VEGETABLE PATCH : The descending Waning Crescent, now a thin sliver barely visible at dawn, channels its fading energy into leaf growth — a solid window for working with foliage crops under cover and in the open ground / Sow a fresh row of lamb’s lettuce (Valerianella locusta) directly into cold frames or an unheated greenhouse, scattering seeds thinly at 1 cm depth; germination is slow but reliable at low temperatures / Transplant winter spinach (Spinacia oleracea) seedlings started last month into raised beds, spacing plants 20 cm apart — their broad leaves will capture every scrap of pale December light / Check overwintered rows of kale (Brassica oleracea var. sabellica) and pak choi (Brassica rapa subsp. chinensis): strip any yellowing outer leaves at the base to improve airflow and reduce the risk of grey mould / In Mediterranean climates, direct-sow Swiss chard (Beta vulgaris subsp. cicla) outdoors now; further north, keep this under glass.
INDOORS : A good moment to tend to leafy houseplants that double as a kitchen herb supply through the darkest weeks / Pot up a fresh clump of chives (Allium schoenoprasum) dug from the garden into a 12 cm terracotta pot filled with a mix of potting compost and sharp sand — place on a bright windowsill and water sparingly every 4–5 days / Trim back overgrown mint (Mentha spicata) stems to 5 cm above the soil, encouraging a dense flush of tender new growth within two weeks / Check watercress (Nasturtium officinale) trays: rinse roots under lukewarm water and refresh with a diluted liquid seaweed feed at half the recommended dose, boosting chlorophyll production without forcing soft, frost-sensitive growth.