Coastal kowhai (Sophora chathamica)

Coastal kowhai

Coastal kowhai (Sophora chathamica) grows in coastal forests and is a popular native tree for larger gardens but beware, all parts of the plant, particularly the ripe yellow seeds, are poisonous due to a major toxin called Cytisine.

Scientific classification

Species

Coastal kowhai (Sophora chathamica)

Legumes, milkworts and allies

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Perennial

Lifespan

Tree

Plant Type

6 m

Plant Height

4 m

Spread

5 mm to 1 cm

Flower Size

Yellow, Gold

Flower Color

Images of Coastal kowhai

Care Guide for Coastal kowhai

Every 2-3 weeks

Water

Full sun

Sunlight

20 - 35 ℃

Ideal Temperature

Water: Coastal kowhai thrives in areas with moderate rainfall, balancing drought tolerance and humidity needs. Watering every 2-3 weeks suffices for health. As an evergreen, coastal kowhai retains leaves year-round, managing water resources efficiently during dry spells.

Fertilize: For optimal care of coastal kowhai, use a balanced fertilizer bi-monthly in spring and summer, reducing to every two months in fall and winter. Water before fertilizing, use slow-release for mature plants, and tailor amounts to coastal kowhai's size to prevent overfertilization.

Pruning: Pruning coastal kowhai in early to late winter enhances its shape and vigor by removing dead branches and improving air circulation. Regular pruning prevents disease and supports healthy flowering. Consult reliable horticultural sources for techniques suited to regional conditions.

Propagation: Coastal kowhai, a hardy shrub from New Zealand, flourishes in coastal areas. Effective propagation involves semi-hardwood cuttings from new growth. Utilize well-draining soil and maintain consistent moisture. Applying rooting hormone aids establishment, and gradual acclimatization prepares coastal kowhai for transplanting.

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Images of Coastal kowhai

Care Guide for Coastal kowhai

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