The easiest way to propagate Hollyhocks is by seed, which can be sown directly in the ground in spring or started indoors, as they readily self-sow and are best propagated through seed collection from mature seed pods on the plant when they turn brown and dry out; simply harvest the seeds and sow them where you want new plants to grow; for more control, you can also start seeds indoors in pots before transplanting outdoors.
Key points about propagating Hollyhock with seeds:
Harvesting seeds: Wait until the seed pods on the plant turn brown and dry completely before collecting them.
Sowing seeds: Sow seeds directly in the ground in spring, or start them indoors in pots a few weeks before the last frost.
Seed depth: Plant seeds about ¼ inch deep in the soil.
Spacing: Space seedlings about 2 feet apart when transplanting outdoors.
Germination: Seeds typically germinate within a couple of weeks.
Other methods (less common):
Basal cuttings: In spring, you can try taking cuttings from the base of the plant, but this method is less reliable than seed propagation.