For the past ten years, we've had the good fortune of ordering thousands of bulbs from A.D.R. each fall to help further beautify Newport, RI. Not only is the quality of the bulbs outstanding, so is their customer service and attention to detail.

John Hirschboeck , Daffodillion

Allium Giant 'Gladiator'

Ornamental Onion

Allium 'Gladiator' reaches 3 to 4 feet, showcasing 6-inch globe-shaped reddish-purple blooms from late spring to early 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, it pairs well with peonies and irises.

Description	Price
Bin Display Box of 20 Bulbs, Size 20+	$56.10
Get Notified When Back In Stock Complete this form and we'll notify you when SKU BIN6310040 is restocked. Email: Needed By: Qty Requested:
Bulk Tray of 100 Bulbs, Size 20+	$220.00
Get Notified When Back In Stock Complete this form and we'll notify you when SKU BUL35129020 is restocked. Email: Needed By: Qty Requested:
Skid of 2,500 Bulbs, Size 20+	$5,250.00
Get Notified When Back In Stock Complete this form and we'll notify you when SKU SKID0446 is restocked. Email: Needed By: Qty Requested:
Skid of 5,000 Bulbs, Size 20+	$11,000.00
Get Notified When Back In Stock Complete this form and we'll notify you when SKU SKID0447 is restocked. Email: Needed By: Qty Requested:

Allium Calculator

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

When should I plant Allium Giant 'Gladiator'?

Growing and Maintenance Tips for Allium Giant 'Gladiator'

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.