Hardy gloxinia

Boyce Tankersley btankers@chicagobotanic.org
Tue, 31 Aug 2010 14:25:46 PDT
I am growing a species collected in China by the North American Rock
Garden Society. I live in Grayslake, Illinois, which is about half way
between Chicago and the Wisconsin border - USDA zone 5. Seeds were
donated to me by Jim Shields.

I can endorse the observation made by Ina. I had 2 or 3 seed lots
germinate and planted over a dozen seedlings in the fertile soils of my
vegetable garden. The dog chose that location to bask in the sun during
winter - none survived.  The veggie garden is 20' deep by 80' long. The
single remaining seedling in a seed flat was planted in a bed on the
east side of the house in soil amended with peat moss and every other
year top-dressed with powdered sulfur. Has come back for 6 years now.
Dog still wants to lie in this location in winter time but some chicken
wire encourages her to move aside. Theoretically, the roots may have
some insecticidal properties since the only other plant treated in this
fashion has been Thymus.

Boyce Tankersley
Director of Living Plant Documentation
Chicago Botanic Garden
1000 Lake Cook Road
Glencoe, IL 60022
tel: 847-835-6841
fax: 847-835-1635
email: btankers@chicagobotanic.org
> Is anyone else out there growing I. delavayi or any other species of
> genus in the garden? Be sure to let me know where you are. And if you
are in
> eastern North America and are able to keep them from year to year in
> garden, I would like to know what you are doing.

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