Top ten autumn gardening tips from Gary Long, Head Gardener at Trewithen

  1. Clear up fallen leaves - especially from lawns, ponds and flower beds, add to compost heap or put in black bags, leave for 12 months to make leaf mould (excellent for adding nutrients as a mulch).
  2. Raise containers onto pot feet to prevent water logging or if possible bring into un-heated greenhouse/conservatory.
  3. Plant bulbs for a spring display next year, you will be rewarded next year with the extra burst of colour.
  4. Prune roses to prevent wind-rock, ideally to a third of their height even if still in flower (use the flowers in the house/give to your wife!)
  5. Plant out winter bedding if soil isn’t too wet.
  6. Insulate outdoor containers from frost - bubble wrap works well, fleece or again if possible move pots to a frost free area or greenhouse.
  7. Put out bird food to encourage winter birds into the garden.
  8. Trim deciduous hedges such as beech. The juvenile foliage will turn brown and remain on the hedge all winter creating a good screen.
  9. Raise the height of your lawn mower, grass will be growing slower.
  10. Use a seasonal bonfire - where this is allowed - to dispose of excess debris unfit for composting.

For more information about Trewithen visit www.trewithengardens.co.uk

Member's Gardens

Members' Gardens

Our members have some truly beautiful and interesting gardens. Take a look to see some of the wonderful things growing.

Become a Member

You can take out CGS membership as an individual or as a family and there are lots of benefits.

Upcoming Events

  • Cornwall Garden Society Spring Flower Show

    Join us in our spring oasis within the Royal Cornwall Showground on Saturday 4th and Sunday 5th April 2020 and explore an array of horticultural delights. Enjoy wide-ranging and stunning displays of spring flowers and shrubs, plus beautiful floral art and photographic displays. And if you fancy indulging in a bit of garden-related retail therapy we have everything you could wish for with over 60 prestigious nurseries selling fabulous plants and bulbs and another 50 plus retailers selling garden-related goodies.

  • Self-drive visit to Botallick, Lanreath and South Bosent, Liskeard

    Started in Spring 1994, Botallick is a spring woodland garden with an extensive collection of magnolias, camellias and rhododendrons spread over four acres. It also includes an orchard stocked with Cornish varieties and wild flowers. The Bucknell family who own the garden often exhibit blooms in the competitive Classes at our annual Spring Flower Show.

    Sisters, Adrienne and Trish, are developing South Bosent with wildlife in mind. It comprises several themed gardens, woodland plantings, large mixed borders and a four-acre meadow. Other features include a mini-lake, waterfall and rill on the terrace,and several plant collections, all designed to provide year-round interest. Along with thousands of planted bulbs throughout the garden, a bluebell wood runs alongside the stream pathway.

    A booking form can now be downloaded by clicking here.