How To Propagate Hardy Hibiscus: A Step-By-Step Guide

What Are Hardy Hibiscus?

Hardy hibiscus are a type of flowering perennial shrub that belong to the mallow family. They grow best in USDA zones 5-9 and prefer full sun or partial shade. They have large, showy single or double blossoms up to 8 inches across which come in shades of white, pink, red, lavender and purple. Hardy hibiscus can reach heights of 4-5 feet tall with an equal spread and bloom profusely during the peak summer months.

Propagating Hardy Hibiscus

Propagating hardy hibiscus is easy – all it takes is some patience! The two most common methods for propagating this plant are via stem cuttings or root division. Both methods allow you to increase your stock without buying new plants from a nursery. Here’s how:

Stem Cuttings

Take several 3-4 inch long cuttings from healthy stems on your existing hardy hibiscus plants (make sure they have at least one node). Remove any leaves from the bottom half of each cutting before planting them in well-draining potting mix or soil amended with compost (it should be moist but not soggy). Place the cuttings 2 inches apart so there’s room for them to spread out as they begin growing roots and shoots. Cover the tray with plastic wrap to help retain moisture until roots form (usually within 1-3 weeks), then remove it gradually over time so your baby plants get used to their new environment without being shocked by sudden changes in humidity & temperature levels. Once established, transplant young hardies into individual pots filled with quality potting mix and water regularly throughout their first year as they become more resistant to drought & heat than adult specimens do.

Root Division

Wait until fall when temperatures cool off enough that you can safely dig around established clumps of hardy hibiscuses without damaging the root systems too much – try using a sharp spade or fork instead of just your hands if necessary! Carefully loosen up soil around each crown before gently taking out entire runners connected by fleshy rhizomes; if there are no visible divisions use hand pruners/shears instead (just make sure not go too deep!). Replant sections 12-18 inches apart into prepped holes containing plenty of organic matter like compost mixed in for added nutrition & water retention capabilities; add slow release granular fertilizer over top once everything has been nicely settled down again after backfilling all holes evenly throughout area where these were transplanted.. Lastly, mulch generously afterwards which will also act as insulation against extreme temperatures plus provide vital nutrients needed during warm seasons!