Large, upright, fast growing deciduous perennial, medicinal plant (H 120-180 cm, W 30-50 cm). Stems green, smooth, upright. Leaves elongate (12-20 cm), pinnately compound, smooth, glossy, dark green, scented. Flowers in large terminal inflorescence, tiny, simple, white. Flowering period: June-August. Attracts butterflies and bees. Undemanding, long-lived perennial. Grows best in always moderately moist soils, or near water. disclaimer užitnost
These plants grow well in sun or in partial shade. Usually they tolerate more sun and heat if given enough moisture; in partial or light shade they need less moisture.
Herbaceous plants are not woody. Their stems are soft, usually remaining green. With some herabceous older stems may harden and look like woody stems (e. g. bamboo).
The plant develops new leaves or needles every spring, which dropp off in autumn. Herbaceous plants can die completely in above ground section and grow back in the spring.
Plant can in otherwise appropriate environment survive cold down to - 23 °C.
Moist soil usually contain morefine clay parts and less sand, more humus and organic materials, they are somewhat heavier, but not hard; water does not run away quickly but stays among soil particles and is long available to plants. There is no stagnant water, soil is airy enough. Drought occurs rarely on such positions. Plants are given more or less permanent, moderate moisture.
Herbaceous, not woody plant. Stems and leaves may be evergreen or deciduous - thus regrowing every spring. Perennials may blossom consecutively for several years. Some perennials develop special underground organs - bulbs, corms or rootstocks and these species are treated separetelly, not with geophyte and tuberous plants.