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Japanese primrose

Primula japonica

Also called Japanese Cowslip

Japanese primrose
Photo: Alpsdake, CC BY-SA 4.0

Japanese primrose is a clump-forming perennial with whorls of purple flowers on tall stems in late spring, grown in gardens for its moisture-loving habit. The key to success is consistently damp, shaded soil, such as the edge of a pond or stream.

Family
Primulaceae (Primul family)
Grows as
Perennial
Light
Part shade, Shade
Water
Keep the soil consistently moist, never allowing it to dry out.
Soil
Rich, humus-rich, moisture-retentive, poorly drained loam.
Temperature
10–20 °C; hardy to about -20 °C.
How easy
Easy
Native range
Kuril Is. to Japan (Honshu, Shikoku)
Climate
temperate

About

Primula japonica, the Japanese primrose, Japanese cowslip, Queen of primroses, or valley red, is a species of flowering plant in the family Primulaceae, native to Japan. The common name Japanese primrose also applies to the related species Primula sieboldii.

The plant prefers shady, damp, poorly drained conditions such as those found at the edge of streams and ponds. Numerous cultivars have been developed for garden use, of which 'Miller's Crimson' and 'Postford white'

Other Primula plants

Moonlight Primrose · Auricula · Bulley's Primrose · Buttonhead Primrose · Primula chionantha · Primula cockburniana · Drumstick Primrose · Oxlip · Tibetan Cowslip · Primula frondosa · Primula kisoana · Baby Primrose

Text excerpted from the Wikipedia article Primula japonica by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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