shock can set your young plants back considerably.
To avoid this, pick a sunny afternoon to put your
plants outside and gradually expose them to the
cooler temperatures over a period of two weeks
or so. Move them from your greenhouse to a cold
frame, seed house, cloche, under a row cover,
or to a protected outdoor area. Uncover them a
little more each day, protecting them again each
night from the cold until they gradually adapt.
An application of Maxsea or SuperThrive (see Fertilizers)
will reduce transplant shock further and make
your starts stronger when transplanting. Also
be sure to protect your tender plants from slugs
and insects (see Pest Control).