When to Plant Garlic in Vermont
Plant in fall, harvest in summer. Garlic is one of the most rewarding crops for the patient gardener.
The Short Answer
Vermont Frost Dates
Your planting dates depend on which part of Vermont you're in. Here are the frost date ranges by region:
| Region | Zones | Last Frost (Spring) | First Frost (Fall) |
|---|---|---|---|
| Northern Vermont | 3b, 4a | May 20 - Jun 5 | Sep 5 - Sep 20 |
| Central Vermont | 4a, 4b, 5a | May 10 - May 25 | Sep 15 - Oct 1 |
| Southern Vermont | 4b, 5a, 5b | May 5 - May 20 | Sep 20 - Oct 5 |
Garlic Planting Schedule for Vermont
Northern Vermont (Zones 3b, 4a)
Average last frost: May 20 - Jun 5 · Average first frost: Sep 5 - Sep 20
Central Vermont (Zones 4a, 4b, 5a)
Average last frost: May 10 - May 25 · Average first frost: Sep 15 - Oct 1
Southern Vermont (Zones 4b, 5a, 5b)
Average last frost: May 5 - May 20 · Average first frost: Sep 20 - Oct 5
Growing Garlic in Vermont
Garlic in Vermont's Climate
Your cold winters are garlic's secret weapon. Hardneck varieties — the type with the best flavor and those coveted scapes — actually require prolonged cold (vernalization) to form proper bulbs. Plant cloves in October, 6 weeks before the ground freezes, and mulch heavily. The cloves root before winter, sleep under snow, and explode with growth in spring. Northern gardeners grow the best garlic in America because the cold is an asset, not a limitation.
Soil Considerations for Vermont
Rocky, acidic soils typical of New England. Glacial deposits. Thin mountain soils. Raised beds very popular. Loose, well-drained soil is especially important for garlic since the edible portion grows underground. If your soil is heavy clay, consider raised beds.
Vermont Climate & Growing Season
Short growing season. Cold winters. Cool summers. Long summer days help compensate. Season extension techniques valuable. Garlic can handle frost well, which is an advantage in Vermont's climate. You can push planting dates earlier in spring and extend into fall.
Growing season length varies across Vermont: Northern Vermont (3b, 4a) has a last frost around May 20 - Jun 5, while Southern Vermont (4b, 5a, 5b) sees frost end around May 5 - May 20. This difference matters for garlic — adjust your planting dates to match your specific region.
Growing Tips
Plant individual cloves pointy-side up in fall, 4-6 weeks before ground freezes. Mulch heavily. Harvest when lower leaves brown.
Companion Planting
Plant garlic alongside these companions for better growth:
Keep garlic away from:
The Bottom Line
Last reviewed: March 29, 2026