[header] How to grow catnip [title] Purchase catnip seeds. [step] Local home and garden stores carry both catnip seeds and small catnip plants ready for planting. Your local pet store might even carry seeds or plants. 
[substeps] If you want to save money, or if you know of someone who already is growing catnip, you could ask them for a plant or some seeds. [title] Plant seeds directly in the garden in spring.