When should I plant 薄荷 in Zone 4a?

Start 薄荷 seeds indoors around 3月10日. Transplant outdoors after 4月21日. Expect first harvest around 6月20日.

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is 5月5日. The first fall frost averages 10月1日, giving a 149-day growing season.

Can I grow 薄荷 in Zone 4a?

Yes. 薄荷 needs 60 days to harvest. Zone 4a has a 149-day growing season, which is sufficient.

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🍃 种植薄荷区域 4a

Zone 4a has cold winters and a moderate growing season. Timing is key for 薄荷 in this zone. 末次霜冻: 5月5日. 初次霜冻: 10月1日.

Planting Calendar

Indoor

Outdoor

Harvest

3月10日10月1日

Season: 5月5日 – 10月1日 (149 天)

区域4a

末次霜冻5月5日

初次霜冻10月1日

生长季149 天

收获60 天

日照半日照

When to Plant 薄荷 in Zone 4a

Start Seeds Indoors: 3月10日

Start 薄荷 seeds indoors around 3月10日 (8 周(最后霜冻前)). Optimal germination temperature: 70F. Germinates in 10-16 days.

Transplant Outdoors: 4月21日

Transplant 薄荷 seedlings outdoors after 4月21日. Wait until soil temperature reaches 50F. Space plants at 1/m² (30cm 间距). Harden off plants for a week before moving outside.

Harvest: 6月20日

First harvest approximately 6月20日 (~60 天 from transplant). Continue harvesting until first frost (10月1日). 薄荷 can overwinter in mild climates for continued harvest.

伴生植物

✅ 卷心菜✅ 番茄

❌ 洋甘菊

薄荷其他区域

1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13b

规划花园薄荷

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

Start Free 薄荷 Growing Guide

🍃 种植 薄荷 区域 4a