Yes, I saw a demonstration of the new material at IoG Saltex at Windsor in September. It was fascinating. The product is called Baseguard and the supplier, and indeed installer, is Complete Weed Control.
Well known as a sprayer contractor working nationally and for the use of the WeedIT computerised, chlorophyll-recognition, infra-red spraying system, the company is now offering to permanently tackle weeds around the base of newly planted street trees. Baseguard also has other advantages.
Tree wells collect litter, create trip hazards and suffer from compaction, as well as attracting weed growth. Although helping reduce the risk of compaction, the fitting of iron grilles means the tree well becomes a trap for cigarette butts and other debris. Baseguard overcomes this problem and eliminates the need for spraying or line-trimming to control weeds. It is moss resistant and does not crumble under foot traffic.
The product is based on polyurethane-bound rubber. When cured in-situ, the rubber forms a porous mulch-pad that fills the tree well and through which water and nutrients can pass. It is also flexible, expanding as the tree grows.
Baseguard is available in a variety of colours and is fitted by Complete Weed Control's nationwide network of trained installers (0800 783 2884).