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Meadow Cranesbill

Geranium pratense 'Boom Chocolate'

Geranium pratense 'Boom Chocolatta' is a hardy perennial grown for its bold dark leaves and open blue flowers.

At a glance

Hardiness

4 – 8

Light

Full sun, Partial shade

Mature size

60 – 75 cm tall × 70 – 75 cm wide

Garden uses & seasonal interest

Plant characteristics

Plant type

Herbaceous Perennial

Season of interest

June - August

Where it grows best

Water

Moist, well-drained soil

What to expect

Blooms

Jun–Aug

Good to know

Pollinator friendly
Drought tolerant
Low maintenance
Clump-forming · Mounding

Perfect for

Ground coverUnderplanting

Seasonal interest

How this plant changes through the year.

Spring

Foliage
purple

Summer

Flowers
blue
Foliage
purple

Fall

Foliage
brown

Care Information

Pruning
Remove faded flower stems to keep the plant tidy and encourage a lighter second flush. After flowering, or when growth looks tired, cut the plant back hard and remove old stems before new growth starts.
Soil
Chalk, Clay, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Pests
This geranium is usually trouble-free, though sawfly larvae or vine weevil may appear from time to time. Check the leaves and crown now and then so any problem can be dealt with early.
Diseases
It is mostly reliable, but powdery mildew can appear, especially when the plant is dry or crowded. Good air flow and steady moisture help keep the foliage in better condition.
Propagation
This plant is usually propagated by division or basal cuttings, but named plants are often protected and should only be propagated when allowed. Division is best done when the plant is not in active bloom, using healthy outer sections for strong new growth.

Characteristics

Type
Herbaceous Perennial
Variegated
No
Family
Geraniaceae

Placement

Aspect
East, South, West

Timing

Fruiting Months
August, September