Avoid the use of frost-free freezers, which vary enormously in temperature during the frequent automatic defrosting cycles.
Sweet peppers, tomatoes, cucumbers, aubergines, celery, salads and globe artichokes can all be sown in a frost-free greenhouse.
We brought a new freezer for Christmas one of these new high tech Frost Free models.
Plant watermelon seeds directly into the garden after the frost free date for your region.
As with watermelons, you can either start the seeds indoors a few weeks before the last frost-free date, or plant seeds directly into the garden once the daytime temperatures hit 80 degrees consistently.