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🌿 Growing Cilantro in Zone 4a
Zone 4a has cold winters and a moderate growing season. Timing is key for Cilantro in this zone. Last frost: May 5. First frost: Oct 1.
Planting Calendar
Season: May 5 – Oct 1 (149 days) · Succession: plant every 2 weeks (up to 8x)
When to Plant Cilantro in Zone 4a
Sow Seeds Outdoors: Apr 21
Direct sow Cilantro seeds outdoors around Apr 21. Soil temperature should be at least 50°F. Space at 4/sqft (6" apart).
Harvest: May 21
First harvest approximately May 21 (~30 days from planting). Continue harvesting until first frost (Oct 1).
Fall Planting: Aug 20
For a fall harvest, plant Cilantro around Aug 20 (6 weeks before first frost).
Companion Planting
Cilantro in Other Zones
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 13bFrequently Asked Questions
When should I plant Cilantro in Zone 4a?
Direct sow Cilantro outdoors around Apr 21. Harvest around May 21.
What is the last frost date for Zone 4a?
The average last spring frost date for Zone 4a is May 5. The first fall frost averages Oct 1, giving a 149-day growing season.
Can I grow Cilantro in Zone 4a?
Yes. Cilantro needs 30 days to harvest. Zone 4a has a 149-day growing season, which is sufficient. You can plant up to 8 successions.
What is the best month to plant Cilantro in Zone 4a?
The best time to plant Cilantro in Zone 4a is around Apr 21, when soil temperatures are suitable and frost risk has passed.
What companion plants grow well with Cilantro?
Good companion plants for Cilantro include Tomatoes, Peppers, Beans, Peas, Spinach. Avoid planting Cilantro near Fennel, Dill.
How long does Cilantro take to harvest?
Cilantro takes approximately 30 days from planting to harvest. In Zone 4a, expect your first harvest around May 21.
Plan Your Cilantro Garden
Track Cilantro from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
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