus cultivars over 4 years in 3 US zones (5,6,and 7) --downloadable pdf. Started with 20 bulbs of each cultivar and counted the number of blooms produced in their 4th year. Compared sun vs part shade.

and pub number 4 on results of a study on 17 hyacinth cultivars in 3 US zones (5, 6, 7)-- downloadable pdf. Started with 20 blooms of each cultivar and counted the number of blooms produced in their 3rd year. Compared sun vs part shade.

there are other articles on the pubs page that might be interesting, also.

2) http://www.hort.cornell.edu/department/faculty/wmiller/combo...

results of a related study in Europe on combining tulips, narcissi and hyacinths with perennials. Note: See p 24 of the pdf for a list of the best bulbs studied in Italy where they had a climate much like the warm winter-dry summer parts of US zones 8-9. Some surprising (at least, they were to me in zone 9a) results for tulips.

Chris
--

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Other Bulbs Threads you might be interested in:

SubjectThread StarterRepliesLast Post
Growing Tuberose in CA SteveK 2 Aug 26, 2007 11:24 PM
hyacinth bulbs debi_z 12 Oct 31, 2007 7:48 AM
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