Malvaceae
Rose of Sharon (Hibiscus syriacus)
Hibiscus syriacus
Plant in full sun for best flowering. Water deeply every 7 days when established; more during droughts. Drought-tolerant once established. No misting required. Prune lightly in late winter to encourage abundant summer blooms.
Every 7 days
Direct sun
-29° - 38°C
40% - 70%
Categories
What is Rose of Sharon?
Rose of Sharon (Hibiscus syriacus) is a easy-care plant from the Malvaceae family. Rose of Sharon (Hibiscus syriacus) is a deciduous flowering shrub native to East Asia, widely grown for its showy blooms in shades of white, pink, purple, red, and lavender. It blooms from midsummer through fall, bridging a gap when few other shrubs are in flower. It is the national flower of South...
Rose of Sharon grows up to 3.6m, spread of 300cm, watering every 7 days, -29°C – 38°C, 40–70% humidity. It is not suitable for indoor environments and safe for pets.
Unlike many tropical plants, Rose of Sharon tolerates watering mistakes. Best for beginners. Unlike many popular species, Rose of Sharon is safe to keep around pets.
How to Care for Rose of Sharon?
TLDR: Rose of Sharon needs Direct sun, watering every 7 days, and temperatures between -29-38°C with 40-70% humidity.
How Often Should You Water Rose of Sharon?
Water deeply every 7 days in summer. Established plants are drought-tolerant but bloom better with consistent watering during dry spells. Avoid overwatering as it can cause root rot.
How Much Light Does Rose of Sharon Need?
Requires full sun — at least 6 hours of direct sunlight daily. In partial shade, flowering is reduced and the plant becomes more prone to fungal diseases.
What Is the Best Soil for Rose of Sharon?
Prefers well-draining soil with a slightly acidic to neutral pH (6.0–7.5). Adapts to loamy, sandy, and even poor soils as long as drainage is good.
What Pot Should You Use for Rose of Sharon?
Large outdoor container or garden bed; needs good drainage. Terracotta pots work well for container growing.
Care Schedule
Fertilize
Every 30 days
What Is Rose of Sharon and Where Does It Come From?
Rose of Sharon (Hibiscus syriacus) is a deciduous flowering shrub native to East Asia, widely grown for its showy blooms in shades of white, pink, purple, red, and lavender. It blooms from midsummer through fall, bridging a gap when few other shrubs are in flower. It is the national flower of South Korea, known as Mugunghwa, symbolizing perseverance and eternal love.
How to Propagate Rose of Sharon?
Semi-hardwood cutting
Use clean, sharp pruners. Keep the medium moist but not waterlogged.
- 1 Take a 4-6 inch semi-hardwood cutting in early summer
- 2 Remove lower leaves, leaving 2-3 leaves at the tip
- 3 Apply rooting hormone to the cut end
- 4 Insert into well-draining moist rooting medium
- 5 Keep in a humid environment with indirect light until roots form
Materials needed:
Seed propagation
Cold stratification for 4-6 weeks improves germination rates.
- 1 Collect mature seeds in autumn
- 2 Store in a cool dry location until spring
- 3 Sow in light moist seed-starting mix at 20-25°C
- 4 Germination takes 2-4 weeks
- 5 Transplant seedlings after 8-10 weeks
Materials needed:
How Big Does Rose of Sharon Grow?
TLDR: Rose of Sharon can reach up to 3.6m tall with Medium growth rate.
Max height
3.6m
Spread
3.0m
Growth rate
Medium
Foliage
Deciduous
Plant Uses
Ornamental
Great for decoration
Medicinal Uses
- Flowers and leaves have traditional medicinal use in Asian medicine as antifungal and anti-inflammatory agents
Is your plant showing symptoms?
Click on the symptom to discover possible causes:
What Diseases Commonly Affect Rose of Sharon?
TLDR: Rose of Sharon is susceptible to 8 known diseases. Monitor regularly for early detection.
Powdery Mildew
Powdery mildew is a common fungal disease caused by various fungi species including Erysiphe, Podosphaera, Oïdium, and Leveillula. It affects over 10,000 plant species worldwide. The disease thrives in warm, dry climates with high humidity and appears as a distinctive white powdery coating on plant surfaces.
Aphids
Aphids are small, soft-bodied, pear-shaped insects (1/16 to 1/8 inch long) that feed by sucking nutrient-rich sap from plants. They reproduce rapidly and can quickly weaken plants, causing distorted growth and transmitting plant viruses. Aphids come in various colors including green, black, red, yellow, brown, and gray. They secrete honeydew, a sticky substance that attracts ants and encourages sooty mold growth.
Whiteflies
Whiteflies are small, soft-bodied, winged insects closely related to aphids and mealybugs. They are moth-like in appearance, about 1/16 inch long, triangular in shape, and gray-white in color. These sap-sucking pests feed on plant tissue, causing yellowing, stunted growth, and wilting. They also excrete honeydew, which attracts ants and promotes sooty mold growth. Whiteflies can transmit serious plant viruses.
Root Rot
Root rot is a serious fungal disease that affects the root system of plants, causing them to decay and die. It is primarily caused by overwatering, poor drainage, or soil-borne fungi such as Pythium, Phytophthora, Rhizoctonia, and Fusarium. The disease thrives in waterlogged conditions where roots are deprived of oxygen, making them susceptible to fungal infection.
Meaning & Symbolism
In South Korea it is the national flower (Mugunghwa) and symbolizes perseverance, immortality, and eternal love. More broadly, it represents beauty, resilience, and renewal.
Fun Facts
It is the national flower of South Korea, called Mugunghwa, symbolizing perseverance and immortality
Blooms from midsummer to fall, filling the garden when most other shrubs have finished flowering
Can reach up to 12 feet tall and live for decades with minimal care
Each flower lasts only one day, but the plant produces hundreds of buds throughout the season
Frequently asked questions
How often should I water Rose of Sharon?
Is Rose of Sharon toxic to pets?
Why is my Rose of Sharon not blooming?
When should I prune Rose of Sharon?
Can Rose of Sharon grow in a pot?
Compare with similar plants
| Attribute | Difficulty | Light | Watering | Pet Safe |
|---|---|---|---|---|
| Flame Violet | Easy | Partial shade | 7d | ✓ |
| Prickly Lettuce | Easy | Direct sun | 7d | ✓ |
| Christmas Tree Plant | Easy | Bright indirect | 10d | ⚠️ |
| Peace Lily | Easy | Low light | 7d | ⚠️ |
