September in the Garden

• Apply aluminum sulphate around the base of hydrangeas to keep them blue; for pink blooms use dolomite lime.
• Continue deadheading annuals and tidying up perennial borders as plants finish flowering.
• Sow green manure crops of fall rye or legume mix in vegetable beds.
• Give hedges a final trimming before winter.
• Excellent time to reseed and renovate an uneven lawn or install a new one using turf or seed.
• Check out flowering ornamental grasses, Miscanthus (Maiden Grass), Panicum (Blue Switch Grass) and Stipa (Feather Grass) are at their peak this month.