Successional sowing is the gardening technique of sowing small amounts of a crop at regular intervals — rather than all at once — so that it matures in a steady succession rather than all at the same time. It's the simple secret to a continuous harvest.
If you sow a whole packet of lettuce or radish seeds on one day, they'll all be ready to harvest at the same time — giving you a sudden glut you can't possibly eat, followed by nothing. Successional sowing spreads the harvest out, so you have a steady, manageable supply over many weeks instead.
'Little and often' is the rule. It takes barely any extra effort but transforms a feast-or-famine harvest into a steady supply of fresh veg — one of the most useful habits a beginner grower can adopt. Our free seed sowing planner helps you space your sowings.