DEAR NEW FARM:
What is required for organic greenhouse production?
The standards for organic greenhouse production are the same
as for any type of organic agriculture, that is, if you have
a greenhouse that has been used to raise crops conventionally,
you must undergo a three-year transition process. It’s
much easier to start with a new greenhouse if you can afford
There are some special considerations with greenhouse production.
For instance, if you are growing in the ground, treated lumber
is a no-no; instead use a rot-resistant lumber such as red
cedar or rough-sawn red oak.
As with any type of organic farming, document everything
you do and triple check your materials, such as your potting
mix, with the Organic Materials Review Institute (OMRI) (www.omri.org).
The federal Organic Rule also requires that your seed source
is organic whenever possible, and your certifier will expect
that you have at least three documented attempts to try to
obtain organic seed before going with conventional.
us with comments, suggestions and questions.