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Allium Bulbs (Giant) - Giganteum Shipping Now

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Unit Size Unit Price Savings Qty
2 Bulbs $20.99 Notify Me
4 Bulbs $37.99 10% Notify Me
10 Bulbs $84.99
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  • Wild Ornamental Flowering Onion, Deer-Resistant Perennial
  • Numerous Small Star-Shaped Blooms that Form Globe-Shaped Clusters
  • Easy to Grow Pollinator Attractor, Perfect for Beds, Borders and Cottage Gardens

Product Description

The majestic and stunning Giganteum allium is perhaps the tallest available allium on the market, with blooms the size of a softball, it grows up to 5 feet tall. Giganteum is a fall planted flower bulb that blooms from late spring into early summer. Like all alliums, Giganteum is best planted in clumps of 10 or more bulbs to create a stunning and unusual effect in the late spring garden. Giganteum alliums should be planted in a sheltered location to protect the blooms from strong winds. Giganteum allium is excellent for either cut flower or dried flower arrangements.

  • Fast Facts

    Name:Allium Bulbs (Giant) - Giganteum
    Botanical Name:Allium
    Life Cycle:Perennial
    Bulb/Tuber/Root Size:20-22+ cm Circumference - Largest Size Commercially Available
    Light Requirement:Full Sun, Partial Sun
    Planting Season:Fall
    Plant Type:Giant
    Features:Attracts Pollinators, Container Garden, Cut Flower Garden, Good For Dried Flowers, Deer Resistant, Easy to Grow & Maintain, Fragrant, Drought Tolerant
    Blooms:Early Summer
    Plant Height:48-60 inches
    Plant Spacing:5-6 inches apart
    Planting Depth:6 inches Deep
    Hardiness Zones:4, 5, 6, 7, 8, 9
  • Planting Instructions

    How to Plant Giganteum Allium Bulbs

    About Alliums

    Alliums are essentially blooming onions – no, not the ones you might find in your local chain restaurant, but rather, flowering bulbs that compliment any late spring garden. Unlike more common fall planted/spring blooming bulbs such as tulips and daffodils, the allium is a curiosity that is sure to impress and inspire for years to come. Also known as ornamental onions, Allium is ideal for making color and height combinations in the border. Most alliums flower in June, just after the real spring flowers, and before most summer flowers comes into bloom. They therefore form an indispensable perennial that keeps the border in flower well into the year.

    When to Plant Allium Bulbs

    Plant allium bulbs in the fall for late spring and early summer bloom.

    Where to Plant Allium Bulbs

    Allium bulbs are easy to plant. Like most flower bulbs, they prefer full sun, but will also thrive in partially shaded locations. Given both sun and a good drainage, they will reappear year after year. Their slim, vertical shape means that most take up very little ground space, while adding accents to a blowsy planting scheme.

    How to Plant Allium Bulbs

    In most cases, you will want to fertilize your allium bulb planting site with bulb food to ensure that the bulbs are properly established. For best results, we recommend planting your allium bulbs just over twice as deep as the height of the bulb and about 5 or 6 inches apart. When planting, make sure that the bulbs are planted with the pointy end up. Make sure that you water your allium bulbs sufficiently after planting. Allium bulbs are versatile and are hardy in most climates. Allium bulbs can also be planted successfully indoors.

    How to Care for Alliums

    Congested clumps can be lifted and divided - straight after flowering, if necessary. Dead-head before the seeds disperse if you want to avoid seedlings.

    Download Printable Planting Guide

  • Planting Video

  • Seed Coverage

    # of Bulbs (Dense)# of Bulbs (Moderate)

Product Reviews

Global Rating: 5.00 from 2 reviews

Review By

Love these

I have purchased from Eden Brothers for years. The allium bulbs are large and healthy, the best I've ever received from mail order.
Every spring when the alliums come up I see they have increased, that's exciting. The stalks are sturdy and the blooms are beautiful, bees love them. When they are done blooming, my husband spray paints the heads a purple color so we still have beauty well into July.
Don't be afraid to purchase your Allium bulbs from Eden Brothers, you won't be disappointed!


Review By

Fantastic looking bulbs!

Haven't got them in the ground (just came today), but they are huge, fresh and clean. Best looking bulbs I have ever ordered and I can't wait to see the blooms!

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