Dutch iris requirements

Rodger Whitlock totototo@mail.pacificcoast.net
Tue, 16 Sep 2003 06:04:07 PDT
On 12 Sep 03 at 10:05, Diane Whitehead wrote:

> So far we have had success reported from Australia, Texas and New
> Mexico.
> A couple of nurseries in California say they will naturalize easily
> and multiply rapidly.  One of these is just north of San Francisco
> in grape country.
> Other successful places mentioned on the web: Las Vegas, Oklahoma.
> All these places seem to me to have high summer heat in common.
> Maybe  digging the bulbs up after flowering keeps them warmer than
> if they stayed in the ground where the soil insulates them.
> OK.  I'm going to experiment.  I'll get back to you in a couple of
> years.

Knowing something of your garden, Diane, I'd say the trouble *you* 
have is due to your sandy, lean soil and the shadiness of your 
garden. And don't forget that trees not only throw shade, but send 
out inquisitive roots that exhaust the soil for meters in all 

Rodger Whitlock
Victoria, British Columbia, Canada
"To co-work is human,
to cow-ork, bovine."

More information about the pbs mailing list