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Alpine RockeryHerbaceous Perennial

Mimulus primuloides

primrose monkey flower

A rhizomatous, mat-forming perennial, to 10cm high, with hairy, pale to mid-green leaves. The trumpet-shaped flowers, borne in summer, are yellow with red-spotted throats

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Plant nurseries
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Ultimate height

Up to 10cm

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained, Poorly–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

East–facing or South–facing or West–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: Phrymaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Matforming
Genus: Mimulus can be annuals, perennials or evergreen shrubs, with paired leaves and 2-lipped tubular or trumpet-shaped flowers in terminal racemes or in the leaf axils
Name status: Correct
Plant range: W USA

How to grow

Cultivation

Prefers moisture retentive soils in sun or partial shade

Propagation

Propagate by seed or by division

Suggested planting locations and garden types

Cottage and informal garden
Rock garden
City and courtyard gardens
Patio and container plants
Flower borders and beds

Pruning

No pruning required

Pests

Slugs and snails may be a problem

Diseases

May be susceptible to powdery mildews

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