• 4 for 3

Lithodora Diffusa Grace Ward

Gromwell

£8.99

size guide

The height of all of our plants is measured from the base of the pot.

Pot Size Pot Diameter Pot Height
6cm 6cm 5.5cm
9cm 9cm 8.5cm
1 Litre 13cm 11cm
2 Litre 17cm 13cm
3 Litre 19cm 15cm
4 Litre 20cm 17cm
5 Litre 23cm 19cm
7 Litre 25cm 20cm

Please note: the pot sizes listed below may vary due to the suppliers we use.

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Lithodora Diffusa: Produces masses of vivid blue, star-shaped flowers in late spring and summer.

Foliage: Evergreen groundcover with dense, trailing foliage for year-round interest.

Planting: Ideal for rockeries, borders, containers, and cascading over walls.

Pollinator Friendly: Attracts bees and pollinators, supporting a wildlife-friendly garden.

Growth: Hardy and easy to grow, preferring well-drained, acidic soil in full sun.

Plant genus Lithodora

Common Name Purple Gromwell

Plant type Alpine Plants

Foliage type Herbaceous, Perennial

Hardiness Hardy

Soil acidity Neutral

Planting aspect South Facing, West Facing, Partial Shade or Sun

Flower colour Blue

Leaf colour Green

Edible Use No

Planting Companion Dianthus, Thyme, Sedum

Light Required Full Sun

Watering Water regularly after planting until the roots are established. Once settled in, the plant is relatively drought tolerant and usually only needs extra water during prolonged dry spells. Plants grown in containers will need more frequent watering than those growing in the ground.

Best Growing Conditions Grow in sun or partial shade in fertile, well-drained loam. Choose a position with good airflow and enough space for the plant to reach its mature size. Mulch after planting and keep the root zone free from prolonged waterlogging, particularly through winter.

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Top tip

Remove damaged or spent growth as it appears and keep the area around the plant free from weeds so air and light can reach the base. Good drainage is especially important, so avoid leaving the roots sitting in persistently wet or compacted soil.

Key Features

Beginner Friendly

Beginner Friendly

Comes Back Each Year

Comes Back Each Year

Good For Containers

Good For Containers

Low Maintenance

Low Maintenance

Pet Friendly

Pet Friendly

All Year Interest

All Year Interest

Wildlife Friendly

Wildlife Friendly

Season of Interest

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Planting Flowering

something interesting about lithodora

fact about lithodora

One interesting fact about Lithodora is that it is actually a member of the forget-me-not family (Boraginaceae), which also includes other well-known garden plants like borage and heliotrope. Additionally, the name “lithodora” comes from the Greek words “lithos,” meaning stone, and “doron,” meaning gift, referring to the plant’s ability to grow well in rocky or stony soils. Another interesting feature of lithodora is that it is sometimes referred to as “gromwell,” a name that comes from the plant’s use in the Middle Ages as a dye plant for coloring wool. Overall, lithodora is a fascinating and beautiful plant with a rich history and interesting characteristics.

Flowers

Lithodora is known for its striking blue flowers that bloom in late spring to early summer. The flowers are small and bell-shaped, and they grow in clusters along the stems of the plant. The blue color of the flowers is intense and vibrant, making lithodora a standout in any garden. In addition to their beauty, lithodora flowers are also attractive to pollinators such as bees and butterflies, making them a great choice for anyone interested in supporting local wildlife. Overall, lithodora’s beautiful blue flowers are a key feature of this stunning plant and are sure to delight any gardener or admirer.

Why lithodora for my garden?

Lithodora is a great choice for your garden for a number of reasons. Firstly, its stunning blue flowers and evergreen foliage make it a beautiful addition to any landscape, adding a pop of color and visual interest. Secondly, lithodora is a drought-tolerant plant, meaning that it can thrive in dry and challenging growing conditions. This makes it an ideal choice for gardeners who want a low-maintenance plant that requires minimal watering and attention. Additionally, lithodora is a versatile plant that can be used as groundcover, edging, or in rock gardens and alpine settings. So no matter what type of garden you have, there is likely a place for a lithodora plant in it. Overall, lithodora is a great choice for anyone looking to add a beautiful, low-maintenance, and drought-tolerant plant to their garden.