Leptinella dioica

NO MOW Lawns. Much, much better than Platt's Black. It is slower but lasts and lasts...

Native. Shore Cotula. Usually in wet coastal habitats from the coast to 1000m in seeps and wet areas. So shade and poor drainage all fine. Dampness required. Bright green, weed suppressing mat which spreads well. Think stepping stones, under shrubs in damp spots.  

When you have a good sward, hit it with a bulb planter to make plugs to spread about... Fill the holes with sterile mix though! 

Available as runners. Ready for long term planting. Contact for amounts.

Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons