Primula sieboldii (Siebold Primrose)
Siebold Primrose, Cherry Blossom Primrose, Japanese Woodland Primrose, Primula saxatilis
A glorious garden plant, Primula sieboldii (Siebold Primrose) is a deciduous perennial with slender stems bearing umbels of purple, crimson, pink or white flowers. Blooming from late spring to early summer, the dainty blossoms rise above a basal rosette of pale green, wrinkled leaves covered in short hairs. This primrose quickly establishes by self-sowing, without becoming invasive, and looks particularly beautiful planted in informal drifts. Hardy, it tolerates subzero temperatures, goes dormant during periods of extreme heat or drought, and resists some neglect. One of the best woodland primulas. Makes great cut flowers with a long vase life too.
- Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society.
- Easily grows up to 12-18 in. tall and wide (30-45 cm).
- A part shade lover, it is best grown in humus-rich, moist, neutral to acid soils. This plant may be grown in full sun in cool summer areas, provided the soil remains moist. Mulch this plant to help maintain the soil moisture and keep the roots cool.
- A very versatile plant that can be used in beds and borders, cottage gardens, city gardens, rock gardens or containers. Good edging plant too!
- A low maintenance plant. Tidy plant after flowering and remove diseased or damaged leaves.
- Deer resistant but watch out for pests such as aphids, leafhoppers, vine weevil and slugs. May be affected by grey mould (botrytis) or primula brown core.
- Propagate by division as it comes into growth or propagate by seed
- Native from eastern Siberia, Manchuria, Korea and Japan
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Requirements
Hardiness | 4
– 8 |
---|---|
Heat Zones | 1
– 8 |
Climate Zones | 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 14, 15, 16, 17, A2, A3 |
Plant Type | Perennials |
Plant Family | Primula - Primroses |
Exposure | Partial Sun |
Season of Interest |
Spring (Late) Summer (Early) |
Height | 1' – 2' (30cm – 60cm) |
Spread | 1' – 2' (30cm – 60cm) |
Spacing | 18" (45cm) |
Water Needs | Average |
Maintenance | Low |
Soil Type | Clay, Loam |
Soil pH | Acid, Neutral |
Soil Drainage | Moist but Well-Drained |
Characteristics | Cut Flowers, Plant of Merit, Showy |
Tolerance | Clay Soil, Deer |
Garden Uses | Beds and Borders, Patio and Containers, Ponds and Streams |
Garden Styles | City and Courtyard, Gravel and Rock Garden, Informal and Cottage |
By Nikolay Kurzenko / Shutterstock, Chanticleer Garden
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
Requirements
Hardiness | 4
– 8 |
---|---|
Heat Zones | 1
– 8 |
Climate Zones | 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 14, 15, 16, 17, A2, A3 |
Plant Type | Perennials |
Plant Family | Primula - Primroses |
Exposure | Partial Sun |
Season of Interest |
Spring (Late) Summer (Early) |
Height | 1' – 2' (30cm – 60cm) |
Spread | 1' – 2' (30cm – 60cm) |
Spacing | 18" (45cm) |
Water Needs | Average |
Maintenance | Low |
Soil Type | Clay, Loam |
Soil pH | Acid, Neutral |
Soil Drainage | Moist but Well-Drained |
Characteristics | Cut Flowers, Plant of Merit, Showy |
Tolerance | Clay Soil, Deer |
Garden Uses | Beds and Borders, Patio and Containers, Ponds and Streams |
Garden Styles | City and Courtyard, Gravel and Rock Garden, Informal and Cottage |