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large pots or binsWater pots of forced bulbs if their compost is dryWater plants sparingly taking care not to splash water aroundWash glazing inside and out to let in the maximum amount of lightInsulate greenhouses by fixing bubble polythene

Protect pots of seedlings from the cold by making mini-cloches from empty plastic bottlesPrick out seedlings once they have developed their first true leavesOpen doors and greenhouse vents on warm days to improve ventilationSow herbs into pots

Fit automatic openers to greenhouse vents to encourage good air circulationPlant tomatoes in growing bags or large pots, training them on to canes or wires for supportBring pots of strawberries into the greenhouse to produce early flowers and fruit

Take cuttings of zonal and regal pelargoniums, and pot up rooted cuttings taken earlierTrain the main stem of cucumber plants up a wire to the roof of your greenhouse. Pinch out sideshoots two leaves after a flower or fruitWater plants in pots

Line greenhouses with bubble polythene for insulation against falling night temperatures Clean staging and capillary matting to use next yearBring pots of tender agapanthus and eucomis under coverCheck all plants for signs of pests and treat

Clear fallen leaves from greenhouse gutters Bring tender plants under cover before frosts strikeWash off any remaining summer shading paint and clean glass inside and outInsulate the greenhouse with bubble polytheneOpen vents on warm days but close

and eucomis into the greenhouse for the winterLet achimene, gloxinia and gloriosa die down in their potsKeep potted azaleas constantly moist using rainwaterPlant bowls with hyacinths and spring bulbsCheck greenhouse heaters are in working order and that you

Wash greenhouse glazing to let in maximum lightBring potted cordylines under cover for winterInsulate your greenhouse with bubble polytheneMaintain plant hygiene, picking off faded blooms and dead leaves from all plantsWater plants more sparingly

the greenhouse border and dig in fresh compostPlant dwarf irises, hyacinths and crocuses in potsRemove faded leaves and flowers from plants to prevent grey mould spreadingVentilate greenhouses on warm days but close vents at nightCover poinsettias to give them

Pot up rooted cuttings and young plants that have outgrown their potsSow seeds of marrows, courgettes, squashes, cucumbers and melons in a heated propagatorWater pots and trays of seedlings with a solution of copper fungicide to prevent damping-off diseaseSow summer bedding, such...