Establishing a niche - Marsh Bedstraw

It doesn't take much for flowers to spread widely - they just need to be allowed to flower and seed. One notable example here is Marsh Bedstraw. I found just a couple of plants of it a couple of years ago on a grassy bank that had previously been cut regularly. I have been careful to avoid cutting it and now just a couple of years later there is a whole bank of it - hundreds of flowerheads. It is a much more delicate and attractive bedstraw than the coarse Goosegrass that dominates in the richer areas.