Clay vs plastic

Wed, 05 Oct 2011 18:09:17 PDT

You may have directed this message to me instead of to someone else. I have
made no comments about black or white containers. 


-----Original Message-----
From: []
On Behalf Of Alberto Castillo
Sent: Wednesday, October 05, 2011 6:02 PM
To: Pacific Bulb Society
Subject: Re: [pbs] Clay vs plastic

To Andrew:

                  Black is the best heat trapping color. Inside a greenhouse
in a cool/cold climate this will mean a lot of heat retained that would
speed up growth.

                  Likewise white pots are a lot cooler than black, green,
etc. ones, particularly the side that does not receive direct sunshine. I
use both black and white containers depemding on the temperature needs of
the plants. Of course this is more evident as pots increase in size.


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