Florence Fennel

Florence Fennel

Foeniculum vulgare

Sow outdoors around your last spring frost. Space plants 10 in (25 cm) apart.

Photo: Challiyan, CC BY-SA 3.0 · source

When to plant

Timed from your frost dates, so it holds wherever you garden. Give yours and every step below becomes a date.

See the dates for your garden

Enter your average last spring frost and first fall frost. Every timing on this site turns into a calendar date. Not sure of yours? Your local extension service or a search for “last frost date” and your town will tell you; the app finds them from your location.

Last spring frost
First fall frost

Saved in this browser only. Nothing is sent anywhere.

Optimal Direct Sow

From seedRecommended
  1. Sow outdoorsaround your last spring frost
  2. First harvestabout 80 days after sowing

Optimal Indoor Start

From seed
  1. Start indoors5 weeks before your last spring frost
  2. Begin hardening off1 week before your last spring frost
  3. Plant outaround your last spring frost
  4. First harvestabout 80 days after sowing

Optimal Fall Direct Sow

From seed
  1. Sow outdoorsabout 14 weeks before your first fall frost
  2. First harvestabout 80 days after sowing

Growing florence fennel

Spacing in the row
10 in (25 cm)
Between rows
18 in (46 cm)
Planting depth
1/4 inch
Sun
Full Sun
Life cycle
Annual

Feeding

How often
At planting, then once at midseason. Side-dress lightly with nitrogen when the bulbs begin to swell; high-nitrogen feeding favours leaves over bulb.

Your florence fennel, planned to the day.

Canopy turns these timings into dates from your own frost data, places every plant at its spacing on your garden map, and tracks it all the way to harvest.

Add florence fennel to your planting calendar →

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