October sees the start of autumn and leaves changing on the trees. October sees the start of autumn and leaves changing on the trees. OCTOBER heralds the start of autumn and the start of the big garden tidy up getting plants and containers ready for winter. From the wild dog roses of the hedgerow to ornamental hybrid teas in the garden, hips contain rose seeds and their bright colours attract the birds to eat and distribute them. In addition to planning your autumn planting, top tips from the RHS for October jobs in the garden include: