Rose of Sharon
Hibiscus syriacus 'Krossa Regal'
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Shrub
Height
120 inches
Width
96 inches
Light
Full Sun, Partial Sun
Zones
5, 6, 7, 8, 9
Water
Moderate
Humidity
Moderate to high
Lifespan
Perennial
Native To
East Asia
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Deciduous shrub known for its large, showy flowers and strong growth habit. This cultivar is noted for its large, showy, lavender-blue flowers with a reddish-purple throat, blooming profusely from mid-summer to fall.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
We couldn't find this plant listed online right now.
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Planting
How to Grow
- Choose a sunny location with well-draining soil to plant the hibiscus.
- Tuck seeds or cuttings into moist soil, ensuring good contact for root development.
- Water regularly, keeping soil consistently moist but not waterlogged for 6 weeks.
- Fertilize monthly during the growing season with a balanced fertilizer.
- Prune lightly after flowering to shape the plant and encourage new growth.
- Mulch around the base to retain moisture and suppress weeds.
Pro Tip
Use organic compost to boost flowering and soil health for vibrant blooms.
Keep It Thriving
Care Guide
Do
- Water deeply during dry spells 🌱
- Prune after flowering to maintain shape
- Apply fertilizer monthly during active growth
- Mulch to conserve moisture
- Monitor for pests regularly
Don't
- Overwater to prevent root rot ❌
- Prune excessively during blooming period ❌
- Ignore pest signs ❌
- Plant in poorly drained soil ❌
- Use harsh chemicals without caution ❌
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Pest Check | ||||||||||||
| Prune |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Rose of Sharon questions
What zones can Rose of Sharon grow in?
Rose of Sharon is hardy in USDA Zones 5–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Rose of Sharon deer resistant?
Yes — Rose of Sharon is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Rose of Sharon bloom?
Rose of Sharon typically blooms in late summer through early fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Rose of Sharon need full sun?
Rose of Sharon does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Rose of Sharon drought tolerant?
Yes — once established (usually after the first full season), Rose of Sharon handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Hibiscus to compare
Midnight Marvel Swamp Hibiscus
Hibiscus moscheutos 'Midnight Marvel'
Rose of Sharon Hibiscus
Hibiscus syriacus 'Azurri Blue Satin'
Pink Chiffon Rose of Sharon
Hibiscus syriacus 'Pink Chiffon'
Blue Chiffon Rose of Sharon
Hibiscus syriacus 'Blue Chiffon'
Confederate Rose
Hibiscus paramutabilis
White Chiffon Hibiscus
Hibiscus syriacus 'White Chiffon'
Keep exploring
Explore the genus
Collections featuring this plant
Hardy in your zone?
Grow Rose of Sharon with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
