When should I plant 琉璃苣 in Zone 4a?

Direct sow 琉璃苣 outdoors around 4月21日. Expect first harvest around 6月15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.

Yes. 琉璃苣 needs 55 days to harvest. Zone 4a has a 149-day growing season, which is sufficient.

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

Outdoor

Harvest

4月21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55 天

日照全日照

Direct sow 琉璃苣 seeds outdoors around 4月21日. Wait until soil temperature reaches 50F. Space plants at 18/m².

First harvest approximately 6月15日 (~55 天 from planting). Continue harvesting until first frost (10月1日).

✅ 草莓✅ 番茄✅ 南瓜✅ 黄瓜

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

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