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Lift, divide and replant congested flag irises after floweringDeadhead border perennials like delphiniums and lupins to encourage a second flush of bloomsPick dead flowers off rhododendronsDeadhead roses to encourage more flowersCut back ceanothus

mildew and blackspotPropagate climbers like wisteria and passion flower by layering. Bend low shoots to soil level and peg them down, making a slit in the portion buried to encourage rootingPick off any lily bulbils forming on the stems and pot them up

and kalanchoePick peppers, tomatoes, cucumbers and other greenhouse crops regularly to encourage further flowers to develop

Train cucumbers and prune back sideshootsPick off flowers on coleus to maintain their colourful leavesWater tomatoes regularly to prevent fruits from splittingTake cuttings from fuchsias, coleus, pelargoniums, marguerites and other tender perennials

to propagate including aquilegia, polemonium and foxglovesIdentify rose problems and pick off diseased leavesPrune philadelphus, weigela and other early summer-flowering shrubsPropagate lily bulbs by taking off a few outer scales and putting them in bags

Pick off leaves infected by rose blackspot or rose rust, and dispose of them in your dustbin and not on the compost heapSet up an automatic watering system with a drip nozzle for potted plants if you're going on holidayTop up water levels in ponds

perennials and bedding plantsCollect seed from any flowers you fancy propagatingTrap earwigs among dahlias with upside-down pots stuffed with straw and balanced on canesPick leaves off plants affected by rose blackspotTrim conifer hedges and evergreen hedges

Pick plums as they ripenEase onions from the soil with a fork to prepare them for harvestingFinish pruning trained forms of apple trees like cordons, espaliers and fansWater crops regularly, especially during hot weatherLift marrows

Place poinsettias in the total dark for 14 hours a day to encourage colourful bracts to form, moving into full light for the rest of the dayWater indoor cyclamen after their summer rest to encourage new growthPlant lachenalia and veltheimia bulbsPick off the lower

Deadhead border plants, unless you want to collect their seedsSpray gladioli to prevent thrips damage to leaves and flowersPick herbs and everlasting flowers for dryingBuy or build compost bins to help recycle all your kitchen and garden wasteCollect seeds