Primula japonica
Notify MePrimula japonica, commonly known as Japanese primrose, is a moisture-loving perennial admired for its elegant, tiered flower clusters arranged in whorls along tall, upright stems. Flowering from late spring to early summer, the flowers appear in shades of deep pink, red, magenta, or white, rising above rosettes of broad, crinkled green leaves. Growing to 45 to 60 cm high and 30 to 40 cm wide, it is ideal for woodland, cottage, and damp border garden styles.
Plant in partial shade with consistently moist, humus-rich, free-draining soil. Performs best in cool, sheltered positions near streams, ponds, or in shaded borders. Space plants 30 to 40 cm apart to allow for natural clump formation. Deadhead after flowering and divide every few years to maintain vigour. A graceful, long-flowering perennial that brings bold vertical colour to shaded, moisture-retentive garden areas.
Trimming: Cut back spent flower stems after flowering to keep the plant tidy and direct energy back into root and foliage growth. In autumn, remove any dead or yellowing leaves as the plant begins to die back.
Deadheading: Regular deadheading during the flowering season encourages a longer display and reduces self-seeding if not desired.
Fertilising: Apply a balanced, slow-release fertiliser in early spring. In poor soils, a second light feed after flowering will support continued vigour and next year’s growth.
Watering: Water regularly to maintain consistently moist soil-Primula japonica thrives in damp, humus-rich conditions. Ideal for stream sides, woodland borders, or shaded gardens. Avoid letting the soil dry out, especially in spring and early summer.
Pest Control: Slugs and snails may damage young growth-use organic slug controls as needed. Aphids may occasionally appear on flower stems; treat early with neem oil or insecticidal soap.
Disease Management: Ensure good airflow to reduce the risk of powdery mildew and leaf spot. Avoid overhead watering and remove any diseased or damaged foliage promptly. Divide clumps every 3-4 years to maintain plant health and prevent overcrowding.
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For orders below $250, the following flat-rate delivery charges are applicable:
- Urban delivery within mainland New Zealand: $19.95
- Rural delivery within mainland New Zealand: $39.95
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