By Glyn Smith Head Gardener at Erddig Hall National Trust Garden
Erddig in September means yet more hedgecutting and the build up to our apple festival. (October 5th and 6th 2013) It looks as though the apple crop will be good this year, although there are lots of wasps about that can damage the fruit.
Keep your borders and beds flowering by removing any dead flower heads and keep cutting Dahlias or Chrysanthemums for a vase in the house. You may have some sweet peas too.
Cuttings can be taken from prized bedding plants, such as Pelargoniums (Bedding Geraniums) and Fuchsias. Use a multi-purpose compost, with added vermiculite or sharp sand. You may also use a rooting hormone to get the best results.
Towards the end of the month, consider lifting and potting up tender plants.
Wisterias may be getting out of hand. Their long tendril shoots can be pruned back to 30-45 centimetres from where they started growing. Don’t worry if there are too many leaves to see properly, as you will be winter pruning in a few months and can take the shoots back much further then.
Another pruning task may be on your rambler and climbing roses. Look to replace some of the oldest stems with fresh new ones growing from ground level.
Earlier apple and pear varieties will need harvesting. Varieties like Discovery and Worcester Pearmain, don’t keep well and should be eaten as soon as possible after picking.
September is the time to add grease bands to help prevent those annoying codlin moths that cause maggots in the apples.
Buy your spring bulbs. Daffodils, most lilies, snowdrops and autumn crocus can be planted out now.
September is a good time to sow grass seed. Whether just patching bare spots, or making a new lawn, grass seed will germinate quickly whilst there is still some warmth in the soil.
Keep up the work in the vegetable garden or on the allotment. Maybe you can squeeze in a row of Spring Cabbage seedlings.
Pick all your outside grown tomatoes at the end of the month, Many will continue to ripen on a sunny windowsill.