Catnip Plant Growing Tips. Once harvested, pull off the leaves and dry them by spreading them in a single layer in a dry. Catnips tolerates both cold and heat;
Catnip grows best outdoors, but can be grown indoors if you place it by a window that gets at least six hours of full sun per day. In fact, growing catnip is a good idea, even if you don't have cats!catnip, nepeta cataria, is a delightful, soothing and medicinally beneficial herb for humans too! It and can do the same for humans.
Catnip is a perennial plant, and a member of the mint family.
Catnip plants should be planted 18 to 20 inches (45.5. Grow catnip in zones 3 to 9. The ideal is to start sowing in a second pot as soon as the first is placed at the disposal of your cat, so that it never remains without catnip. You’ll want to plant it in an area where your cats can roll in it without damaging neighboring plants.