Colchicum alpinum
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Colchicum alpinum

Alpine autumn crocus · Alpine Meadow Saffron · Alpine Saffron

Tier 2 Difficulty: medium Water: low Light: partial_sun
Temperature
5–35 °C
Soil pH
6–7
Hardiness
Zone 5–9
Click count
74
Observations
1,080

Description

Source: leafsnap

Colchicum alpinum, the alpine autumn crocus, is a corm-forming perennial with pale, delicate rosy-purple flowers, similar to C. autumnale but smaller. It is native to the Alps and the Appennini of Italy, Switzerland, France and Sicily, and cultivated as an ornamental in other regions.

Care Guide

💧 Water

Alpine saffron comes from mountainous areas and flourishes in well-drained soils with moderate moisture. It needs regular weekly watering but should not be overwatered, especially in outdoor rock gardens. Good drainage is essential to prevent root rot, as the plant is sensitive to waterlogged conditions.

☀️ Light Partial sun

Alpine saffron naturally occurs in settings like forest understories or rocky terrain, where it grows in natural shade. It prefers partial sun but can tolerate full sun or full shade, showing its versatile and hardy character.

Ideal: Partial sun
🌡️ Temperature 5–35°C
Ideal temperature: 5–35°C
💨 Humidity
Humidity:
🪴 Soil 6-7
Soil pH: 6-7
🌱 Fertilizer

For Alpine saffron, the main time to fertilize is in early spring when the flowers are forming. The right fertilizer encourages stronger blooms and helps Alpine saffron produce attractive flowers. Fertilizing in early spring ensures good flowers during the season and provides energy for dormant growth phases.

🪴 Pot & Repot
✂️ Pruning

Alpine saffron showcases vibrant blooms in the fall. To promote healthy growth and maintain a compact shape, prune any dead or damaged foliage as well as spent flowers in early spring. Avoid pruning in late summer, as this is the time when the foliage is nourishing the bulbs. Correct pruning not only enhances air circulation and reduces the risk of fungal diseases but also improves the plant's appearance.

🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Herb
Life Cycle
Perennial
Genus
Colchicum
Family
Colchicaceae
Hardiness Zone
5-9
Mature Height
10 cm to 20 cm
Mature Spread
5 cm to 10 cm
Leaf Color
Green, Dark Green
Leaf Type
Deciduous
Flower Color
Pink
Flower Size
3.05 cm to 5.08 cm
Bloom Time
Late summer, Early fall
Planting Time
Spring, Summer
Harvest Time
Mid fall, Late fall
Native Area
Italy, Switzerland, France

Tags (5)

Common Names (3)

en Alpine autumn crocus
en Alpine Meadow Saffron
en Alpine Saffron