Growing Shepherd's Purse in Zone 3b
Zone 3b has harsh winters and a short growing season. Start Shepherd's Purse early indoors to maximize your harvest window. Last frost: May 15. First frost: Sep 22.
Planting Calendar
Season: May 15 – Sep 22 (130 days)
When to Plant Shepherd's Purse in Zone 3b
Sow Seeds Outdoors: Apr 3
Direct sow Shepherd's Purse seeds outdoors around Apr 3. Soil temperature should be at least 35°F. Space at 16/sqft (3" apart).
Harvest: May 18
First harvest approximately May 18 (~45 days from planting). Continue harvesting until first frost (Sep 22). Shepherd's Purse can overwinter in mild climates for continued harvest.
Fall Planting: Jul 28
For a fall harvest, plant Shepherd's Purse around Jul 28 (8 weeks before first frost).
Shepherd's Purse 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 Shepherd's Purse in Zone 3b?
Direct sow Shepherd's Purse outdoors around Apr 3. Harvest around May 18.
What is the last frost date for Zone 3b?
The average last spring frost date for Zone 3b is May 15. The first fall frost averages Sep 22, giving a 130-day growing season.
Can I grow Shepherd's Purse in Zone 3b?
Yes. Shepherd's Purse needs 45 days to harvest. Zone 3b has a 130-day growing season, which is sufficient.
What is the best month to plant Shepherd's Purse in Zone 3b?
The best time to plant Shepherd's Purse in Zone 3b is around Apr 3, when soil temperatures are suitable and frost risk has passed.
How long does Shepherd's Purse take to harvest?
Shepherd's Purse takes approximately 45 days from planting to harvest. In Zone 3b, expect your first harvest around May 18.
Plan Your Shepherd's Purse Garden
Track Shepherd's Purse from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
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