Timely tasks in the garden, focussing on ornamental grasses and lawn care. We have a step-by-step guide to autumn lawn care by RHS Wisley Garden Manager, Matthew Pottage, and we're also joined by Neil Lucas, nurseryman of Knoll Gardens, to hear his expert suggestions for ornamental grasses that you can use in your garden.

Plus we have autumnal advice and ideas for what you should be doing in your garden now including:

• Spotting red spider mite and harlequin ladybirds
• Dividing herbaceous perennials
• Planting spring cabbages

And as always there's news of the latest events across our four RHS gardens.