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market-farming - Re: Hardening off and transplanting

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  • From: Dave Bennett <dbennett AT micoks.net>
  • To: market farming <market-farming AT franklin.oit.unc.edu>
  • Subject: Re: Hardening off and transplanting
  • Date: Thu, 30 Mar 2000 09:18:19 -0600


Mike Steinberg wrote:
>
> Would like some feedback on "hardening off" of transplants growen in a
> greenhouse and when to transplant to the field. Here in coastal Northern
> California, a hard frost in no longer a reality. Is it really necessary to
> harden off tranplants and if so, for how many days prior to transplanting
> and for how many hours per day-evening or day time? Is the general rule of
> thumb to tranplant when two sets of true leaves(not cotyledons) a good one
> to follow?
>
> Mike
> Flying Frog Farm
> Sebastopol,CA
>

I'm not so sure that the temperature is the only concern. I am setting
mine plants outside in uncovered coldframes during the day for a few
days so they can get used to the wind (we have a lot of it here in
Eastern Kansas) without getting blown away directly. Also, the air they
will live in outside is different than the indoor environment. I then
bring them into the garage (cooler than they were used to in their
nursery) for the night to get them used to a deeper night->day
temperature swing.

--

Dave Bennett




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