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Plants / Rose of Sharon

Rose of Sharon

Hibiscus syriacus

Also known as: Shrub Althea, Hardy Hibiscus (shrub)

⚠ïļ Toxic to petsMalvaceaeEasy to propagate

A complete guide to growing and propagating Rose of Sharon: its care needs, how to take cuttings and root them, how long propagation takes, and how to fix the most common problems.

Rose of Sharon care at a glance

☀ïļ Light
Full sun to part shade; best bloom in full sun.
💧 Water
Water while establishing; moderately drought-tolerant once mature.
ðŸŠī Soil
Average, well-draining soil.
ðŸ’Ļ Humidity
Deciduous shrub hardy in zones 5-9.
ðŸū Toxicity
Toxic to dogs (ASPCA); this hibiscus causes vomiting, diarrhea, and anorexia. Keep pets from the flowers and foliage.

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How to propagate Rose of Sharon

Softwood cuttings

Difficulty: EasyTimeline: Roots in 4-6 weeks; pot on to grow out.
  1. Take 4-6 inch tip cuttings of soft growth in early summer.
  2. Strip the lower leaves and dip the base in rooting hormone.
  3. Insert into moist cutting mix and cover with a dome.
  4. Keep warm and bright; pot on once rooted.

Hardwood cuttings

Difficulty: EasyTimeline: Roots over winter; transplant the following spring.
  1. Take pencil-thick dormant cuttings in late fall.
  2. Insert two-thirds deep into a sheltered nursery bed.
  3. Leave over winter, keeping just moist.
  4. Transplant rooted cuttings in spring.

Common Rose of Sharon problems & fixes

Cuttings rot before they root

Too wet or no airflow. Use a free-draining mix, water sparingly, and vent the humidity cover daily.

Cuttings wilt after taking them

Normal at first — keep humidity high under a dome, out of direct sun, until roots form and perk them up.

Powdery mildew on leaves

Poor airflow and damp foliage. Space plants out, water at the base, and improve circulation.

Track your rose of sharon cuttings & propagation in SnipLog

Log when you took each cutting, set rooting reminders, and watch your propagation timeline — free on iPhone.

Get SnipLog →

Toxicity notes are a general guide based on ASPCA-style classifications — if a pet ingests any houseplant, contact your vet. Care needs vary with your home's conditions.