Retaining Moisture under a Bush
I have a bush near a South West facing wall and the bush being 1,8m high and 1.8m wide.
Last summer I had a problem with Mildew on the lower leaves. I was advised to keep the area from drying out under the bush.
Years ago, I used chipped bark in the borders but found when this dries it gets blown across the garden.
So what is advised to put under the bush to help retain moisture in the soil around.