Sowdaythe garden guide
This monthFull yearCrop Guides
Set my location
September · Early autumn

What to sow in September in Brussels

35 crops are in their window this month in Brussels — timed to your local frost dates.

Last frost≈ 27 Apr
First frost≈ 13 Nov
Frost-free days73 days
September averages12°–21°C

Vegetables

29 in season
Amaranth Greens
Direct sow · pinch tips often for a steady flush of tender greens
Closes 30 Sep
Arugula
Direct sow · sow every 2-3 weeks for a steady peppery harvest
All month
Beets
Direct sow · soak seed clusters overnight to speed germination
Closes 19 Sep
Bitter Melon
Start indoors · harvest young and green — riper fruit turns bitter
Closes 4 Sep
Bok Choy
Direct sow · fall crops resist bolting better than spring ones
Opens 14 Sep

Herbs

6 in season
Basil
Start indoors · loves heat, don't rush it outside before frost
Closes 10 Sep
Chervil
Direct sow · prefers cool shade, bolts quickly once hot
Opens 11 Sep
Cilantro
Direct sow · bolts fast in heat, sow small batches often
All month
Dill
Direct sow · taproot resents transplanting, sow direct
Opens 14 Sep
Epazote
Direct sow · cut flower heads early or it self-seeds everywhere
Closes 4 Sep

Fruit · nothing to sow this month

Browse all planting calendars
Works worldwide · frost dates detected automatically · place data © GeoNames (CC BY 4.0)