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September was the traditional start of the harvest and is sometimes called “the season of mellow fruitfulness”.

Jobs around the garden

  • Add fallen leaves to the compost heap
  • To ensure bigger plants next year, sow hardy annuals now.
  • Continue deadheading your perennials and annuals so they continue to flower.
  • Trim evergreen hedges.
  • Growing pumpkins for Halloween? It will help them ripen if you remove the leaves which are shading the fruits. Raising pumpkins on slate or wood will prevent them rotting if the soil is wet.
  • Lawns will benefit from an application of lawn feed. Rake up leaves and other debris and treat any bare patches with Miracle-Gro® Patch Magic.
  • Check water butts and down pipes are in full working order ahead of the wetter weather.
  • Raise pots off the ground so that excess water drains away, rather than accumulating, freezing and then cracking in cold weather.

Vegetables to grow in September

These can all be sown from seeds, straight into prepared soil:

  • Lettuce
  • Spinach
  • Chard
  • Kale
  • Spring Onions
  • Spring cabbage

Flowers to grow in September

Spring bedding that can be planted straight outside:

  • Forget-me-nots
  • Pansies & Violas
  • Wallflowers


Bulbs which can be planted now to give your garden a flush of colour next year:

  • Alliums
  • Anemone
  • Bluebells
  • Daffodils
  • Hyacinths
  • Irises
  • Snowdrops


Seeds of the following flowers can be sown outside now:

  • Calendula (Marigolds)
  • Centaurea (Cornflowers)
  • Limnanthes (Poached Egg Plant)
  • Poppies
  • Scabiosa

Wildlife Gardening for September

  • To avoid disease, bird baths should be kept clean and topped up with fresh water.
  • Continue to feed the birds. Some may still have young to feed so avoid large pieces of food which could choke baby birds.
  • Leaving some seed heads on plants helps feed birds but also adds winter interest in the garden.
  • Cover you pond with netting to stop leaves falling in

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The Garden CentreTo Visit in Essex

We have parking spaces for up to 450 cars and easy access both onto and off of the A127, which is the main dual-carriage way into Southend-on-Sea. The A127 is off Junction 29 of the M25 which is a 10 minute drive to our door. Plan your visit to Summerhill today. We can’t wait to see you.

Summerhill Garden Centre, Pipps Hill Road North, A127 Arterial Road, Billericay, Essex CM11 2UJ