pbs Digest, Vol 4, Issue 4

Rodger Whitlock totototo@telus.net
Thu, 15 Jun 2017 09:31:15 PDT
On 06/15/2017 04:00 AM, pbs-request@lists.pacificbulbsociety.net wrote:

> I've tried growing serpentine-loving Calochortus bulbs in serpentine
> soil in pots, and the result was almost immediate death for the
> bulbs. The serpentine turns into a soggy mess and the bulbs rot
> almost immediately. I don't know how they survive this in the wild,
> but I suspect there are pores in the soil that collapse when the soil
> is moved into a pot. Also, the ground stays a lot cooler than soil in
> a pot, and I suspect temperature may encourage bad microbes.

Have you tried growing these in terra cotta (red clay) pots plunged up 
to their rims in a bed of sand?

By having the soil in the pot, the pot itself, the sand in the plunge 
bed, and the underlying soil all in capillary contact, excess moisture 
is quickly wicked away. [Or so I'd like to believe!]
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