The company launched the service in September 2008 to help customers find the most suitable trees for their needs.
The database now contains more than 150 types of apple trees, which can be searched according to various criteria.
The new varieties for 2009/10 include Barnack Beauty, Dr Harvey and Star of Devon.
Owner Adam Powell said: "Our apple selector database has been warmly welcomed by commercial growers and home gardeners. It allows our customers to browse through a list of available varieties - from Greensleaves to Bloody Ploughman - and select those that match what they are looking for.
"We have had an excellent growing season this year with a warm spring, wet summer and dry autumn - perfect conditions for growing top quality trees."
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