Height:

15.0-20.0 Inches

Spread:

10.0-15.0 Inches

Hardiness Zones:

4,5,6,7,8

Flower Color:

Purple shades

Foliage Color:

Green shades

Sunlight:

Full Sun (> 6 hrs. Direct Sun) Part Shade (4-6 hrs. Direct Sun)

Water Requirements:

Low Water Needs Average Water Needs

Soil Quality:

Poor Soil Quality Average Soil Quality Fertile Soil Quality

Soil Chemistry:

Acidic Soil (pH < 7.0) Neutral Soil (pH = 7.0)

Bloomtime:

Midsummer Late Summer

Attracts Wings:

Attracts Butterflies Bee Friendly

Critter Resistant:

Deer Resistant Rabbit Resistant

Seasonal Interest:

Dried Seed Heads

Growth Rate:

Medium

Garden Style:

Patio Container Eclectic Modern Rock Garden

Other Features:

Border Plant Container Cut Flower Drought Tolerant Easy To Grow Fragrant Flowers Fragrant Foliage Mass Planting

Origin:

Not Native to North America

Allium 'Millenium' is very easy to grow in full sun to part shade.  It will tolerate soil of any fertility and will grow in clay soil.  This selection has not been known to reseed and is not invasive.  It may be propagated in fall by digging it up and dividing the rhizome with the bulblets attached.  Allium is typically pest and disease free.  Its aromatic foliage also makes it deer and rabbit resistant.

Growing Temperature:

60-65° F

Holding Temperature:

50-60° F

Soil PH:

5.5-6.2

EC (What is EC?):

2.0-3.0 pour through method

Fertility:

Once plants are established, provide constant liquid feed at 125-150 ppm.

For Controlled Release or Slow Release Fertilizer, see your preferred supplier for recommended rates for incorporation or top dressing, as it varies by fertilizer.

Vernalization:

6-9 weeks of temperatures below 40° F are required.

Pests & Diseases:

Onion flies (Delia), stem nematode (Ditylenchus), onion thrips. Smut, rust, smudge (Colletotrichum), onion white rot (Sclerotium), bacterial soft rots (Erwinia).

Potting & Timing:

Plant in a well-drained soilless media.

Moisture:

Allow Allium to dry slightly between waterings.

Planting Level:

Place crown just at or slightly below soil level.

PGRs/Pinching:

No PGRs are necessary if grown under proper conditions.

Awards

Perennial Plant Association Plant of the Year -- 2018

Colorado State University "Top Performer" Perennial -- 2019

Fun Facts

The blossoms and foliage of all kinds of Alliums are edible since they members of the leek-chive-garlic family.  Some taste quite strong but others offer a more delicate flavor.  Try adding them to salads, soups, stir frys, and Mexican dishes. 

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