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Millenium Allium

Allium senescens 'Millenium'

  • Late Summer Bloomer: Lilac-Purple Flowers When Most Alliums Fade
  • Cold Hardy: Thrives in Zones 4-8
  • Grows 1-2 ft Tall, 1 ft Wide
  • Showy Purple Blooms From Early Summer to Late Summer
  • Great Choice for Mass Planting in Butterfly Gardens
Regular price $4030
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Plant Size

Specifications

Plant specifications
Plant Characteristics Cold hardy, Low Maintenance, Compact/Dwarf, Flowering, Deer-resistant, Heat Tolerant, Drought resistant, Attracts Butterflies, Attracts pollinators, Container Friendly, Mosquito Repelling
Hardiness Zone 4a to 9b
Sunlight Full sun, Partial shade
Height 1-2 ft
Width 1 ft
Watering Needs Moderate
Growth Rate Fast
Blooms In Summer
Flower Color Purple
Fragrant Yes
Botanical Name Allium senescens 'Millenium'
Species senescens
Cultivar Millenium
Class Asparagales
Does Not Ship To AK, HI, ID, MT, OR, PR

Frequently Asked Questions

What planting zones is Millennium Allium hardy in?

  • Millennium Allium is hardy in USDA zones 4 to 8. This wide hardiness range makes it suitable for most temperate climates across the United States. Plant in full sun for best blooming performance in late summer.

What type of soil does Millennium Allium prefer?

  • Millennium Allium thrives in well-draining soil and tolerates poor conditions once established. These hardy perennials perform best in average to sandy soils that don't stay soggy. Avoid heavy clay or constantly wet areas for optimal growth in zones 4-8.

Is Millennium Allium a fast-growing or slow-growing perennial?

  • Millennium Allium is a moderate grower that establishes well and spreads 10-15 inches wide at maturity. In zones 4-8, expect steady growth with blooms appearing in late summer on stems up to 20 inches tall. Plant in spring for best establishment and allow 2-3 seasons for full mature size.

Is Millennium Allium deer resistant?

  • Yes, Millennium Allium is deer and rabbit resistant due to its onion-family heritage. The foliage only releases an oniony scent when crushed, which naturally deters browsing animals. Plant them confidently in zones 4-8 where deer pressure is common.

Will my Millennium Allium survive shipping during hot summer months?

  • Millennium Allium is extremely hardy and tolerates shipping stress well in zones 4-8. These tough perennial bulbs are built to withstand temperature fluctuations. Plant immediately upon arrival and water thoroughly to help establish the roots before late summer blooming begins.

Does Millennium Allium spread or stay in a clump?

  • Millennium Allium forms spreading clumps that reach 10-15 inches wide at maturity. The plants gradually expand their footprint over time rather than staying in tight, contained clumps. Plant them 12-18 inches apart to allow room for their natural spreading habit.

Does Millennium Allium require fertilizer or special feeding?

  • Millennium Allium is low-maintenance and doesn't require special fertilizing. These hardy perennials thrive in zones 4-8 with minimal care, focusing their energy on late summer blooms rather than heavy feeding. A light application of balanced fertilizer in early spring will support healthy growth and those spectacular purple fireworks.