Allium Purple Sensation Bulbs - 15 Pack

Allium Purple Sensation is a vigorously growing perennial that produces vibrant purple spherical f...

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B&QB&Q - 10 X Allium Purple Sensation BulbsSummer FloweringUk Hardy Pollinator FriendlyGrow In BedsBorders & Patio Pots
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Product Information

Full details

The Allium Purple Sensation is ideal for gardeners seeking a low-maintenance, perennial showstopper that brings vertical interest to flower beds and borders from late spring to early summer. These bulbs offer the key benefit of vibrant, pollinator-friendly spherical blooms that return annually and improve in quality each season, though gardeners should note they require well-draining soil to prevent bulb rot during the dormant winter months. This 15-pack is perfect for establishing clumps in patio pots or adding structural height to mixed garden borders.

All features

Model Part NumberALIUMPURPSEN-15
BrandCarbeth Plants

Extended Product Information

FAQs

When is the best time to plant these bulbs?

These bulbs should be planted in the Autumn to allow them to establish roots before the ground freezes.

Can I leave them in the ground over winter?

Yes, they are fully hardy and prefer to be left in the ground to naturalize and return the following year.

Do I need to stake them?

Generally, no. Allium Purple Sensation stems are quite sturdy, but if you live in an exceptionally windy, exposed area, you might consider a small garden support.

Are they safe for pets?

Alliums belong to the onion family and can be toxic if ingested in large quantities by cats and dogs. It is best to plant them in areas inaccessible to curious pets.

How deep should I plant the bulbs?

Plant the bulbs at a depth of roughly twice the height of the bulb, which is typically 10-15 cm deep.

Do they multiply?

Over time, established bulbs will produce 'offsets' or baby bulbs, which can be lifted and divided every few years if they become too crowded.

Troubleshooting

Bulbs failing to sprout

Often caused by waterlogged soil. Ensure the planting site has excellent drainage and avoid heavy, clay-rich areas without grit amendments.

Flowers are smaller than expected

This may occur in the first year as bulbs establish. They typically grow larger and more vigorous with each subsequent year in the same location.

Foliage looks untidy after flowering

Plant low-growing perennials like hardy Geraniums or Nepeta around the base of the Alliums to mask the foliage as it naturally fades.

Pros and Cons

Pros

  • High structural impact in garden borders
  • Excellent for supporting local pollinators
  • Reliable perennial that returns annually
  • Easy to grow for gardeners of all skill levels

Cons

  • Requires well-draining soil to avoid rot
  • Specific late spring to early summer blooming window
  • Needs a sunny location for optimal performance

Setup, Compatibility & Care

To ensure your Alliums thrive, plant the bulbs in Autumn in a sunny, well-draining spot. Dig a hole approximately 10-15 cm deep, ensuring the pointed end is facing upwards. If your soil is heavy or prone to waterlogging, add a handful of horticultural grit to the base of the planting hole to improve drainage.

  • Spacing: Space bulbs 15-20 cm apart to allow for proper airflow.
  • Feeding: Apply a general-purpose fertilizer in early spring as new green shoots appear.
  • Aftercare: Allow the foliage to die back naturally after flowering; this helps the bulb store energy for the following season. You can trim the stems once they turn yellow or brown.

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