ニンニク illustration 🧄

🧄 の栽培 ニンニク ゾーン 4a

Zone 4a has cold winters and a moderate growing season. Timing is key for ニンニク in this zone. Last frost: May 15. First frost: Sep 22.

Season Too Short

ニンニク needs 240 days to harvest, but Zone 4a has only a 130-day growing season. Consider short-season varieties or season extension techniques (cold frames, row covers).

Zone4a
Last FrostMay 15
First FrostSep 22
Season130 days
Harvest240 days
SunFull Sun

When to Plant ニンニク in Zone 4a

Sow Seeds Outdoors: Apr 3

Direct sow ニンニク seeds outdoors around Apr 3. Soil temperature should be at least 35°F. Space at 9/sqft (4" apart).

Harvest: Nov 29

First harvest approximately Nov 29 (~240 days from planting). Continue harvesting until first frost (Sep 22). ニンニク can overwinter in mild climates for continued harvest.

Fall Planting: Aug 11

For a fall harvest, plant ニンニク around Aug 11 (6 weeks before first frost).

Companion Planting

✅ Tomatoes✅ Roses✅ Fruit Trees✅ Strawberries✅ Beets✅ Peppers
❌ Beans❌ Peas❌ Sage

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Track ニンニク from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

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