my garden is higher than the neighbours and I have a bed that is retained from neighbours drop into their garden with a gravel board. They are about 2.5ft lower than us. Last year I had to fill bottles of water and put out daily to drip water. But its not even summer and during the day my emerging flowers are flagging.
Any ideas or tips to increase water retention. I have broken my clay up with soil improver and compost and mulched with compost but it's still dry. I figure it's draining down to the neighbours level. Help pls