How Do I Propagate Snapdragon Plants
Snapdragon plants can be propagated from cuttings, root division, and from seed. They cross-pollinate easily, so if you plant the seed collected from a parent snapdragon, the resulting child plant is not guaranteed to be true to type, and the color of the flowers might be completely different. If you want your new plants to look the same as their parent, you should stick to vegetative cuttings.
Propagating Snapdragons from Seed
You can collect snapdragon seeds by letting the flowers fade naturally instead of deadheading them. Remove the resulting seed pods and either plant them right away in the garden (they will survive the winter and germinate in the spring) or save them to start indoors in the spring. If you’re starting your seeds indoors, press them into a flat of moist growing material. Plant out the resulting seedlings when all chance of spring frost has passed.
How to Propagate a Snapdragon from Cuttings and Root Division
If you want to grow snapdragons from cuttings, take your cuttings about 6 weeks before the first fall frost. Dip the cuttings in a rooting hormone and sink them in moist, warm soil. To divide a snapdragon plant’s roots, simply dig up the entire plant in late summer. Divide the root mass into as many pieces as you want (making sure there is foliage attached to each) and plant each division in a one-gallon pot. Keep the pot indoors through the winter to allow roots to establish, and plant out the following spring when all risk of frost has passed.