According to the store, sales are up in the run up to Christmas by 45 per cent more than this time last year.
Buyer Emma Coupe said all Waitrose British mistletoe is sustainably sourced from orchards in Herefordshire and Worcestershire.
Meanwhle auction prices at mistletoe centre Tenbury's Nick Champion auctions were running at £1 to £1.50/kg.
Holly went for £1.50 to £2 a kilo.
Tenbury Mistletoe Growers chairman Reg Farmer said: "There is some good mistletoe but it will be an average year and not nearly as good as 2011. Mistletoe needs plenty of sunshine and this is something that has been missing this year."
Waitrose sells mistletoe for £2.99. Sprigs of mistletoe are sold in garden centres for £1 upwards. Holly costs £3-£4 a spray.