Camellia japonica ‘Kumasaka’

Camellia japonica 'Kumasaka'

Camellia japonica ‘Kumasaka’: The Captivating Rosy-Pink Blooms

Background and Family:

Camellia japonica ‘Kumasaka’, also known as Kumasaka Camellia, is a captivating evergreen shrub belonging to the Theaceae family. Native to Japan, this multi-stemmed plant showcases stunning semi-double round flowers in a beautiful rosy-pink color. With its smooth gray bark and graceful growth habit, Camellia japonica ‘Kumasaka’ adds elegance to any landscape or garden.

Discovery and Characteristics:

Camellia japonica ‘Kumasaka’ was first discovered in Japan and has since gained popularity worldwide for its exquisite blooms. It is renowned for its cold hardiness, like other Camellia varieties. Although it is a slow grower, reaching a height of approximately 1.5m or 6ft, its allure is worth the wait. The glossy oval dark green leaves of Camellia japonica ‘Kumasaka’ provide a stunning backdrop to its profuse flowering.

Flowers and Fragrance:

The showy flowers of Camellia japonica ‘Kumasaka’ are semi-double, with a round shape and a captivating rosy-pink color. When in full bloom, they create a delightful spectacle. Unlike most flowers that shed petals, the blossoms of Camellia japonica ‘Kumasaka’ drop completely. While they do not possess a strong fragrance, their sheer beauty and vibrant hue make them a standout feature in any garden.

Flowering Season:

Camellia japonica ‘Kumasaka’ delights with its abundant blooms during the winter to mid-spring months. As other plants lie dormant, this Camellia variety bursts forth with its rosy-pink blossoms, bringing color and vibrancy to the winter landscape.

Cultivation of Camellia japonica ‘Kumasaka’:

Sunlight: Camellia japonica ‘Kumasaka’ thrives in areas with full sun to partial shade. While it requires sunlight for optimal growth and flowering, too much direct sunlight can scorch the leaves. Finding a balance between sunlight and shade will ensure its well-being.

Watering: Proper watering is crucial for the health of Camellia japonica ‘Kumasaka.’ It requires regular watering, especially during the first year of growth, to establish strong roots. It is important to water deeply and infrequently, allowing the soil to dry slightly between waterings. This helps prevent waterlogging and root rot.

Soil: Camellia japonica ‘Kumasaka’ prefers well-drained, acidic soil with a pH range of 5.5 to 6.5. To create the ideal soil conditions, you can amend the soil with compost or well-rotted manure before planting. This improves drainage and adds essential nutrients for healthy growth.

Pests and Diseases: While Camellia japonica ‘Kumasaka’ is generally resistant to pests and diseases, it can be susceptible to certain issues. Common pests include aphids and scale insects, which can be controlled using insecticidal soap or neem oil. Powdery mildew, a fungal infection that causes white patches on the leaves, can be prevented by watering the plant regularly and avoiding overhead watering.


Camellia japonica ‘Kumasaka’ can be propagated through various methods:

  • Seed: Sow the seeds indoors during winter and transplant the seedlings outdoors in the spring.
  • Cuttings: Take softwood cuttings during the spring or summer and root them in a well-draining potting mix.
  • Grafting: Graft a piece of Camellia japonica ‘Kumasaka’ onto a rootstock of another Camellia species to propagate the desired characteristics.

Camellia japonica ‘Kumasaka’ is a remarkable plant that enchants with its rosy-pink blossoms and glossy foliage. By providing the appropriate light, watering, and soil conditions, and being vigilant against potential pests and diseases, you can cultivate this stunning Camellia variety and enjoy its beauty in your garden or landscape.

Camellia japonica 'Kumasaka'
Camellia japonica ‘Kumasaka’ in Los Angeles, California

Also, read:
Camellia japonica ‘Angela Cocchi’
Camellia japonica ‘ Mrs. Swan’
Camelllia japonica ‘Silver Waves’
Camellia ‘High Fragrance’
Camellia Saluenensis ‘Dogrose’
Camelias in January

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