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RedCrocus Allium Cobalt Millenium Ornamental Onion, Bright Blue Flower, Hardy Perennial for Borders & Rock Gardens 2 Gallon

RedCrocus Allium Cobalt Millenium Ornamental Onion, Bright Blue Flower, Hardy Perennial for Borders & Rock Gardens 2 Gallon

$45.99 USD
$59.79 USD $45.99 USD
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pe2g726-redcrocus

Pot Size

'Cobalt Millenium' Ornamental Onion Allium 'Cobalt Millenium'

Description

An early blooming, with striking cobalt blue spherical flower heads, 'Cobalt Millenium' Ornamental Onion features dense clumps of slender, grassy foliage and produces vibrant, star-shaped flowers in late spring to early summer. Its compact size makes it suitable for borders and rock gardens.

Suggested Uses

Perfect for borders, rock gardens, perennial beds, and container plantings. Also excellent as a focal point or in pollinator-friendly landscapes.

Plant Details

  • Botanical Name: Allium 'Cobalt Millenium'
  • Common Name: Cobalt Millenium Ornamental Onion
  • Size & Growth: 6-8 inches tall; clump-forming
  • Hardiness Zones: 4-9
  • Foliage Type: Grass-like, slender leaves
  • Bloom Time: Late spring to early summer
  • Growth Rate: Moderate
  • Light Requirements: Full sun to light shade
  • Attracts Pollinators: Bees & butterflies
  • Indoor Friendly: Not recommended
  • Container Friendly: Yes, with proper drainage
  • Deer Resistant: Yes
  • Pet Warning: Mildly toxic if ingested
  • Fragrant: No
  • Cut Flower: Suitable for arrangements
  • Grows Well With: Other drought-tolerant perennials

Care Tips

  • Planting Instructions: Plant in fall or early spring in well-drained soil.
  • Soil Moisture: Moderate, avoid overwatering.
  • Soil Type: Well-drained sandy or loamy soil.
  • Humidity: Tolerant of dry conditions.
  • Pruning Instructions: Remove spent flower heads to encourage fresh blooms.
  • Winter Care: Mulch in colder zones to protect from freeze.
  • Planting Depth: 4-6 inches deep.
  • Fertilization: Apply balanced fertilizer in spring.
  • Special Care: Avoid excessive watering during dormancy.
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