Purple Glazer

Family: Amaryllidaceae Vegetable

Planting Schedule

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Aromatic and boldly complex, Purple Glazer hardneck garlic opens with a velvety purple sheen that deepens as bulbs mature—then delivers a rich, savory bite with a lingering warmth.

Expect medium-to-large bulbs with tight, glossy cloves and a smooth, satin-like texture that roasts beautifully for a mellow, caramel-kissed finish. Grow Purple Glazer for dependable, long-season performance and a standout bulb that turns every harvest into a statement.

Light: Full SunMaturity: 240 DaysHabit: Bulbing

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Purple Glazer Planting Dates by USDA Zone

Estimated US hardiness-zone windows for sow, transplant, and harvest. Enter a US ZIP above for exact local dates, or open a zone below.

Zone	Start Indoors	Sow / Transplant	Harvest
Zone 1a	Protected Environment Only
Zone 1b	Protected Environment Only
Zone 2a	Protected Environment Only
Zone 2b	Protected Environment Only
Zone 3a	Protected Environment Only
Zone 3b	Protected Environment Only
Zone 4a	Protected Environment Only
Zone 4b	Protected Environment Only
Zone 5a	Protected Environment Only
Zone 5b	Protected Environment Only
Zone 6a	Protected Environment Only
Zone 6b	Protected Environment Only
Zone 7a	Protected Environment Only
Zone 7b	Protected Environment Only
Zone 8a	Protected Environment Only
Zone 8b	Protected Environment Only
Zone 9a	Direct Sow	Mar 6th	Nov 1st – Nov 26th
Zone 9b	Direct Sow	Feb 9th	Oct 7th – Dec 9th
Zone 10a	—	Oct 1st	Feb 28th – Feb 28th
Zone 10b	—	Oct 1st	Feb 28th – Feb 28th
Zone 11a	—	Oct 1st	Feb 28th – Feb 28th
Zone 11b	—	Oct 1st	Feb 28th – Feb 28th
Zone 12a	—	Oct 1st	Feb 28th – Feb 28th
Zone 12b	—	Oct 1st	Feb 28th – Feb 28th
Zone 13a	—	Oct 1st	Feb 28th – Feb 28th
Zone 13b	—	Oct 1st	Feb 28th – Feb 28th

Crop Details

Trait	Value
Days to Maturity	240
Sun Requirements	Full Sun
Growth Habit	Bulbing
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	50
Min Soil Temp (°F)	45
Min Night Temp (°F)	28
Harden Off (days)	Not Required

Culinary Notes

Chef's Note

Purple Glazer is a hardneck with heat that behaves well: raw it hits with a confident sting, but roast it and the cloves collapse into a smooth, jammy sweetness. Choose it when you want garlic that stays aromatic and savory instead of going sharp or soapy in a hot pan.

Best Uses

roasting whole heads until jammy for caramel-kissed spread
slow-simmered garlic confit or oil infusion for silky, sweet heat
minced raw or lightly sautéed into emulsions and pan sauces for bright pungency
thin-sliced quick-pickling for crisp garlic snap and tangy bite

Flavor Profile

rich savory bite with lingering warmth bold garlicky aroma that turns sweet when roasted velvety, satin-like clove texture that mellows under heat clean, savory finish without turning harsh

Kitchen Pairings

olive oil butter parmesan lemon black pepper rosemary

Frequently Asked Questions

What’s a common disease problem for Allium sativum (purple garlic) and how can I address it?

Purple garlic commonly suffers from white rot (Sclerotium cepivorum), which causes white fungal growth at the base and sudden yellowing and collapse. To reduce risk, plant only healthy bulbs, avoid planting where onions/garlic were grown in the past, and improve drainage because waterlogged soil worsens disease. If you see diseased plants, remove them with surrounding soil and do not replant in that spot for several years.

How often should I water Allium sativum during the main growing phase, and what soil moisture level is ideal?

During active bulb building, keep soil consistently lightly moist but never soggy—aim for about 1 inch (2.5 cm) of water per week depending on rainfall and your soil’s drainage. Water deeply when the top 1–2 inches (2.5–5 cm) of soil dry out, then let it partially dry before the next watering. Stop regular watering in late season as tops begin to yellow so bulbs cure properly.

How do I tell when purple garlic (Allium sativum) is ready to harvest?

Harvest when the lower leaves are mostly dry and yellow but several green leaves still remain, typically around 240 days from planting for your crop. Bulbs should feel fully formed when you gently lift one bulb—cloves will be distinct and the papery wrapper should be developed. After harvesting, cure bulbs in a shaded, airy place for 2–3 weeks before storing.