Allium Stratos
Allium Stratos

Allium Stratos

SKU: F311033
6 for $19.95
3 Reviews
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Quick Facts
Common Name: Flowering Onion
Hardiness Zone: 4-7S/8W Exposure: Full Sun
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Blooms In: May-Jun
Height: 40" Spacing: 6-8"
Read our Growing Guide Ships as: BULB
Deer Resistance: Yes
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Shipping Details Shipment begins in late August 2016, depending on your zone. See shipping tab for details

Product Details

Product Details

'Stratos' is a spectacular drumstick Allium with flower heads slightly pale, larger, and fluffier than our softball-sized 'Gladiator.' The bright green stems provide sturdy support, and its blooms are well suited to pastel color schemes.

The genus Allium (the Latin name means "garlic") offers colorful, distinctive, and long-lasting forms that are standouts in the early summer garden. Alliums are sun-lovers and prefer well-drained, even sandy soil. Deer, mice, chipmunks and related predators generally avoid this group, so you can plant with impunity. Tuck them among clumps of summer-flowering perennials where the Allium's withering foliage will be hidden by the expanding perennials.

For more information on growing Allium, click Growing Guide.


Every state has agricultural regulations that restrict the shipment of certain plants. We're sorry, but we cannot ship this item to the following states: NEVADA, IDAHO, WASHINGTON.


The size of the plants we ship has been selected to reduce the shock of transplanting. For some, this means a large, bareroot crown. Others cannot travel bareroot or transplant best if grown in containers. We ship these perennials and annuals in 1 pint pots, except as noted. We must point out that many perennials will not bloom the first year after planting, but will the following year, amply rewarding your patience. We ship bulbs as dormant, bare bulbs, sometimes with some wood shavings or moss. Shrubs, Roses, vines, and other woody plants may be shipped bareroot or in pots. The size of the pot is noted in the quick facts for each item.


We ship our bulbs and plants at the right time for planting in your area, except as noted, with orders dispatched on a first-come, first-served basis by climate zone. Estimated dates for shipping are indicated in the Shipping Details box for each item. Please refer to the Shipping Details box to determine the earliest shipping time. Unless you specify otherwise, fertilizers, tools, and other non-plant items are shipped with your plants or bulbs. Please supply a street address for delivery. Kindly contact us with two weeks notice, if you'll be away at expected time of delivery.


We guarantee to ship plants that are in prime condition for growing. If your order is damaged or fails to meet your expectations, we will cheerfully replace or refund it. Please contact our Customer Service Department at 1-800-503-9624 or email us at [email protected]. Please include your order number or customer number when contacting us.



Average Customer Rating: (3 Reviews) Write a Review

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An eye catcher!

Sharon from Attleboro, MA

I planted 6 in Fall 2014, all 6 came up in Spring 2015.

They were tall, straight, and really impressive. My neighbor commented she had never seen Alliums so big.

The description says they bloom May-June. I planted them in front of my white Peony Festiva Maxima which blooms the second-third week of June, thinking they would compliment it well. Unfortunately for me (in Massachusetts) they bloomed May to the first week of June, so were spent just as the peony came into bloom.

I will order a later blooming Allium variety this year, so I can have them blooming against the white peony backdrop as I intended. But I would recommend these to anyone who is looking for a primarily month of May bloomer or who isn't as picky as I am about timing!

3 of 3 people found this review helpful. Do you? yes no

Worth another order.

Gus from Hamilton, NY

I used them against a gray fence and they showed up well.

2 of 2 people found this review helpful. Do you? yes no  Certified buyer

Spectacular! Easy to plant.

None from Sandisfield, MA

Adds compatible and reliable color.

1 of 1 people found this review helpful. Do you? yes no  Certified buyer

Growing guide

Growing guide

Pronunciation: al'ee-um  

Bulb size: 22-24 cm/12-14 cm/6-8 cm (depending on variety) 

The genus Allium (the Latin means "garlic") includes many garden plants that grow from bulbs or bulb-like rhizomes. Allium flowers form dense balls of color at the top of strong stems, and they make excellent displays in the garden or in bouquets. Allium flowers range from purple, burgundy, lilac, silvery amethyst, pink, blue, to yellow and white. Some varieties have scented blooms, but their perfume is usually pleasant and not the least oniony. The scent of the bulbs and leaves, however, may remind you of onions.

Light/Watering: Most Alliums grow best in full sun, with at least 6–8 hours of direct sun a day. Those we offer require well-drained soil and are longest lived in locations where the soil is on the dry side during summer dormancy.

Planting: Plant Alliums more shallowly than comparably sized bulbs, just 1–2 times the diameter of the bulb deep.

Fertilizer/Soil and pH: Alliums prefer well-drained, fertile soil. Fertilize in fall and spring with any bulb fertilizer.

Continuing Care: The leaf tips of many varieties, especially the tall ones, begin to brown before bloom time. Remove the spent flowers (except from varieties that are sterile, such as 'Globemaster') if you wish to prevent them from self-sowing.

Pests/Diseases: Alliums have few problems except when planted too shallowly or in wet soil.

Companions: Place Alliums behind heavy-foliage plants such as Peonies and Iris. Good for bedding, and in mixed borders. Flower heads are good for drying.

Dividing/Transplanting: Alliums rarely need transplanting or dividing, but this can be done when the bulbs are dormant.

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