Plant out outdoor tomatoes.

Sow marrows and cucumbers.

Plant out celery seedlings when large enough to handle.

Pinch out the tops of broad beans.

Plant out brussels sprouts plants. Sprouts are slowly becoming less popular but new recipes including braising with bacon make them delicious. plant them 3 feet apart for the best results, they grow high and like space. To make best use of the space between, you can plant early cabbage or cauliflower between them, cutting them before the sprouts need the space.