21 December

ORCHARD : The Waxing Gibbous moon at over 91% illumination pushes sap vigorously into above-ground tissues — fruit trees are genuinely receptive to care right now. Before 19h23 (UTC), focus on fruit-day tasks: inspect dormant fig (Ficus carica), persimmon (Diospyros kaki) and mulberry (Morus nigra) branches for deadwood, cutting cleanly back to healthy tissue with sharp loppers sterilised in a 10% bleach solution / Tie in long, whippy shoots of fan-trained morello cherry (Prunus cerasus) and damson (Prunus insititia) against their wires before winter winds do the damage for you — use soft jute twine and leave a little slack / In milder gardens, apply a dormant oil spray to plum (Prunus domestica) and apricot (Prunus armeniaca) bark to smother overwintering scale insects; choose a dry, frost-free window and coat every nook of the bark evenly.

VEGETABLE PATCH : After 19h23 (UTC), the day shifts to a root-sign period — the soil practically invites you to think underground. Turn your attention to stored root crops: check clamped celeriac (Apium graveolens var. rapaceum) and parsnip (Pastinaca sativa) for any soft spots or rot, removing affected individuals immediately so decay doesn’t spread through the clamp / On heavy clay soils, avoid working beds directly; instead, lay a 5 cm mulch of well-rotted compost over rows of overwintering Hamburg parsley (Petroselinum crispum var. tuberosum) and scorzonera (Scorzonera hispanica) to insulate roots and improve soil structure by spring / Under cover or in a cool greenhouse, sow a short row of radish (Raphanus sativus ‘French Breakfast’) at 1 cm depth in a module tray — roots develop steadily even in low winter light and you’ll have crisp harvests in 5–6 weeks / Sandy-soil gardeners: water stored dahlia (Dahlia spp.) tubers lightly if the medium feels bone-dry, as desiccation at this stage weakens next season’s growth.

LANDSCAPING : Today marks the winter solstice — the shortest day, and quietly the turning point of the year. Rake fallen leaves from lawn areas and add them to a dedicated leaf-mould cage: after 12–18 months, the resulting crumbly material makes an unbeatable mulch for woodland-edge shrubs like viburnum (Viburnum x bodnantense), witch hazel (Hamamelis mollis) and hellebore (Helleborus orientalis) / Check the ties on newly planted bare-root roses and ornamental trees; frost-heave loosens stakes and a rocking root system sets establishment back considerably — firm the soil around the base with your boot if needed / Scatter a handful of grit around the crowns of borderline-hardy plants like Agapanthus and Kniphofia to deflect standing water, which is often more damaging than cold itself.


Written by Jardiner Malin | La rédaction vous propose des conseils d'experts, une approche respectueuse de la nature, de beaux jardins et un potager fait de bons petits légumes cultivés au fil des saisons.