[data-breadcrumbs] { opacity: 1 !important; visibility: visible !important; } @media screen and (max-width: 767px) { [data-breadcrumbs] [data-breadcrumb-middle] { display: inline-flex !important; } [data-breadcrumbs] [data-breadcrumb-ellipsis] { display: none !important; } }

Close-up of purple allium flowers with a blurred green background

Allium caeruleum Bulbs

Botanical Name: Allium caeruleum

Bright blue globe-shaped flowers create an eye-catching early-summer display
Excellent for borders, cutting and pollinator-friendly planting
Size 5/6 bulbs flower from May to June

20 bulbsSKU: 46635

Sent within 5-7 working days

£0.48 each

£9.50

Buy with confidence - quality guarantee

High germination rates

Expert growing support available

DescriptionDetailsSow & GrowGrow InPlanting CalendarDelivery

Allium caeruleum Bulbs produce eye-catching rounded flower heads in a vivid blue, bringing a distinctive splash of colour to early-summer borders. Their neat globes sit above slender upright stems and combine beautifully with purple, white and silver-leaved plants.

Supplied as a pack of 20 bulbs, plants reach around 60cm (2ft) and flower from May to June. They are excellent for cutting and highly attractive to pollinators. Plant from September to November in free-draining soil in full sun.

Bulb size: 5/6
Bulb sizes are measured by circumference in centimetres. A 5/6 bulb measures approximately 5-6cm around. Larger bulbs generally contain more stored energy, helping to support strong growth and an impressive flowering display.

About our Bulbs
We work very closely with our growers to ensure we offer the very best, top sized bulbs which will provide you with a glorious autumn show. All of the bulbs we offer have been trialled and tested, either on our own trials ground, here in Suffolk, or on those of our growers, who we work with to ensure we offer the best range for British gardens.

Key information

Botanical Name: Allium caeruleum

Genus: Allium

Plant Class: Hardy Perennial

Characteristics & growing conditions

Plant Height: 60cm / 2ft

Colour: Blue

Habitat: Upright

Position: Full Sun

Attractive to: Attractive To Bees

Plant from September to November around 10-15cm deep in free-draining soil in full sun. Plant in groups through sunny borders or large containers for the strongest colour effect.

Recommended growing locations.

Border

Container

Patio

J Jan F Feb M Mar A Apr M May J Jun J Jul A Aug S Sep O Oct N Nov D Dec

Sow Indoors

J Jan F Feb M Mar A Apr M May J Jun J Jul A Aug S Sep O Oct N Nov D Dec

Sow Outside

J Jan F Feb M Mar A Apr M May J Jun J Jul A Aug S Sep O Oct N Nov D Dec

Flowers / Harvest

J Jan F Feb M Mar A Apr M May J Jun J Jul A Aug S Sep O Oct N Nov D Dec

Hassle-Free Delivery

Looking for a hassle-free way to get your gardening essentials? Look no further than DT Brown! We know how important your garden is to you, and want you to be able to stock up on everything you need. All our delivery charges will automatically appear in your shopping basket.

Seed Only Orders

£2.95 delivery charge

Non-Seed Items

£6.95 delivery charge

Combined Orders

£7.95 delivery charge (e.g. seeds and plants)