'Gladiator' Allium
Bulbs
- Long-blooming purple flowers late spring to early summer!
- Large spherical blooms, great for cutting arrangements.
- Plant bulbs in fall to enjoy the following spring & summer.
- Zones 4-8, sun/part sun, up to 3-4’ tall x 1-2 wide at maturity.
UNABLE TO SHIP TO: ID, OR, IN, WA, CANADA
ZONE
EXPOSURE
HEIGHT
Description
The best time to plant allium bulbs is in the fall, about 6 weeks before the ground freezes. This gives the bulbs time to establish hardy root systems before entering dormancy, ensuring healthy, vibrant blooms in spring. If holding allium bulbs for any length of time, keep them cool and dry in a dark location.
Details
Common name: Ornamental Onion
Zones: 4-8
Sun exposure: Full sun to part sun.
Height x width: 3-4’ tall x 1-2’ wide
Flower color: Purple
Foliagie color: Green
Planting Time: Fall
Season of Interest: Late spring to early summer.
Bloom Time: Late spring to early summer.
Features: Low-maintenance, spring interest, cut flower, container-friendly, cold-tolerant, deer-resistant, rabbit-resistant, fragrant
Uses: Cut flower gardens, landscaping, specimen, flowering hedge, containers, rainbow gardens, cottage gardening, pollinator garden
How to Grow
Light: Full sun (6+ hrs/day) to part sun (4-6 hrs/day)
Water: Average water needs. Water deeply after planting, then leave alone until spring.
Planting Depth: Minimum 7” deep.
Spacing: Minimum 8-10" apart.
Fertilizing: Fertilize at planting with slow-release fertilizer.
Winterizing: No special winter requirements.
Plant spacing is based on the ultimate width of the plants. This figure is normally given as a range; for example, 3-5’. If you live in a cold climate and/or want plants to fill in more quickly, plan to space at the shorter end of the range. If you live in a warm climate, are on a limited budget, or are willing to wait longer for plants to touch, use the higher end of the range. Using the larger number is recommended when calculating distance from a building or structure. There’s really no such thing as "maximum spacing": if you don’t want your plants to touch, you can space them as far apart as you’d like. All plant spacing is calculated on center, or in other words, the centers of the plants are spaced one half of their eventual width apart:
Unless you are planting in a straight line, as you might for hedges or edging, space your plants in a staggered or zig-zag pattern for a more interesting and naturalistic look:
Not sure just how many plants will fit in your garden? Our calculator gives you the exact amount of plants required for your space. Simply update the values and the calculator will re-calculate accordingly. Spacing information can be found in the 'How to Grow' tab on each plant's page.