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Herbaceous Perennial

Patrinia triloba

three-leaved patrinia

P. triloba is a clump-forming perennial up to 50cm tall, with palmately lobed, mid-green leaves turning yellow in autumn. Branching stems support flower heads 10cm across consisting of small, trumpet-shaped, scented, yellow flowers with five petal lobes

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Ultimate height

0.1–0.5 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Clay

Loam

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full shade
Partial shade

Aspect

North–facing or West–facing or East–facing

Exposure

Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Caprifoliaceae
Native to the UK: No
Foliage: Deciduous
Habit: Bushy
Genus: Patrinia are clump-forming, herbaceous perennials with long-stemmed sprays of small, yellow or white flowers. The leaves are mainly basal, mid- to dark green, nearly always lobed or divided
Name status: Correct
Plant range: Japan

How to grow

Cultivation

Grow in fertile, humus-rich, moist soil in partial or deep shade

Propagation

Propagate by seed sown in containers in a cold frame as soon as ripe, or by division in spring

Suggested planting locations and garden types

Cottage and informal garden
Low Maintenance
Underplanting of roses and shrubs
Flower borders and beds
Ground cover

Pruning

Cut back stems after flowering

Pests

Generally pest-free

Diseases

Generally disease-free

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