Allium moly

Description

Allium moly – golden garlic

Botanical name: Allium moly
Common names: Golden garlic, yellow onion, lily leek
Family: Amaryllidaceae
Plant type: Bulbous perennial
Habit: Clump-forming, upright
Pot size: 1 litre pot
Eventual size: Approx. 25–35cm tall × 10cm spread per bulb; clumps up over time
Foliage: Grey-green, strappy leaves; dies back after flowering
Flowers: Loose heads of bright yellow, star-shaped flowers, early summer (May–June)
Scent: Faint onion scent when crushed
Aspect / light: Full sun to light shade
Soil: Well-drained; poor to average; any pH
Hardiness: RHS H5 (hardy, to about −15°C); USDA zones 3–9
Exposure: Open, sunny; tolerant
Native range: Southern Europe
Toxicity / pet & child safety: Toxic to cats and dogs — like all onions and garlic, alliums can cause serious harm to pets if eaten

Allium moly is a cheerful, easy bulb producing loose heads of bright yellow star-shaped flowers in early summer above grey-green strappy leaves. It naturalises happily in sun or light shade, ideal for borders, rockeries and gravel.

GardenAdvice notes

A hardy, clump-forming ornamental onion from southern Europe, golden garlic is one of the few alliums with truly yellow flowers, carried in loose, starry heads in early summer. Easy and undemanding, it multiplies steadily to form generous clumps and naturalises well in a sunny or lightly shaded spot.

Growing & planting

Plant the bulbs in autumn in well-drained soil in full sun or light shade, setting them about 8–10cm deep and 10cm apart. It is happy in poor soils and naturalises freely, so choose a spot where it can spread. Excellent in borders, rockeries, gravel and beneath deciduous shrubs.

Care & maintenance

Very easy. Allow the foliage to die down naturally after flowering so the bulbs build up for next year, and leave clumps undisturbed to multiply. Lift and divide congested clumps only when flowering declines. No feeding is usually needed.

Propagation

• Division: Lift and divide congested clumps as the foliage dies down, separating the bulbs and replanting.
• Offsets: Detach naturally produced offset bulbs when dividing and replant.
• Seed: Self-seeds gently; sow seed in autumn if increasing deliberately.

Pests & diseases

Generally trouble-free. Allium leaf miner and onion white rot can occasionally affect ornamental alliums, and bulbs may rot in wet, poorly drained soil. Good drainage is the best prevention.

Uses in the garden

Ideal for sunny borders, rockeries, gravel gardens and naturalising in grass or beneath deciduous shrubs, where the bright yellow flowers stand out in early summer.

Wildlife value

The nectar-rich flowers are attractive to bees and other pollinating insects.

Toxicity & safety

Like all onions and garlic, Allium moly is toxic to cats and dogs — eating alliums can cause serious harm to pets. Site it where pets are unlikely to dig up and chew the bulbs or foliage.

GardenAdvice tip

Golden garlic is one of the easiest alliums to naturalise, so plant it where it can spread and colonise — a sunny bank, gravel area or the front of a border. Leave the foliage to die back fully rather than cutting it early, as the bulbs use it to build up strength for an even better display next year.

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