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AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
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Other common names white wild saffron
Synonyms Crocus sativus 'Albus' Crocus sativus subsp. cartwrightianus 'Albus'
Family Iridaceae
Genus Crocus are dwarf, deciduous perennials growing from a corm, with linear leaves usually with a silvery central stripe, and goblet-shaped, sometimes fragrant flowers in autumn or early spring
Details 'Albus' is a perennial corm with leaves and flowers developing together in late autumn and early winter, the flowers pure white, with prominent red stigma lobes
Foliage Deciduous
Habit Tufted
Fragrance Flower
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H6
Full Sun
Aspect South-facing or West-facing or East-facing
Exposure Exposed or Sheltered
Sand
Clay
Chalk
Loam
MoistureWell-drained
SoilSand, Clay, Chalk, Loam
pHAcid, Alkaline, Neutral
Ultimate height Up to 10 cm
Ultimate spread 0-0.1 metre
Time to ultimate height 2-5 years
Cultivation Grow in a bulb frame or alpine house in a mix of equal parts loam, leaf mould and sharp sand or grit. Water freely in the growing season and apply a low-nitrogen fertiliser monthly. Keep completely dry in summer dormancy
Propagation Propagate by seed sown in containers in a cold frame when ripe or remove cormlets when dormant
Suggested planting locations and garden types Banks and Slopes Flower borders and beds Garden Edging Low Maintenance City & Courtyard Gardens Cottage & Informal Garden Gravel Garden Mediterranean Climate Plants Patio & Container Plants Rock Garden
Pruning No pruning required
Pests Corms are vulnerable to mice, voles and squirrels
Diseases Corms in storage may be subject to rots and moulds
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