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Blue Allium caeruleum

Allium caeruleum, Allium azureum

$9.32
$9.32
per Bag of 20
Sale |
ZONES  2-10 | Good to grow! Zone

Blue Allium caeruleum is a deep, clear blue ornamental onion that creates perfect globes of star-shaped flowers on stems only 16" tall. Its rare blue color will help attract bees and other pollinators to your garden. A real beauty! (Allium caeruleum)

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Blue Allium caeruleum

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Description

The Blue Allium brings true blue to the group. Only 14-16" tall with very large flowers, it'll look great in your garden.

About the Alliums. Every family has its beauties. And yes, these are the best-looking members of the family of Allium, which includes onions, leeks and chives. (The word, Allium, means 'onion' in Latin.) Many Allium species are native to Iran, where many tulips also originate, and the edible Alliums have been cultivated and a staple of diets for over 10,000 years.

The beauty of the small lavender flowerheads of chives have always been a decorative highlight in herb gardens. But in recent years, gardeners have become fascinated with the larger Alliums, particular the giants. As always, the Dutch hybridizers took them into their stocks, and now we have a whole group of beautiful new flowering onions for gardens. Most bloom in late spring so they bridge the gap nicely between the tulip season and early summer bloom of peonies and poppies.

Experienced gardeners plant these giant Alliums in groups of several bulbs, set very close together. The foliage is not attractive for long, so it's important to plant them next to other perennials whose foliage will more or less cover the Allium's base. This way, the wonderful flower stalks rise up and tower over the other flowers for a wonderful period of bloom. 

Planting & Care

Further Reading:

Shipping

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat.  The ‘Plant Information’ section describes how that item will ship. All perennials and fall-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

Perennials and fall-planted bulbs are shipped at the proper planting time for your Growing Zone. Perennial and fall-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment and all items are shipping to the same address, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you have any questions, please call Customer Service at (802) 227-7200 or contact us by email or chat.

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key features

Advantages
  • Deer Resistant
  • Squirrel Resistant
  • Easy To Grow
  • Cut Flowers
  • Dried Flowers
  • Fragrant
Light Requirements
  • Full Sun
  • Half Sun / Half Shade
Bloom Time
Late spring to early summer

Additional information

Planting Time
  • Fall
Soil Moisture
  • Dry
  • Average
Soil Type
  • Average Soil
  • Loamy Soil
  • Sandy Soil
  • Clay Soil
  • Well-Drained Soil
Flower Size
1-2" flowers
Mature Height
14-16" tall
Bulb Spacing
16 per sq ft
Flower Bulb Size
5 cm
Planting Depth
3" deep
Growing Zones
  • Zone 2
  • Zone 3
  • Zone 4
  • Zone 5
  • Zone 6
  • Zone 7
  • Zone 8
  • Zone 9
  • Zone 10
Ideal Region
  • Northeast
  • Southeast
  • Midwest
  • West
  • Southwest
  • Pacific Northwest
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