How to Water Himalayan allium?
Moist soil during active growth, then reduce watering after foliage yellows

Himalayan allium · Allium sikkimense
Also known as: blue-flowered onion; Sikkim onion
Grow in reasonably fertile well-drained soil with full sun at the front of the border. Further allium cultivation advice
Moist soil during active growth, then reduce watering after foliage yellows