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🌿 Growing Parsley in Zone 4b

Zone 4b has cold winters and a moderate growing season. Timing is key for Parsley in this zone. Last frost: May 1. First frost: Oct 5.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 6Oct 5

Season: May 1 – Oct 5 (157 days)

Zone4b

Last FrostMay 1

First FrostOct 5

Season Length157 days

Days to Harvest70

SunPart Sun / Part Shade

Frost ToleranceModerate

Spacing4/sqft (6" apart)

When to Plant Parsley in Zone 4b

Start Seeds Indoors: Mar 6

Start Parsley seeds indoors around Mar 6 (8 weeks before last frost). Optimal germination temperature: 70°F. Germinates in 14–28 days.

Transplant Outdoors: Apr 17

Transplant Parsley seedlings outdoors after Apr 17. Wait until soil temperature reaches 45°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.

Harvest: Jun 6

First harvest approximately Jun 6 (~50 days from transplant). Continue harvesting until first frost (Oct 5). Parsley can overwinter in mild climates for continued harvest.

Fall Planting: Aug 10

For a fall harvest, plant Parsley around Aug 10 (8 weeks before first frost).

Companion Planting

✅ Tomatoes✅ Asparagus ✅ Corn✅ Peppers✅ Peas

❌ Lettuce❌ Mint

Parsley 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 13b

Frequently Asked Questions

When should I plant Parsley in Zone 4b?

Start Parsley seeds indoors around Mar 6. Transplant outdoors after Apr 17. Expect first harvest around Jun 6.

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 Parsley in Zone 4b?

Yes. Parsley needs 70 days to harvest. Zone 4b has a 157-day growing season, which is sufficient.

What is the best month to plant Parsley in Zone 4b?

The best time to start Parsley in Zone 4b is Mar. Begin seeds indoors around Mar 6, then transplant outdoors after the last frost date of May 1.

What companion plants grow well with Parsley?

Good companion plants for Parsley include Tomatoes, Asparagus, Corn, Peppers, Peas. Avoid planting Parsley near Lettuce, Mint.

How long does Parsley take to harvest?

Parsley takes approximately 70 days from planting to harvest. In Zone 4b, expect your first harvest around Jun 6.

Plan Your Parsley Garden

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

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