Glory of the snow

Sun

Full sun to partial shade; suitable beneath deciduous trees that leaf out after flowering.

Water

Moderate moisture while growing in spring; little extra water once dormant. Avoid persistently wet soil.

Soil

Well-drained soil with some organic matter; tolerates chalk, loam and sandy soils, but struggles in waterlogged clay.

Height

0.3-0.5 ft (0.1-0.15 m)

Spread

0.2-0.3 ft (0.05-0.1 m) per bulb; colonies spread farther through offsets and seed.

Flowers

Early spring; blue flowers with distinct white centres, carried in small, upright clusters.

Foliage

A few narrow, strap-shaped green leaves emerge with the flowers, then yellow and die back by early summer.

Growth

Moderate; established colonies can increase steadily through self-seeding.

Care needed

Low

• Pollinators
• Cold hardy
• Low allergen

Northern hemisphere months. In Australia, shift them by six.

Difficulty

Easy

Toughness

Very tough

Pick your zone, country, light and whether you have pets.

1. Planting day

   0.4 ft (0.13 m)

   full size

About 1 years to full size.

From a typical nursery size, at an average rate for this kind of plant. A rule of thumb, not a forecast.

Cats and dogs

Toxic

In the garden

Spreads vigorously: plan to contain it.

Growth rate

Moderate

• Plant bulbs in autumn, about 3 in (8 cm) deep and 2-3 in (5-8 cm) apart.
• Water after planting and during unusually dry weather while leaves are green.
• Top-dress poor soil with a thin layer of compost in autumn; routine feeding is usually unnecessary.
• Leave foliage intact until it yellows naturally, and delay mowing naturalised areas until then.
• Lift and separate crowded clumps after the leaves yellow, replanting offsets promptly.
• Remove fading flower stems before seed capsules ripen if you want to limit spread.

Pruning. No regular pruning is needed. Remove leaves only after they have turned yellow and died back; deadhead after flowering if seedlings are unwanted.

Early autumn

Choose a well-drained site and plant dormant bulbs.

Late autumn

Clear thick mats of fallen leaves that could smother emerging shoots.

Early spring

Water during prolonged dry spells while plants are flowering and actively growing.

Mid-spring

Remove spent flower stems before seed ripens if you do not want the colony to expand.

Late spring

Allow foliage to yellow fully before mowing or clearing it away.

Early summer

Divide crowded clumps as foliage dies back, and avoid watering the dormant planting area unnecessarily.

• Plant in loose drifts beneath deciduous trees for colour before the canopy closes.
• Naturalise in short grass where mowing can wait until the bulb leaves die back.
• Use beside paths or at the front of borders where the small flowers are easy to see.
• Combine with later-emerging hostas or hardy geraniums that cover the space after the bulbs become dormant.
• Mix with snowdrops, crocuses and miniature daffodils for a sequence of early flowers.

Garden styles it suits: Woodland, Cottage garden, English country, Low-maintenance, Alpine rock garden and Blues and silvers.

Plant it with: Snowdrops, Crocuses, Miniature daffodils, Hellebores, Hostas and Hardy geraniums.

Wildlife: Early flowers provide pollen and nectar for bees active during mild spring weather. Ants may help disperse the seeds.

• Bulb rot in waterlogged soil: improve drainage or move bulbs to a raised planting area; discard soft, rotting bulbs.
• Slugs and snails damaging emerging leaves and flowers: check plants during damp weather and use barriers or locally approved controls if damage is significant.
• Poor flowering after premature mowing or cutting: leave green foliage intact so bulbs can replenish their reserves.
• Unwanted seedlings among other plants: remove flower stems before seed ripens and lift stray bulbs while their leaves are visible.

Treat all parts, especially the bulbs, as poisonous to people, cats, dogs and horses. Ingestion can cause vomiting, diarrhoea and abdominal pain; potentially serious poisoning is a concern with squills, although species-specific information for Scilla forbesii is limited. Seek medical or veterinary advice after ingestion, and wear gloves if handling bulbs irritates your skin.

Where it spreads. Can self-seed freely and form spreading colonies in lawns and woodland gardens, including in parts of the northeastern United States and southern Canada. Naturalisation does not necessarily mean it is officially listed as invasive; check local guidance before planting near natural woodland.

• Lucile's glory-of-the-snow (Scilla luciliae)

  Usually has fewer, larger flowers per stem, often one to three, with a broad white centre. Scilla forbesii generally carries more flowers in a taller cluster; trade names are often confused.

• Lesser glory-of-the-snow (Scilla sardensis)

  Has deeper blue flowers with only a tiny pale centre rather than the conspicuous white eye of Scilla forbesii.

• Siberian squill (Scilla siberica)

  Its flowers usually hang downward like small blue bells, rather than facing upward or outward as open stars.

The common name refers to its very early flowering, sometimes beside melting snow in its native mountain habitats.

Propagation. Separate bulb offsets as the foliage dies back and replant promptly. Alternatively, sow fresh ripe seed outdoors; seedlings usually take several years to flower and may differ from the parent, especially where related species grow nearby.

Accepted botanical name

Scilla forbesii

Native range

Turkey.

Measured

Average height 23 cm.

Sources: GBIF (CC BY 4.0) and Trefle (CC BY 4.0). The care and design notes are LandscapeGPT's own.