Grow your own: December

What to sow, plant and pick in a Trellech garden or allotment in December. Trellech sits in a frost-prone valley, so tender crops go out at the end of May, not the start.

Jobs for December

Harvest leeks, parsnips and sprouts.
Clean and sharpen tools; wash pots and trays.
Plan next year — note what did well.

Sow indoors

On a windowsill, in a greenhouse or under cover

Nothing this month.

Sow outside

Straight into the ground

Nothing this month.

Plant out

Seedlings, sets and young plants

Garlic
It needs a cold spell to form proper bulbs — autumn planting is best.
Rhubarb
Don't pull any in its first year, and stop picking in July.

Ready to harvest

Leeks
Parsnips
Kale
Brussels sprouts