Plant allium bulbs from September to December. If needed, keep them in their open packets somewhere cool, dry and well ventilated until planting.
Allium 'Round 'n' Purple' produces extremely large blooms and is the perfect addition to the back of your border for a touch of sensational drama. When planted in groups, as with many statuesque alliums, the display is breath-taking and will certainly be taking point in your garden. Flowering on thick sturdy stems, Allium 'Round 'n' Purple's paler violet blooms, reaching a height from 90cm-1.2m, give the perfect landing pad to many varied pollinators, bees especially love them.
The dried flower heads make an architectural statement during winter and the seeds also make a useful food source for visiting birds. Allium 'Round 'n' Purple' are also great as cut flowers! This variety can be a little more tender and will benefit from a winter mulch and well-drained soil—the addition of some grit in the planting hole will ensure the bulb is not left sitting too wet. Plant in full sun for the best results and expect the round 'n' purple drama to begin around May to June!
Quantity
Plant profile
Plant calendar
Choose full sun or partial shade. Improve heavy soil with organic matter and horticultural grit. For containers, use peat-free multipurpose compost with good drainage.
Plant bulbs pointed side upwards, two to three times their own height deep. A slightly flattened side is perfectly normal and nothing to worry about.
Space small bulbs around 5cm apart. Larger bulbs need more room, generally around twice their own width apart, so their foliage and flowers can develop freely.
Water after planting if the soil is dry, then only when needed. After flowering, allow the foliage to die back naturally. Decorative seedheads can remain in place.
- Botanical name
- Allium 'Round 'n' Purple'
- Flower colour
- Purple, violet
- Bulb size
- 20/24
- Established height
- 1-1.2m
- Established spread
- 30-50cm
- Growing skill
- Easy to grow
- Habit
- Upright
- Hardiness
- Fully hardy
- Leaf colour
- Green
- Mouse resistant
- Yes
- Plant spacing
- 25 bulbs per m2
- Pollinator friendly
- Yes
- Position
- Sheltered
- Rabbit resistant
- Yes
- RHS Award (AGM)
- Yes
- Scented
- No
- Soil acidity
- Any
- Soil moisture
- Free draining
- Soil type
-
Loam
Sandy
Clay
Stony
Multipurpose compost - Suitable for
-
Large containers
Borders
Gravel gardens
Wildlife gardens
Cottage gardens
Low maintenance gardens
Cut flower gardens - Sunlight
- Full sun
- Toxicity
- Skin/eyes irritant
- Years to establish
- 1st year
Allium 'Round 'n' Purple' reviews
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Our horticulturalists prepare every bulb and plant with the utmost care. From selection to packing, each one receives expert attention before beginning its journey to your garden.