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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...

Plant tomatoes in large pots or growing bagsOpen all vents on warm days, or install automatic vent openers, to encourage good air flowSow tender primulas, such as Primula obconica, P. kewensis and P. sinensis, to grow on as houseplantsTake cuttings from new growth on dahlias, pel...

Take cuttings from pelargoniums and fuchsias Repot rooted cuttings into containers a size larger, to prevent them from becoming pot-boundCheck plants regularly for signs of pestsPinch out the tips of rooted cuttings to encourage bushy plants

Raise lettuce and salad crops in pots for early pickingsWater potted fuchsias sparingly to prevent compost drying out completelyPrune grapevines before they come into growth, when their sap starts risingBring pots of strawberries under cover to encourage early fruitingStart sowin...