Oh dear, another addictive family of hardy herbaceous perennials! Lots of unusual species to choose from and some new breeding between them. Mostly tight clump formers with airy upright flowers in summer.
A chunky hybrid between T flavum ssp. glaucum and T. rochebrunneanum. Glaucous foliage, purple stems and large heads of pink-purple flowers to 2m! Good soil in sun.
New to us, chocolate brown flushed foliage and loose heads of clear white flowers on wiry stems to about 50cm. Very pretty and quite interesting. Ordinary soil in sun.
An outstanding species, dioecious and variable but always really pretty! Purplish stems and well-divided leaflets to about 30cm and taller stems topped with heads of fluffy white/pink flowers from mid-summer. Clump forming and quite slow. Good soil in sun or part shade. 50cm.
Rarely seen this far east Russian species makes clumps of attractive fine-cut grey-green foliage and heads of creamy yellow flowers to about 75cm. Average soil in sun or light shade.
