Category Perennial

Sandy, gravelly or peaty shores and bogs. Love

By streams and ditches, also in swamps and fens. Occasionally found on arable land. Love

Dry prairies, gravels and rocky slopes. Love

Dry sterile soil or thin woodlands. Woods and roadsides in Texas. Love

Rich woods, thickets, river banks and prairies. Love

Not known in a truly wild situation but found as an escape from cultivation in damp places. Love

Moist coniferous and deciduous woods, clearings and bluffs, preferring shaded streamsides. Love

Prairies and glades. Calcareous or sandy soils and prairies in Texas. Love

Walls, shingle and warm grassy places on sandy soils. Avoids acid soils. Love

Hedge banks and the shady sides of damp woods. Love

Rocks, walls, cobbled paths etc, in dry sunny situations on acid or calcareous soils. Love

Shady cliffs and mossy rocks at low altitudes. Occasionally naturalized on walls in C. and S. Europe. Love

Cultivated ground, rocks and bushy places. Love

Meadows and wet grassy places by streams. Moist shady sites in grassland, on siliceous soils. Love

Wet meadows and swamps. Peaty or boggy soils. Love