Golden Garlic (Allium moly)
2 sources cited · Verified
The short answer
- Plant
- Early March to early September
- Site
- 6+ hours of sun, soil pH 6–7.5
- Biggest risk
- Allium white rot
In the UK, golden garlics go in the ground early March to early September.
Golden garlics (Allium moly) — bulbous herbaceous perennial.
Timing is the decision that matters most in the UK: there are 4 separate regional sowing windows, ranging from early March in Southern England to early March in Scotland.
Core growing advice on this page is checked against named horticultural and university-extension sources — see References.
Regional Planting Calendar
| Region | Sow |
|---|---|
| Southern England | early March to early September |
| Midlands | early March to early September |
| Northern England | early March to early September |
| Scotland | early March to early September |
Southern England - detail & sources
Neither source gives region-specific UK dates; RHS gives a UK-wide hardiness rating (H6, hardy in all of the UK) with no frost-chasing urgency described for this hardy perennial, so one window is applied across all four sub-regions rather than inventing a north/south gradient the sources do not support.
Midlands - detail & sources
Neither source gives region-specific UK dates; RHS gives a UK-wide hardiness rating (H6, hardy in all of the UK) with no frost-chasing urgency described for this hardy perennial, so one window is applied across all four sub-regions rather than inventing a north/south gradient the sources do not support.
Northern England - detail & sources
Neither source gives region-specific UK dates; RHS gives a UK-wide hardiness rating (H6, hardy in all of the UK) with no frost-chasing urgency described for this hardy perennial, so one window is applied across all four sub-regions rather than inventing a north/south gradient the sources do not support.
Scotland - detail & sources
Neither source gives region-specific UK dates; RHS gives a UK-wide hardiness rating (H6, hardy in all of the UK) with no frost-chasing urgency described for this hardy perennial, so one window is applied across all four sub-regions rather than inventing a north/south gradient the sources do not support.
Quick Facts
| Factor | Value |
|---|---|
| Soil pH | 6 - 7.5 |
| Sunlight | 6-6 hours direct sun |
| Soil texture | chalk, loam or sand (RHS) |
| Drainage | well-drained |
| Lifecycle | bulbous herbaceous perennial |
| Edible parts | leaves, bulbs |
At a Glance
Soil & Growing Conditions
Water: moist but well-drained or well-drained (RHS); dry summers, wet mild winters preferred (Gardener's Path)
Soil pH range
Span reflects genuine variation between the cited authorities, not a single agreed figure.
Growth Stages
| Stage | BBCH | Notes |
|---|---|---|
| Propagation | 0 | Sow seed in containers in a cold frame when just ripe or in spring, or divide established clumps in spring (RHS). |
| Establishment | 3 | Low-growing, clump-forming bulb with narrow, strap-shaped grey-green basal leaves; full sun, well-drained soil (RHS). |
| Flowering | 6 | Summer: bright yellow, upward-facing star-shaped flowers on stems to 25cm tall (RHS). |
| Naturalising / dieback | 9 | Naturalises easily in borders, rockeries and woodland clearings (Gardener's Path); remove old flowered stems and foliage as the only maintenance (RHS). |
Harvest & Storage
When to pick: Grown primarily as an ornamental bulb; leaves and bulbs are edible but the plant is chiefly valued for its bright yellow star-shaped summer flowers and its ease of naturalising in borders, rockeries and woodland clearings (Gardener's Path).
Diseases
Pests
Golden Garlic, Shoot to Bloom
References
-
Allium moly, also called golden garlic or lily leek, is native to a range stretching from eastern Spain to Italy and parts of North Africa. Low-growing and clump-forming, it adapts well to borders, rockeries and woodland clearings, where it naturalises easily. Thrives in a Mediterranean-type climate of dry, hot summers and wet, mild winters.
-
Hardiness H6 (hardy in all of UK and northern Europe, -20 to -15C). Full sun; south or west-facing aspect. Soil: chalk, loam or sand; moist but well-drained or well-drained; pH acid/alkaline/neutral. Height 0.1-0.5m, spread 0.1-0.5m. Time to maturity 1-2 years. Narrow, strap-shaped grey-green basal leaves; bright yellow, upward-facing star-shaped flowers on stems to 25cm tall during summer. Propagate by seed sown in containers in a cold frame when just ripe or in spring, or by division of clumps in spring. Grow in full sun with fertile, well-drained soil; container growing recommended for heavy clay soils prone to winter saturation. PESTS: susceptible to allium leaf miner and onion fly. DISEASES: may develop onion white rot and onion downy mildew -- named directly for this species, not inferred. Maintenance: remove old flowered stems and foliage only.
2 independent sources are cited for this crop. Where they disagree - soil pH is the clearest case - every figure is preserved rather than averaged into false precision.
Frequently Asked Questions
When should I sow golden garlics in the UK?
In Southern England, from early March. In Scotland, wait until early March. Treat these as a guide rather than a fixed date — the governing rule is to sow only once frost risk has passed and temperatures are reliably warm enough.
When do I sow golden garlics?
Sow early March to early September.
What soil pH do golden garlics need?
A pH of about 6–7.5. That span reflects genuine variation between the authorities we cite rather than a single agreed figure — the References section lists each source's exact range.
What problems affect golden garlics?
Our data links 2 diseases and 2 pests to this crop. See the sections above for each one and how to manage it.
Plan next season before the problems start
Most of the advice on this page comes down to timing and spacing — sowing at the right moment, rotating beds, and giving plants enough airflow. The UK Garden Planner lays your plot out month by month so those decisions are already made before the season starts.
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Last verified 2026-08-28
Where To Go From Here
Take this crop from reading into a written plan for your own beds.
Plan the next step
Use the printable SoilCommander planner for your region to turn this guide into sowing dates, bed layouts and weekly garden tasks.