We have been purchasing our bulbs from A.D.R. for many years now. As a contractor, the process to order bulbs for many different clients is easy and seamless. The website is a wonderful tool that we refer to quite often for product information, photos, and combination ideas. Our bulbs always arrive on time and wonderfully organized to make our installation much more efficient . The product is top notch and leaves our customers with wanting more and more each season.

Ashley Marrin , Bret-Mar Landscape

Allium Giant 'Mount Everest'

Ornamental Onion

Allium 'Mount Everest' reaches 3 to 4 feet tall, featuring striking 6-inch pure-white flower globes that bloom from late spring into summer. Thriving in full sun and well-drained soil, it is drought-tolerant, deer-resistant, and attracts pollinators. Its sturdy stems ensure lasting ornamental appeal. Ideal for borders and cottage gardens, it pairs well with peonies, irises, and delphiniums. 'Mount Everest' is a hybrid of Allium stipitatum and Allium hollandicum.

Bulk Tray of 100 Bulbs, Size 20+

247.50

Allium Calculator

Fill out the dimensions below to determine how much product is required for planting.

When should I plant Allium Giant 'Mount Everest'?

Growing and Maintenance Tips for Allium Giant 'Mount Everest'

Timing: Plant in fall before the ground freezes to ensure proper root development. Ideal soil temperature for planting is 60°F or colder.
Location: Choose a sunny, well-drained spot—poor drainage can cause bulb rot.
Depth & Spacing: Bury bulbs two to three times their height and space them six to twelve inches apart for optimal growth.
Soil: Maintain a pH of 6 to 7 and enrich with organic matter for better drainage.
Watering: Keep soil moist but not soggy during initial growth; once established, alliums are drought-tolerant.
Foliage Management: Leaves yellow after blooming—plant among perennials to disguise fading foliage.
Deadheading: Remove spent flowers to prevent self-seeding unless you want naturalized clusters.
Fertilization: Apply a balanced fertilizer in early spring to support strong blooms.
Pest & Disease Resistance: Alliums are deer and rabbit resistant but avoid planting in areas with excessive moisture to prevent fungal issues.
Crop Rotation: Change planting locations yearly to prevent soil-borne diseases.