Outsidepride Stinging Nettle Herb Seeds - 10000 Seeds Stinging nettle is a perennial medicinal herb growing in USDA Zones 3 - 10. This green herb plant can reach 24 - 36 inches in height. If you have come in to contact with this plant out in the woods, you won't forget the stinging nettle. They are covered with small hairs that release a painful, stinging chemical when they come into contact with skin. Plant 7 - 10 of these heirloom, non gmo nettle seeds to grow in your herb garden.