POLICE have discovered £1.1 million worth of cannabis plants growing in the grounds of a garden nursery in Kingsgate.
Around 3,000 semi-mature to mature cannabis plants were in three greenhouses behind Kingsgate and Kenver Nursery on George Hill Road.
A police spokesman said: "We received a tip-off from a resident who could smell cannabis. We visited the nursery at 2.15pm, on Saturday, August 6 where we discovered the large cannabis factory.
"We were there until the following Tuesday because we had to remove the plants and wait for the electricity company to check on the power supply."
If all the plants had reached maturity the harvest would have weighed 111 kilos, with a wholesale value of up to £500,000 and street value of £1.1 million.
Nursery neighbour Beryl Cole said: "There were a lot of police there last weekend. We knew something was wrong because there were two or three police cars and a van behind the centre's gates after it had closed."
A police spokesman added: "It is certainly one of the biggest finds in Thanet in recent years. Thanet's biggest discovery was in 2005 where police discovered 6,000 plants in a warehouse on the Whitehall Estate in Ramsgate."
A 66-year-old woman was arrested but bailed until September 15 pending further enquiries.
Nursery owner Christine Huggan said: "I have been helping police with their inquiries as far as I am able.
"This incident has nothing whatsoever to do with Kingsgate and Kenver Nursery. The business remains open as usual."