Growing Shepherd's Purse in Zone 4b
Zone 4b has cold winters and a moderate growing season. Timing is key for Shepherd's Purse in this zone. Last frost: May 1. First frost: Oct 5.
Planting Calendar
Season: May 1 – Oct 5 (157 days)
When to Plant Shepherd's Purse in Zone 4b
Sow Seeds Outdoors: Mar 20
Direct sow Shepherd's Purse seeds outdoors around Mar 20. Soil temperature should be at least 35°F. Space at 16/sqft (3" apart).
Harvest: May 4
First harvest approximately May 4 (~45 days from planting). Continue harvesting until first frost (Oct 5). Shepherd's Purse can overwinter in mild climates for continued harvest.
Fall Planting: Aug 10
For a fall harvest, plant Shepherd's Purse around Aug 10 (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 4b?
Direct sow Shepherd's Purse outdoors around Mar 20. Harvest around May 4.
What is the last frost date for Zone 4b?
The average last spring frost date for Zone 4b is May 1. The first fall frost averages Oct 5, giving a 157-day growing season.
Can I grow Shepherd's Purse in Zone 4b?
Yes. Shepherd's Purse needs 45 days to harvest. Zone 4b has a 157-day growing season, which is sufficient.
What is the best month to plant Shepherd's Purse in Zone 4b?
The best time to plant Shepherd's Purse in Zone 4b is around Mar 20, 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 4b, expect your first harvest around May 4.
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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