Bulbs

Ornamental onion 'Purple Sensation'

Allium hollandicum 'Purple Sensation'

Size
0.9 m tall, 0.2 m across
Light
Full sun
Hardy to
-30 degrees
Flowers
May to June
  • Border planting
  • Bees and butterflies
  • Goes upwards
  • Shape that holds through winter
Ornamental onion 'Purple Sensation'
An illustrative picture of the species, generated from its botanical name.

Safety

  • Eaten, it may upset a stomach.
  • Severely toxic to dogs. Verdlo leaves it out of a plan for a garden with a dog.
  • Severely toxic to cats. Verdlo leaves it out of a plan for a garden with a cat.

Reviewed and approved for Poland by a qualified gardener with thirty years of practice, 22 September 2026.

What it needs, what it becomes

Type
Bulbs
Family
Amaryllidaceae
Size when mature
0.9 m tall, 0.2 m across
Light
Full sun
Moisture
Dry, medium
Soil
sand, loam, chalk
Soil pH
6 to 7.5
Hardy to
-30 degrees
Flowers
May to June
For pollinators
Very good
Water
Low water
Upkeep
Little
Growth
Steady
In Europe
Introduced
Spreading risk
None known
If eaten
People: Can upset a stomach · Dogs: Severely toxic · Cats: Severely toxic

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