WhenPlant

HomeCrops › Brussels Sprouts

When to plant brussels sprouts

Start brussels sprouts indoors 4–6 weeks before your last spring frost, then transplant 3 weeks before the frost date. Enter your ZIP below for exact dates.

The rule

Start indoors; set out 2–4 weeks before the last frost. [src]Cited: University of New Hampshire Cooperative Extension — “Growing Vegetables: When to Plant Your Vegetable Garden”
Start indoors 4–6 weeks before setting out. [src]Cited: Johnny's Selected Seeds — Seed-Starting Date Calculator chart

Method: Start seeds indoors, then transplant. Frost tolerance: frost-hardy (derived from the planting timing above).

Brussels Sprouts is frost-hardy; it's grown as a spring/summer crop.

Brussels Sprouts planting dates by hardiness zone

Computed from each zone's median NOAA frost dates and the cited rule. Find your zone with the tool above for pinpoint dates.

ZoneStart indoorsTransplant / sowSow for fall
Zone 10a November 13 – November 27December 18 – January 1
Zone 10b November 18 – December 2December 23 – January 6
Zone 2a March 15 – March 29April 19 – May 3
Zone 2b March 23 – April 6April 27 – May 11
Zone 3b March 18 – April 1April 22 – May 6
Zone 4a March 12 – March 26April 16 – April 30
Zone 4b March 8 – March 22April 12 – April 26
Zone 5a March 10 – March 24April 14 – April 28
Zone 5b March 2 – March 16April 6 – April 20
Zone 6a February 26 – March 12April 2 – April 16
Zone 6b February 19 – March 5March 26 – April 9
Zone 7a February 11 – February 25March 18 – April 1
Zone 7b February 2 – February 16March 9 – March 23
Zone 8a January 22 – February 5February 26 – March 12
Zone 8b January 12 – January 26February 16 – March 2
Zone 9a December 29 – January 12February 2 – February 16
Zone 9b December 1 – December 15January 5 – January 19

What you'll need

Affiliate links — as an Amazon Associate we may earn from qualifying purchases, at no extra cost to you.

📦 Ordering seeds or soil for this window? Amazon Prime's free 30-day trial includes fast free delivery, so supplies ordered now arrive while the window is still open — and returns are free if something is wrong for your zone. Start the free 30-day trial →
Affiliate link — we may earn a commission on qualifying sign-ups, at no extra cost to you. Current terms are on Amazon's page.

Last verified 2026-08-28. Sources: University of New Hampshire Cooperative Extension — “Growing Vegetables: When to Plant Your Vegetable Garden”; NOAA NCEI 1991–2020 Climate Normals (frost); USDA 2023 Plant Hardiness Zone Map.

Nearby