What Seeds to Sow in September

Monthly Sowing Guide
September sowing depends strongly on your climate.

September is an important autumn sowing month across Europe. Mediterranean gardens can still make use of warm early-season conditions, while temperate and northern regions begin concentrating on hardy flowers for next year, cool-season vegetables and protected sowings. Explore the guides below to find the best seeds to sow this month in your climate.

Mediterranean garden seeds to sow in September

Mediterranean & Hot Summer Climates

Final warm-season flower sowings early in the month, followed by hardy flowers, autumn vegetables, peas and herbs as temperatures begin to ease.

Explore Mediterranean September Guide
Northern Europe seeds to sow in September

Northern & Cool Summer Climates

Hardy flowers for next year, protected autumn sowings and fast, cold-tolerant vegetables for regions with shorter autumn growing windows.

Explore Northern Europe September Guide

September Gardening Tips

Begin autumn flower sowing Calendula, cornflowers, nigella and hardy poppies can be sown now for earlier flowers next year.
Watch local temperatures Mediterranean gardens may still be warm, while northern regions may already need protection for young seedlings.
Sow cool-season vegetables promptly Spinach, rocket, radish, lettuce and other quick crops benefit from being established before daylight and temperatures fall further.
Prepare winter protection Cold frames, cloches, fleece and unheated greenhouses can extend the autumn growing season and protect young plants.

Shop Popular Seeds for September Gardening

Explore hardy flowers, autumn vegetables, herbs and climate-friendly varieties selected for September sowing across Europe.

Calendula Seeds Cornflower Seeds Nigella Seeds Poppy Seeds Sweet Pea Seeds Spinach Seeds Rocket Seeds Radish Seeds Lettuce Seeds