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Purple Sensation Allium Bulb

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  • - Height: 20-30 inches
  • - Hardiness Zone: 3-8
  • - Exposure: Full Sun
  • - Bloom Time: May-June
Plant Features

Purple Sensation Allium Bulbs (Allium aflatunense) bring beautiful, perfect violet-purple 'balls' make up of 100's of star-shaped blooms that sit atop long green stems. Sometimes called Persian Onion, they are fragrant, easy to grow, make excellent cut flowers and are a pollinators dream. This striking beauty tolerates heat and drought while deer and rabbits tent to avoid them. Recommended spacing for fall planted Purple Sensation Allium bulbs is 3 inches apart at a depth of 5 inches.

Planting Instructions:

  • - Plant Purple Sensation allium bulbs in the fall, approximately 4-6 weeks before the first hard frost.
  • - Choose a sunny location that receives at least 6 hours of direct sunlight daily for optimal growth.
  • - Prepare the soil by loosening it to a depth of at least 12 inches, adding organic matter like compost to improve fertility and drainage.
  • - Plant the bulbs 6-8 inches deep with the pointed end facing upwards.
  • - Space bulbs 6-12 inches apart to allow for proper air circulation and growth.

Soil Preparation:

  • - Alliums prefer well-drained soil; amend heavy or clay soils with sand or peat to enhance drainage.
  • - Aim for a soil pH between 6.0 and 7.0 for optimal health and growth.

Watering Specifics:

  • - Water the bulbs thoroughly after planting to help settle the soil around them.
  • - Maintain consistent moisture during the growing season, particularly in dry periods.
  • - Reduce watering after the foliage has died back post-bloom, allowing the bulbs to go dormant.

Fertilizer Type:

  • - Use a balanced, slow-release fertilizer at planting time to support healthy growth.
  • - A second application in early spring, as the alliums begin to emerge, can enhance their vigor.
  • - Avoid high-nitrogen fertilizers, as they can lead to excessive leaf growth at the expense of blooms.

Pruning and Care:

  • - Deadhead spent flowers promptly to prevent seed formation, directing energy back to the bulb.
  • - Allow foliage to die back naturally to nourish the bulb for next year's bloom.
  • - Once the leaves have turned completely yellow, they can be removed to maintain a tidy garden.

Pest Management:

  • - Alliums are generally resistant to pests, but watch for aphids or onion flies.
  • - Insecticidal soap or neem oil can be used if pests are detected.
  • - Ensure good air circulation around the plants to prevent fungal diseases.

Blooming Indicators:

  • - Purple Sensation alliums typically bloom in mid to late spring, producing large, round clusters of vibrant purple flowers.
  • - The blooms generally last about 2-3 weeks, depending on environmental conditions.
  • - The plants usually grow 24-30 inches tall, making them ideal for borders, mixed beds, or as focal points in the garden.

Light Requirements:

  • - Requires full sun for best results; they can tolerate light shade, but full sun yields better blooms.
  • - The more sunlight they receive, the healthier the plants will be and the brighter the flowers.

Temperature Tolerance:

  • - Hardy in USDA zones 4-9.
  • - Alliums require a cold dormancy period during winter to ensure proper blooming in spring.

Companion Plants for Purple Sensation Allium:

Attribute name Attribute value
Plant Characteristics
Mature Spread 1-2 feet
Habit Upright
Flower Color Purple
Foliage Color Green
Attracts Bees, Butterflies
Features Cut Flowers
Garden Styles Butterfly Garden, Container Garden, Cottage Garden, English Garden, Pollinator Garden
Plant Used for Aesthetic Appeal, Borders and Edging, Focal Point, Natural Pest Control, Texture
Pet Friendly No
Tolerates Sandy soil
Critter Resistance Deer Resistance: High
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