Country diary: The simple joys of pavement plant-spotting | Nic Wilson

Hitchin, Hertfordshire: We have a local speciality here, the rue-leaved saxifrage, poking up in street cracks and wall crannies. It's worth lying on the pavement forI'm a proud member of Happy (the Hitchin association of pavement plant yokels), so-called by my friend Phil, a fellow wildflower enthusiast. You'll find us roaming the town centre, scanning brick walls and peering into paving crevices on the hunt for the tenacious species that thrive in these oft-overlooked habitats. I had my pavement epiphany a couple of years ago outside the chemist on Hitchin high street when I saw a little lass bending down, scrutinising the paving stones. Her dad soon whisked her away and I went over to look. She'd noticed a community of self-seeded plants growing in a semicircular crack. The diversity of the miniature garden astonished me: mosses, meadow grass, goosegrass, common whitlowgrass, sow thistle, fleabane, and there, among the annual plants and perennial cigarette butts, a seedling with trilobed leaves - a Hitchin speciality - rue-leaved saxifrage (Saxifraga tridactylites).Now it's early May and this three-fingered rock-breaker's tiny white flowers have opened in the sun, the foliage blushing redder the drier and sunnier its location. Looking closely, you can see sticky hairs lining the fleshy leaves and stems - but be prepared for funny looks if you lie prostrate on the pavement to examine this low-growing annual. Continue reading...