Peter Dowdall: How to ensure a garden is catnip for biodiversity
Cats love playing with catmint, perhaps not as much as its first cousin catnip, nepeta cataria. Picture: iStock
Later in the summer, clematis offers much larger and more showy blooms with varieties of C. viticella, which will flower from June-August, and varieties of Clematis tangutica which will extend the period of colour on your walls right into October and beyond.



