Smiths is a large garden centre just outside Uxbridge. There is a vast choice of greenery for sale in a huge outdoor area, and also an indoor shopping area and café(not tried). It offers an extremely comprehensive range of products. Staff in the outside area can be hard to find but there are knowledgeable staff available if you need advice as I did when selecting a fruit tree for my garden. The level of customer service is high, I was surprised to discover that if you buy a heavy bag of fertiliser or compost it will be taken to your car on an electric carrier! So all in all a recommended place to go for garden supplies and products.