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Alpine RockeryHerbaceous Perennial

Gentiana × macaulayi

Macaulay gentian

A perennial with trailing stems to 12cm in length, bearing narrow leaves and solitary, blue, funnel-shaped flowers shaded with violet outside, and up to 6cm in length, from late summer

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Ultimate height

Up to 10cm

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Chalk

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

South–facing or East–facing or North–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)

Botanical details

Family: Gentianaceae
Native to GB / Ireland: No
Foliage: Semi evergreen
Habit: Trailing
Genus: Gentiana can be annuals, biennials, herbaceous or evergreen perennials, mostly with showy, trumpet or salver-shaped flowers
Name status: Correct

How to grow

Cultivation

Grow in moist but well-drained, humus-rich soil in partial shade. Suitable for a rock garden

Propagation

Propagate by seed or division of offsets in spring

Suggested planting locations and garden types

Cottage and informal garden
Gravel garden
Rock garden
Ground cover

Pruning

No pruning required

Pests

May be susceptible to slugs, snails and aphids

Diseases

Prone to root rot

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