Perennial Hibiscus Propagation: Cuttings and Layering for 12-Inch Blooms

Cloning Hibiscus moscheutos for Giant Flowers

A perennial hibiscus with 12-inch blooms is likely 'Southern Belle' or similar cultivar. Seed won't come true—use vegetative propagation.

Softwood Cuttings (Late Spring/Early Summer)

1. 6-inch cuttings, strip lower leaves
2. Dip in rooting hormone
3. Stick 1 inch in warm, wet sand
4. High humidity, bottom heat
5. Rooting in 8 weeks

Layering (Also Spring)

1. Large pots under shrub
2. Wound branch, bury in pot
3. Weight with rock
4. 6-8 weeks to root
5. Sever and grow on

Giant-Bloom Varieties

'Southern Belle' (10+ inches) available from Park Seed, Summer Hill Seeds (example link). Your 12-inch blooms may be an exceptional selection worth cloning.

Timing

Too late for this season unless you have indoor lights. Plan for next spring.