Blue-flowered allium (Allium sikkimense)

Blue-flowered allium

Also known as: Sikkim onion

Blue-flowered allium is a popular garden plant harvested for cut flowers in the summer. The roots and stems produce an onion-like scent, and it is one of the few plants in the genus with blue flowerheads.

Scientific classification

Species

Blue-flowered allium (Allium sikkimense)

Instantly identify plants with a snap

Snap a photo for instant plant ID, gaining quick insights on disease prevention, treatment, toxicity, care, uses, and symbolism, etc.

Download the App for Free

Perennial

Lifespan

Green

Leaf Color

2.5 cm

Flower Size

Purple, Blue, Pink

Flower Color

Deciduous

Leaf type

5 - 35 ℃

Ideal Temperature

Images of Blue-flowered allium

Distribution of Blue-flowered allium

Distribution Map

Blue-flowered allium is indigenous to the temperate Himalayan region, thriving in mountainous areas of South-Central Asia. It has also been introduced to cultivation in various temperate zones worldwide, where it is grown for ornamental purposes, adapting to similar climates beyond its native range.

Native

Cultivated

Invasive

Introduced

No species reported

Discover plant distribution and habitat

Gain insights into where plants thrive and how they adapt, helping you identify, cultivate, and protect them with essential information on habitats, distribution maps, and climate trends.

Download the App for Free

Care Guide for Blue-flowered allium

Every week

Water

Full sun

Sunlight

5 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Originating from mountainous regions, blue-flowered allium thrives with less frequent watering, mirroring its native habitat's rainfall. Weekly watering is recommended for optimal growth, while its bulbous nature allows for deep root development with thorough watering during the active growing season. It is ideal for rock gardens or borders.

Fertilize: To thrive, blue-flowered allium needs balanced fertilizers in spring and fall, along with high phosphorus for blooming. Fertilize every 6-8 weeks during growth using a diluted mix, and reduce during dormancy. Water after feeding and adjust as needed for optimal health and flowering.

Pruning: Blue-flowered allium features vibrant blue flowers and benefits from strategic pruning in early to late spring. Remove dead stems and spent flower stalks to encourage growth and prevent seeding. Regular maintenance supports shape and vigor. Use clean tools to minimize disease risk; check local guides for climate specifics.

Propagation: Blue-flowered allium is a bulbous perennial that prefers well-drained soil and thrives in full sun to partial shade. To expand your collection, divide tubers after flowering, handling them carefully, and replanting at the right depth to ensure proper growth and spacing.

Repotting: Blue-flowered allium thrives in pots with excellent drainage to prevent waterlogging, which is essential for its health and growth.

Get tips and tricks for your plants.

Keep your plants happy and healthy with our guide to watering, lighting, feeding and more.

Download the App for Free