Catnip Plant Growing. Catnip is a perennial that generally grows to 2 to 3 feet when planted outdoors. Additionally, rats and mice hate catnip and it may defer them from making forays into your.
Catnip is an herbaceous perennial. Additionally, rats and mice hate catnip and it may defer them from making forays into your. Seeds should sprout in 10 to 20 days and then you can plant them, indoors or outdoors.
Nepetalactone, the oil in catnip that gives the plant its minty scent, is about ten times more effective at repelling mosquitoes than deet.
Keep flats in a bright, warm location. You can also plant catnip from plant divisions or started plants. If your cat ingests catnip on a regular basis, it may deter fleas and ticks. Space them so that plants are 18 to 20.