Muscari 'Cool Blues'

Delivery begins from 14 September 2026
Spring flowering bulbs and plants are scheduled to begin delivery from 14 September 2026.

25 bulbs
£5.29
£0.21 each
50 bulbs
£10.29
£0.21 each
Save 3%
250 bulbs
£49.89
£0.20 each
Save 6%

Delivery begins from 14 September 2026

Carbon-Neutral Delivery

Our "Bloom or Bust" Promise

Cool Blues, often admired for its cool blue colouring, is a bulb variety especially well suited to borders.

Muscari 'Cool Blues' is a particularly refined grape hyacinth, valued for its cool-toned spring colour and neat, clump-forming habit. Slender green foliage rises to carry densely packed, bell-shaped flower spikes—an elegant detail at the very moment the garden begins to wake.

Thread it through the front of borders, edge a path with gentle repetition, or tuck into containers where the colour can be appreciated up close. It pairs beautifully with tulips and narcissus for a composed, early-season display, and also lends itself to naturalising in grass for an unforced, meadow-like finish.

  • Colour: Cool blue
  • Flowering: March–May
  • Height: 15–20cm
  • Spread: 10–15cm
  • Bulb size supplied: 6/7
  • Position: Borders, containers, rockeries; ideal for naturalising in grass
Botanical name Muscari 'Cool Blues'
Flower colour Cool blue
Bulb size 6/7
Established height 15-20cm
Established spread 10-15cm
Plant spacing 8-10cm
Leaf colour Green
Habit Clump-forming
Life cycle Perennial
Hardiness Fully Hardy
Years to establish 2-3 years
Sunlight Full-Sun, Partial Sun
Position Borders, containers, rockeries; ideal for naturalising in grass
Suitable for Borders, Containers, Rockeries, Naturalising
Soil acidity Any
Soil moisture Moist but well-drained
Soil type Loam
RHS Award (AGM) No
Growing skill Easy
Pollinator-friendly Yes
Deer resistant Yes

Where to Plant:

Muscari 'Cool Blues' needs full-sun, partial sun and a warm, sheltered position for the best flowering. Plant into fertile, humus-rich soil that drains well, and choose a spot protected from strong winds, especially for taller varieties.

How to Plant:

Plant bulb from September to December once conditions are suitable. Set them at the correct depth for the variety, spacing 8-10cm apart where relevant, then firm in gently and water well after planting.

Aftercare:

Water regularly in dry weather and feed every two to three weeks once buds appear. Stake taller stems early and deadhead to keep plants flowering. After flowering, allow foliage to die back naturally before lifting or protecting bulb according to local conditions.

Planting and Flowering Calendar

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Planting
Flowering

Key Features

Packed in paper

Packed peat-free

Great for Shade

Attracts wildlife

Fragrant

Naturalising

Muscari 'Cool Blues' - Harding & Bloom

Muscari 'Cool Blues'

£5.29

£5.29

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Kind Words from Our Gardeners

Arrived quickly and well-packaged. Planted them in some pots on the patio and they all came up. Look beautiful. Thank you!

Careane Wallace

Oxfordshire, UK

The bulbs arrived beautifully packaged and you could just tell they were excellent quality. We had the most wonderful display of daffodils this spring on our patio. Simply stunning. Will definitely be ordering again

David P

Kent, UK

I ordered the mixed hyacinth collection and the scent in my garden this April was absolutely heavenly. Every single bulb produced a strong, beautiful flower and the colours were stunning together. A fantastic purchase, I'll be back for more next year!

Eleanor R

Somerset