Among the oldest botanical gardens in Britain (it was founded in 1673) the Chelsea Physic Garden is a must-visit for avid gardeners. Its location – in the middle of Chelsea – makes it easily accessible and provides a welcome respite from the hustle and bustle of urban life. The garden is famous for the variety of species grown – everything from medicinal, edible and even poisonous plants are on show. Keep an eye out for the engaging and informative talks that the venue hosts throughout the year.