Tips for spring & early summer from Gary Long, Head Gardener at Trewithen

Head gardener at Trewithen Gardens, Gary Long, provides you with his top tips for trees and shrubs in spring and early summer:

  1. Mulch using organic matter to help prevent weeds and retain moisture.
  2. Feed trees, shrubs and roses with a balanced fertilizer such as Growmore or blood fish and bone. With Rhododendron pay attention NOT to mulch right up the stem/trunk. This could kill the plant, leave at least a 10 cm (4") gap.
  3. Check tree ties regularly to make sure they are not too tight and digging in or worked loose over the winter.
  4. Keep weeds under control, little and often is the key.
  5. Tie in climbing and rambling roses, making sure the stem is bent around the support to increase the chance of new shoots producing flowers lower down the stem.

Lawn care:

  1. Mow regularly lowering the height of cut gradually to the summer height.
  2. If composting clippings, spread in thin layers to speed up the composting process.
  3. Use "feed and weed" products to eliminate weeds and encourage lush new green growth.
  4. Edge lawns with either shears or a "Half moon".

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

  • April
    4 - 5

    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.

  • May
    06

    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.