Baccharis patagonica

RHS Plant Profile

Patagonian groundsel bush

Other common names

Patagonian sea myrtle

Shrubs

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A slow-growing, dense, evergreen shrub reaching a height of 3m, with a rounded habit and small glossy, slightly toothed, dark green leaves. The flowers are small, creamy white to yellow and are borne in clusters from late spring to early summer

Position

Full sun

Soil Types

Clay, Loam, Sand, Chalk

Max Height

2.5-4 metres

Max Spread

2.5-4 metres

Size

Time to Maturity: 10–20 years
Max Spread: 2.5-4 metres
Max Height: 2.5-4 metres

Growing Conditions

Clay Loam Sand Chalk

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: North–facing or South–facing or East–facing or West–facing
Exposure: Exposed or 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): H4

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Asteraceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Bushy, Clump forming
Potentially harmful: The fruit may cause stomach upset if eaten. Wear gloves and other protective equipment when handling
Genus: A genus of over 400 species of dioecious, deciduous or evergreen shrubs and herbaceous perennials native to North, Central and South America. Leaves are alternate or absent. Flower heads are borne in axillary panicles or corymbs
Name Status: Correct
Plant Range: Chile & Argentina

How to Grow

Cultivation

Ideal for coastal positions, even growing in saline soil conditions. Tolerates all soil types and can help stabilise banks. Protect from harsh frosts

Propagation

Propagate by seed in spring. Both male and female plants are required for seed to be produced

Suggested planting locations and garden types

Coastal
City and courtyard gardens
Architectural
Cottage and informal garden
Low Maintenance
Banks and slopes
Hedging and screens

Pruning

Pruning group 1 or pruning group 4, although will tolerate renovation pruning, but flowering would be delayed for a year ot two

Pests

Generally pest-free

Diseases

Generally disease-free