Overview

Parthenium hysterophorus is a bushy herbaceous perennial in the genus Parthenium, part of the Asteraceae family, with deciduous foliage. Parthenium hysterophorus grows best in full sun, and tolerates loam and sand soils and any pH. Its UK hardiness is rated H6. Suggested uses include cottage and informal garden, wildlife gardens, city and courtyard gardens and flower borders and beds.

About

Parthenium hysterophorus is a bushy, herbaceous perennial belonging to the genus Parthenium in the Asteraceae family. It has deciduous foliage and thrives in full sun, favouring south, west, or east-facing aspects. This cultivar grows well in fertile, well-drained loam or sandy soils across a range of pH levels, from acid to alkaline. Suitable for cottage and informal gardens, wildlife areas, city courtyards, and flower borders, it offers seasonal interest in spring and summer. Propagation is typically by seed sown in situ during spring, division, or basal cuttings.

About the genus

Parthenium is a genus of North American annuals, biennials, perennials, subshrubs, and shrubs in the tribe Heliantheae within the family Asteraceae and subfamily Asteroideae.

Wikipedia contributors, "Parthenium", CC BY-SA 4.0 — Parthenium

Growing conditions

Best soil and position for Parthenium

Sunlight

Full sun

Soil type

Loam, Sand

Soil pH

Acid, Alkaline, Neutral

Soil moisture

Well-drained

Aspect

South-facing, West-facing, East-facing

Exposure

Exposed, Sheltered

UK hardiness

H6

Plant details

Parthenium hysterophorus size, habit and characteristics

Plant type

Herbaceous Perennial

Habit

Bushy

Foliage

Deciduous

Suggested uses

Cottage and informal garden, Wildlife gardens, City and courtyard gardens, Flower borders and beds

Care notes

Pruning and caring for Parthenium hysterophorus

Propagation

Seed sown in situ in spring, division, basal cuttings

Pest resistance

Aphids, leaf and bud eelworms, leaf-mining flies

Disease resistance

Generally disease-free

Frequently asked questions