September Maintenance

What to do in your garden in September

 

·         Sow sweet peas in the greenhouse ready for next year

·         Sow hardy annuals in situ

·         Plant new perennials towards the end of September as the soil is still warm and moisture levels are increasing

·         Dead-head hanging baskets or if past their best then replant with winter bedding

·         Continue to dead-head Dahlia, roses, Delphiniums and Penstemons to prolong the display

·         Cut back perennials that are fading and dying down

·         Divide herbaceous perennials such as Crocosmia

·         Take cuttings of tender perennials such as Pelargonium and Osteospermum

·         Continue to take and store seed from perennials

·         Wait for the frost before lifting the tubers of Dahlias and Cannas

·         Late flowering tall perennials will need staking to prevent wind damage

·         Shrubs and trees can now be moved without worrying about their survival and establishment

·         Prune late-flowering shrubs such as Helianthemum

·         Prune climbing roses once they have finished flowering

·         Clear dead leaves promptly once they start to fall

·         Fill gaps in your borders with autumn flowering plants to extend the colourful season

·         Plant Hyacinth and Amaryllis bulbs for forcing in time for Christmas presents

·         Plant spring flowering bulbs such as daffodils and crocus now

·         Keep Camellias and Rhododendrons well watered to ensure next year’s buds develop well

  

Information provided by www.thompson-morgan.com and www.rhs.org.uk