Crocus pallasii: complete guide

Overview

Crocus pallasii, also called Pallas's saffron, is a fascinating autumn-flowering crocus species. This wild-growing crocus is far less known than cultivars but equally beautiful and arguably more interesting.

Perfect for collectors and garden enthusiasts wanting to experiment with uncommon autumn-flowering bulbs. The tiny bulbs produce substantial flowers and considerable character for autumn gardens.

Appearance & bloom

Grows from small bulbs into flowers 8-15 centimeters tall. The flowers appear in various shades - from purplish-red to deeper purple, usually with dark striping on petals. Some specimens produce nearly white flowers with purple tinges.

The style is typically orange-red, contrasting beautifully with the petals. The leaves are narrow and grass-like, green-colored. The flowering period spans October through December.

Ideal location

Performs best in sunny to lightly shaded locations. In the wild, this crocus grows in mountainous and sub-forest terrain. Provide at least 3-4 hours of direct daily sunlight.

Plant this crocus in rock gardens, in crevices between stones, along pathways, or in alpine plantings. It also grows well in pots on terraces.

Soil

Thrives best in well-draining, slightly sandy soil. Waterlogging is harmful for this plant. If you work with heavy clay, add sand, perlite, and gravel to improve drainage.

In pots use alpine potting soil with extra drainage material.

Watering

Is very drought-tolerant. After planting you need scarcely water. Autumn and winter rains usually provide adequate moisture. During dry periods, light watering helps.

During bloom and post-bloom winter phases you can carefully add some water. After bloom, provide minimal water.

Pruning

Requires no pruning. Spent flowers can be pinched off to prevent self-seeding. Allow foliage to rest undisturbed after bloom so energy returns to bulbs.

Maintenance calendar

August-September: Plant bulbs. October: Leaves and flowers appear. October-December: Full bloom period. December-January: Bloom gradually concludes. January-February: Leaf fall. February-May: Rest period with some growth. June-August: Complete dormancy.

Winter hardiness

Extremely winter-hardy. It tolerates temperatures down to -20 degrees Celsius. Throughout Europe it grows outdoors without protection.

Frost damage is rarely a concern. The natural frost cycle actually helps bulbs.

Companion plants

Crocus pallasii pairs beautifully with Colchicum autumnale and other autumn bloomers. Other crocus species form nice groupings.

Closing

Crocus pallasii is a splendid plant for experimental gardeners. With flowers from October through December, this rare crocus brings unusual autumn beauty.