Growing Fennel in Zone 7b

Zone 7b has mild winters and a long growing season — good conditions for Fennel. Last frost: Apr 10. First frost: Nov 7.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 13Nov 7

Season: Apr 10 – Nov 7 (211 days) · Succession: plant every 3 weeks (up to 6x)

Zone7b

Last FrostApr 10

First FrostNov 7

Season Length211 days

Days to Harvest65

SunFull Sun

Frost ToleranceLight

Spacing12/sqft

When to Plant Fennel in Zone 7b

Start Seeds Indoors: Mar 13

Start Fennel seeds indoors around Mar 13 (4 weeks before last frost). Optimal germination temperature: 65°F. Germinates in 7–14 days.

Transplant Outdoors: Apr 3

Transplant Fennel seedlings outdoors after Apr 3. Wait until soil temperature reaches 50°F. Space plants at 12/sqft. Harden off plants for a week before moving outside.

Harvest: May 28

First harvest approximately May 28 (~55 days from transplant). Continue harvesting until first frost (Nov 7).

Fall Planting: Aug 29

For a fall harvest, plant Fennel around Aug 29 (10 weeks before first frost).

Companion Planting

✅ Dill

❌ Tomatoes❌ Peppers❌ Beans❌ Eggplant❌ Kohlrabi

Fennel 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 Fennel in Zone 7b?

Start Fennel seeds indoors around Mar 13. Transplant outdoors after Apr 3. Expect first harvest around May 28.

What is the last frost date for Zone 7b?

The average last spring frost date for Zone 7b is Apr 10. The first fall frost averages Nov 7, giving a 211-day growing season.

Can I grow Fennel in Zone 7b?

Yes. Fennel needs 65 days to harvest. Zone 7b has a 211-day growing season, which is sufficient. You can plant up to 6 successions.

What is the best month to plant Fennel in Zone 7b?

The best time to start Fennel in Zone 7b is Mar. Begin seeds indoors around Mar 13, then transplant outdoors after the last frost date of Apr 10.

What companion plants grow well with Fennel?

Good companion plants for Fennel include Dill. Avoid planting Fennel near Tomatoes, Peppers, Beans, Eggplant.

How long does Fennel take to harvest?

Fennel takes approximately 65 days from planting to harvest. In Zone 7b, expect your first harvest around May 28.

Plan Your Fennel Garden

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

Start Free Fennel Growing Guide