Sternbergia and Zephyranthes

Jane McGary
Sun, 27 Oct 2013 11:55:23 PDT
I can't help with Kathleen's question about Zephyranthes, except to 
suggest that her home on the Pacific shore doesn't get enough summer 
heat (especially at night) for them to flower. Also, she may be 
misinterpreting their annual cycle, which is different from that of 
Mediterranean and Western American bulbs. I've given up on 
Zephyranthes because I also get mostly leaves. They did better when I 
had them in a solarium that stayed warm at night.

Sternbergia lutea, which is the species usually grown in gardens, 
also needs plenty of warmth while the buds are forming during the 
dormant stage, and does best with a dry summer although this is not a 
strict requirement. Mine flower lavishly in the warmer environment of 
the bulb house but only moderately in the sunny rock garden. They 
respond well to fertilizer, and would especially need this in 
Kathleen's sandy soil.

Jane McGary
Portland, Oregon, USA

  At 10:27 AM 10/27/2013, you wrote:
>I have some questions about growing Sternbergia and Zephyranthes. 
>I've grown both for years, the Sternbergia in the garden, and 
>Zephyranthes in pots in my cold frame. Some foliage appears each 
>fall, and seems to be healthy, but no flowers. Any idea what I 
>should be doing to encourage flowering in these species?
>Pacific NW Coast, mild winters, cool dry summers

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