Primula japonica 'Postford White'
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JAPANESE PRIMROSE
Family: Primulaceae
GROWING GUIDE
Geographic Origin:
Japan.
Plant Group:
Perennial.
Hardiness:
Sunset zones: 1-10,12-24.
USDA zones: 3-8.
Mature size:
Height: 18 inches (45 cm).
Width: 18 inches (45 cm).
Flowering period:
May.
Flowering attributes:
White flowers with red eyes.
Leaf attributes:
Deciduous, oblong-ovate, toothed leaves forming a rosette.
Growth habit:
Rosette forming.
Light:
Partial shade.
Soil:
Moist, humus rich, neutral to acidic soil.
Feeding:
Side dress with compost or manure. Fertilize monthly, spring through early summer with a complete organic fertilizer.
Propagation Methods:
Sow seed and keep at 64-71ºF (18-22ºC) for 2-4 weeks;
move to temperatures at 24-39ºF (-4 to +4ºC) for 4-6 weeks. | Divide in early spring.
Rainy Side Notes
Japanese primroses looks great mixed with ferns especially the Athyrium niponicum (Japanese painted fern). Their native habitat is moist woodlands but they can take a full sun position if soil is kept moist. Very easy care perennial if planted in the right place.
Debra Teachout-Teashon
Photographed in author's garden.
Recommended Reading:
Primula::
John Richards
Click amazon.com button for more information or to purchase book.
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Book Description: This classic text has been updated and revised by the leading primulas expert. Primula is among the largest and most widespread garden genera with approximately 430 species. This new edition includes a major taxonomic revision, evolutionary history of the genus, history of the exploration and introduction of Primula, cultivation, propagation and hybridization techniques, and a discussion of pests and diseases. This book is beautifully illustrated with over 100 drawings and photographs.
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