Northern White

Garlic

210d to harvest

Northern White hardneck garlic unfurls with a clean, luminous presence—bulbs clothed in pale, parchment-white skins that feel crisp and substantial in the hand. Expect bold, aromatic flavor with a bright snap and a lingering savory depth, plus cloves that roast to a silky, spreadable tenderness. A standout for home growers seeking dependable cool-season performance and a reliable harvest at about 210 days, Northern White shines in sauces, infused oils, and pickling for a distinctly fragrant finish.

Crop Dates

Growing note: In frost-free Zone 13b, grow this cool-season crop during the cooler dry season (October–February).

Milestone	Date
Start Indoors	—
Climate	Frost-Free Climate
Transplant / Sow Outdoors	Oct 1st
Harvest Begins	Feb 28th
Harvest Ends	Feb 28th

Crop Details

Trait	Value
Days to Maturity	210
Sun Requirements	Full Sun
Growth Habit	Bulbing
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	50
Min Soil Temp (°F)	40
Min Night Temp (°F)	28
Harden Off (days)	Not Required

Frequently Asked Questions

How do I prevent and treat white rot in Allium sativum (garlic)?

White rot (Sclerotium cepivorum) causes yellowing, wilting, and often a white fungal growth with rotting roots near the soil line. Remove and discard infected plants, then avoid planting garlic/onions in the same spot for 5–7 years because the fungus can persist in soil. If you have had it before, plant into well-drained beds and mulch lightly to keep soil from staying constantly wet around the bulbs.

How often should I water Allium sativum during the main growing season, and what soil moisture level should I aim for?

From spring growth through bulb sizing, water deeply about 1–2 times per week only when the top 1 inch of soil is dry, keeping the root zone consistently moist but not waterlogged. Aim for steady moisture because garlic forms larger bulbs when soil doesn’t swing between very dry and saturated. Stop routine watering about 3–4 weeks before harvest so wrappers can dry down and bulbs cure properly.

How can I tell when Northern White garlic (Allium sativum) is ready to harvest?

Harvest when the lower leaves have yellowed and dried while the top 3–4 leaves still look green, usually around 210 days from planting in typical conditions. Check bulbs by gently lifting one—ready bulbs should have fully formed cloves with tight, papery skins. Don’t wait until all leaves are brown, because bulbs can split and store less well.