September Gardening Guide

Posted on September 1, 2019

Plant Autumn and Winter colour this month for the best results – leaving it until later can mean that the plants don’t make the size they could before plant growth slows down.

  • Plant Autumn and Winter colour this month for the best results – leaving it until later can mean that the plants don’t make the size they could before plant growth slows down.
  • Bud bloomer heathers are available now along with Garden Mum Hardy Chrysanthemums & cyclamen to provide late colour.
  • Plant bare root wallflowers this month for best results.
  • As leaves start to fall, clear them from the lawn to keep the lawn healthy, remember to keep cutting your lawn.
  • Apply your Autumn lawn feed this month.
  • Remember that Hydrangea flower heads can be left on over winter to act as a haven for wildlife and protect next years young shoots
  • Autumn is natures time for planting and so September is a good month for planting trees, shrubs and herbaceous – the warmer soil gives roots a head start in establishing.
  • Remember that if September is dry, watering may be beneficial, especially to recently planted items.
  • Buy and plant your Spring bulbs now for the best selection and a strong start.
  • Time to clean your bird tables bird baths. Start putting our bird food this month, it takes time for the birds to find your food, so regular top ups are important.
  • September is a great time for laying turf, but especially so for sowing a lawn from seed.
  • It’s time for general housekeeping in the garden – cleaning the greenhouse and it’s gutters, empty and clean the water butt, remove litter & plant debris , tidy up pruning or light trimming of hedges (except conifers), dead heading, mulching, lightening the tops of plants that can be top heavy like Buddleja, Lavatera and Roses.
  • If you haven’t fed your garden, there is still time – and if you have bedding plants, these will still benefit from a good feed until they are finished flowering.
  • Did you know that sowing Sweet Peas in October gives the best plants?  They are hardy and easy to grow, just needing protection from pests over winter.  Buy them now to be ahead of the game!
  • Troublesome weeds can still be treated with Roundup in September and it is more effective if used at this time of year.
  • Want to move a plant? Start thinking about it now.  Hardy woody plants and perennials are good to move once they are dormant.  Plan now for later!
  • Gardeners trick of the month:  Layer or lasagne planting of bulbs can give you up to 6 months of bulb colour in your plantings, plus the flowers of whatever you plant on the surface, such as Violas, Pansys or wallflowers.
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