
Snowrose (Serissa japonica 'Kowloon') is an evergreen shrub with delicate, white-tinted leaves and showy pink flowers in the spring. It grows up to two feet tall and wide and is a great choice for any small garden. This plant flourishes in slightly acidic, well-drained soil and needs minimal pruning. It also does well in partial shade but may need protection from extremely hot temperatures. The Snowrose is an espcially fast-growing plant that blooms prolifically and will add blizzly beauty to any outdoor space.
Read MorePlant Care Essentials:




Plant Profile:
- Scientific Name: Serissa japonica 'Kowloon'
- Size: 2.00 to 4.00 feet
- Plant Family: Rubiaceae
- Drought Tolerant: Yes
- Poisonous To Humans: No
- Plant Type: Broadleaf evergreen
- Light Requirements: part shade
- Pruning Month: February
- Fruits: No
- Tropical: No
- Indoor: Yes
- Flower Color: White
- Plant Origin: Japan
- Growth Rate: Low
- Poisonous To Pets: No
- Edible Fruit: No
Care Instructions:
Serissa japonica ‘Variegata’, commonly known as Snowrose, is a charming, small evergreen shrub known for its delicate white flowers and attractive variegated foliage, featuring green leaves edged with creamy white. This plant is often used in bonsai and as an ornamental plant in gardens due to its compact growth and year-round interest. Snowrose requires specific care to thrive, including proper light, watering, and humidity levels, making it a favorite among bonsai enthusiasts and gardeners looking for a unique addition to their collection.
Light
Snowrose thrives in bright, indirect light but can tolerate partial shade. While it can handle some direct sunlight, especially in the morning or late afternoon, avoid intense midday sun, which can scorch the leaves. If grown indoors, place it near a bright window with filtered light.
Water
Water your Snowrose regularly, keeping the soil consistently moist but not waterlogged. This plant prefers evenly moist soil, so avoid letting it dry out completely. During the growing season, maintain regular watering, but reduce the frequency slightly in the winter. Ensure the pot has good drainage to prevent root rot.
Soil
Snowrose prefers well-draining, slightly acidic soil. A mix of peat, perlite, and loam works well to provide the necessary drainage and aeration. The soil should be kept moist but not soggy, as Snowrose is sensitive to both drought and waterlogging.
Temperature
The optimal temperature range for Snowrose is between 60°F and 75°F (16°C to 24°C). It prefers a stable environment and should be protected from cold drafts and temperatures below 50°F (10°C). While it can tolerate warmer temperatures, ensure it is not exposed to extreme heat, which can stress the plant.
Humidity
Snowrose enjoys moderate to high humidity, ideally around 50-70%. If your home is dry, especially during winter, consider misting the plant regularly or using a humidity tray to maintain the moisture level. Increased humidity helps prevent the leaves from drying out and promotes healthy growth.
Fertilizer
Feed your Snowrose with a balanced, water-soluble fertilizer diluted to half strength every 4-6 weeks during the growing season (spring through early autumn). Reduce feeding in the fall and winter when the plant’s growth slows. Be cautious not to over-fertilize, as this can lead to salt buildup in the soil and damage the roots.
Best Placement Ideas
- Indoor Bonsai: Snowrose is ideal for bonsai, where its delicate flowers and compact growth can be showcased. Place it in a bright, indirect light location to maintain its health and appearance.
- Windowsills: Snowrose can be placed on windowsills in rooms with bright, filtered light. Its variegated foliage and white blooms add a touch of elegance to indoor spaces.
- Outdoor Containers: In temperate climates, Snowrose can be grown outdoors in containers during the growing season, provided it is protected from intense sunlight and cold temperatures.
Common Issues
Pests: Snowrose can be susceptible to pests like spider mites, aphids, and scale insects. Regularly inspect the plant for any signs of infestation, such as sticky residue, webbing, or distorted leaves. Treat pest problems promptly with insecticidal soap or neem oil.
Diseases: Overwatering or poor air circulation can lead to fungal infections, such as root rot and leaf spot. Ensure good air circulation around the plant and avoid overwatering. If you notice yellowing leaves or dark spots, it may indicate a fungal issue. Improve air circulation and avoid overhead watering to reduce the risk of disease.
Things to Watch Out For
Watch for signs of stress, such as yellowing or dropping leaves, which may indicate improper watering, low humidity, or inadequate light. Snowrose is sensitive to environmental changes, so sudden drops in temperature or humidity can cause leaf drop. Adjust its care routine to better meet its needs and avoid placing it in drafty areas.
Propagation Tips
Propagation Method: Snowrose can be propagated through softwood cuttings taken in late spring or early summer. Take a 4-6 inch cutting from a healthy stem, remove the lower leaves, and place the cutting in a well-draining soil mix. Keep the soil moist and the cutting in bright, indirect light until roots develop.
Best Time to Propagate: The best time to propagate Snowrose is in late spring or early summer when the plant is actively growing. This timing allows the new plants to establish roots and grow during the most favorable conditions.
Maintenance Tips
Pruning: Pruning your Snowrose involves trimming back any leggy or unruly stems to maintain its compact shape. Regular pruning helps control the plant’s size and encourages bushier growth. Use clean, sharp scissors or pruning shears to avoid damaging the plant. Deadheading spent flowers will also encourage more blooms.
Repotting: Snowrose should be repotted every 2-3 years or when it outgrows its current container. Choose a slightly larger pot with fresh, well-draining soil. Repotting is best done in early spring before the growing season begins to give the plant time to adjust.
Did You Know? 
Serissa Japonica ‘Kowloon’ is known for its unique leaf variegation and small white flowers. This compact plant thrives in bright, indirect light and is often used in bonsai, adding an intricate and delicate beauty to indoor or outdoor gardens.
Popular Questions
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