Millennium Ornamental Onion (Allium 'Millennium')
AL-lee-um 'Millennium'

Deciduous Perennial Upright, Clump-forming in the Amaryllidaceae Family
Buy Millennium Ornamental Onion
Size Notes Price Availability
#1 gallon Field $9.67
#2 gallon Field $27.89
50ct Plug Deep Flat Field $130.20
Tray of 10 4" pots Field $58.90
Tray of 6 #1 gallons Field


Tray of 6 #1 gallons Field

10" high; buds & 1st flwrs opening; FRESH; full; GREAT!


Limited Availability


About Onions

Allium, is a large genus of onion- or garlic-scented bulbous herbs of the amaryllis family (Amaryllidaceae). Allium species are found in most regions of the world. Several are important food crops, including the onion (Allium cepa), garlic (A. sativum), chive (A. schoenoprasum), and leek (A. porrum), and some are cultivated as ornamental border plants.

Allium species are characterized by pungent linear leaves and flowers with six petals. Many arise from bulbs or rhizomes, and most are perennials. The flowers are frequently borne in spherical flower clusters and produce black seeds in dry capsule fruits. Some plants reproduce asexually from bulbils in the flower head.


Plant Data

Mature Size 12 - 20 inches tall. 10 - 16 inches wide.
Growth Rate Moderate
Sun Exposure Partial Shade - Full Sun
Moisture Tolerance Dry - Medium
Zones 5a - 9b (Usually hardy to -20° F)
Tags Attracts Butterflies, Attracts Pollinators, Attracts Wildlife, Container, Deciduous, Deer Resistant, Disease Resistant, Drought Tolerant, Dry, Extended Bloom Time, Fragrant Flowers, Fragrant Foliage, Full Sun, Good for Borders, Good for Butterfly Garden, Good for Cottage Garden, Good for Cut Flowers, Good for Mass Planting, Groundcover, Low Maintenance, Medium, Most Popular, Naturalizing, Non-Allergenic, Normal Soil, Ornamental, Partial Shade, Partial Sun, Perennial, Rabbit Resistant, Showy Flowers, Tolerant of Clay Soil, Tolerant of Loamy Soil, Tolerant of Poor Soil, Tolerant of Sandy Soil, Well-Drained Soil, Woodland Garden
Bloom Period July-August
Flower Color Rose-Purple
Foliage Color Green



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Black Scallop Bugleweed, August Asteroids Ornamental Onion, All Gold Japanese Forest Grass, Astra Blue Balloon Flower, Viette's Little Suzy Black-Eyed Susan, Big Ears Lamb's Ear,
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Pricing and Availability History

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Limited Availability

We try very hard to source exactly what you’d like, but sometimes growers run out of plants! While this variety is a great deal at the price shown, we know that it has limited availability. If you want the plant even if it might be more expensive, or in a different size or quantity -- after you place your order, just send us a quick note at Then, we’ll try to get you some version of this from one of our growers. And if we can’t get it from anywhere, of course, we’ll send a refund!

Field-Grown vs. Greenhouse-Grown Plants

Plants which are well-adapted to our local climate are most often field-grown (outside). Field-grown plants are generally cheaper and have the advantage of already somewhat acclimated to our cold winters, but that means they’re not artificially far along in the spring and tend to bloom at the normal time in our area.

Spring annuals and tender perennials are typically grown in Greenhouses so they can be ready and luxurious exactly when customers want them. Some perennials are also “forced” into early bloom in greenhouses. In May, there can be a very big difference between field-grown and greenhouse-grown plants of the same type. The latter typically look good right away (so they’re a great choice where that’s important), but we typically pay a premium for it.

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No Pricing or Availability Right Now

We order from a rotating cast of the best nurseries in the Great Lakes region. It looks like we've offered this plant in the past, but the nurseries we're working with this week don't appear to have it in stock at the moment.

Our goal is to bring as many plants together under "one roof" as possible, so we'll try hard to make it available again in the future!