Purple Gromwell - Glandora diffusa (Care, Characteristics, Distribution, Images)

Purple Gromwell

Also known as: Lithodora

Purple Gromwell is an award-winning plant popular in gardens and large containers. The multi-branching plant produces a profusion of flowers in the summer. The flowers’ sweet nectar attracts bees. Be careful with pruning, it can irritate the skin.

Scientific classification

Species

Purple Gromwell (Glandora diffusa)

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Perennial

Lifespan

Herb

Plant Type

10 cm to 30 cm

Plant Height

60 cm to 90 cm

Spread

Green

Leaf Color

Winter dormancy

Dormancy

Semi-evergreen

Leaf type

5 - 32 ℃

Ideal Temperature

Images of Purple Gromwell

Toxicity

Purple Gromwell is moderately toxic to humans, cats, and dogs. The entire plant contains pyrrolizidine alkaloids, causing liver damage and allergic reactions upon touch. Symptoms include skin irritation, rashes, gastrointestinal upset, and neurological signs. Immediate veterinary care or medical attention is essential if exposure is suspected.

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Care Guide for Purple Gromwell

Every 1-2 weeks

Water

Full sun

Sunlight

5 - 32 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Purple Gromwell prefers moderately moist soil and thrives with consistent moisture. Water every 1-2 weeks, keeping the soil slightly dry between sessions. It grows well in well-draining soil typical of temperate regions, balancing water retention and drainage for optimal growth.

Pruning: Purple Gromwell features vibrant blue-purple flowers and thrives with early to late spring pruning. Trim dead stems, shape for dense growth, and remove spent blooms to encourage more flowers. Regular maintenance enhances airflow, reduces disease risk, and supports longevity and performance.

Propagation: Purple Gromwell can be propagated through cuttings. Use healthy stems and rooting hormone for better root growth. Plant in well-draining soil, keep consistently moist, and provide indirect light. Gradually acclimate rooted cuttings to their future transplanting conditions.

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Images of Purple Gromwell

Toxicity

Care Guide for Purple Gromwell

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