Finance director Loraine Woodhouse said: "Warm spring weather is still evading the UK, so shoppers were brightening up their homes with plants and flowers. Sales of horticulture grew by 11 per cent, with cut flower sales up by 20 per cent.
"Customers were making the most of Waitrose specialist shops online last week, with sales overall up 45 per cent year on year. Waitrose Florist sales grew by 15 per cent and Waitrose Cellar saw sales rise by 53 per cent compared to last year.
"With the latest Waitrose TV ad campaign focussing on our agricultural credentials, service counter meat and fish sales rose by 12 per cent."