Weather permitting, make compost pit and raised beds for next year and clear/improve paths leading to your plot and between your plots. Prune soft fruit - raspberry, gooseberry, currants - and tree fruit - apple and pears but not stone fruit - plum, greengage. Mulch spring cabbage, kale and purple sprouting broccoli and cover the plant with net to protect from pigeons if you already have not done so.
Sow / plant
Rhubarb, gooseberry, raspberry canes during frost-free periods.
Brussels Sprouts, Cabbage, Kale, Lamb Lettuce, Parsnip, Perpetual Spinach, Swiss Chard, Swede.