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syn: Lithodora White Star, Gromwell

Lithodora diffusa Star

$8.00

Lithodora Star, also known as Lithodora diffusa ‘Star’, is a low-growing, evergreen shrub prized for its vibrant, star-shaped, blue and white flowers. It forms a dense mat of small, lance-shaped leaves and is ideal for rock gardens, slopes, and containers. This plant thrives in well-drained, acidic soil and prefers full sun to partial shade.

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Detailed Description:
  • Appearance:

    Lithodora Star is a compact, evergreen shrub with a prostrate, ground-hugging habit. It has small, lance-shaped, glossy green leaves that are slightly hairy. The standout feature is its profuse, star-shaped flowers, typically a deep blue with a white edge, creating a striking visual effect. 

  • Flowers:

    The flowers appear in late spring and early summer, and sometimes sporadically throughout the season, offering a long period of interest. The unique star-like pattern is created by the white edges of the blue petals. 

  • Growing Conditions:

    Lithodora Star prefers well-drained, acidic soil and a sunny location. It can tolerate some shade, especially in hotter climates. 

  • Size:

    It typically grows to a height of 6-9 inches (15-22 cm) and spreads to a width of 12-18 inches (30-45 cm). 

  • Uses:

    This plant is excellent for rock gardens, slopes, borders, and containers. Its ground-hugging nature makes it a great choice for cascading over walls or as a groundcover. 

  • Care:

    Lithodora Star is relatively low-maintenance. It benefits from pruning after flowering to encourage a compact shape and potentially more blooms. Ensure good drainage to prevent root rot. 

  • Hardiness:

    It is generally considered hardy and can tolerate normal winter conditions, though protection from severe frosts may be needed in colder climates. 

  • Attracts Pollinators:
    The flowers are attractive to butterflies and other pollinators, making it a good addition to pollinator-friendly gardens. 

Last Updated on September 23, 2025 by admin

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Cultivation Guide

Lithodora Star (Lithodora diffusa ‘White Star’) is a low-growing, evergreen groundcover known for its profuse white flowers. It thrives in well-drained soil, full sun to partial shade, and prefers slightly acidic conditionsRegular watering is important, especially during hot, dry periods, but avoid overwatering to prevent root rot. 

Detailed Cultivation:
  • Sunlight:

    Lithodora ‘White Star’ prefers full sun in cooler climates and some afternoon shade in warmer areas. 

  • Soil:

    Well-drained soil is crucial; avoid heavy clay. A slightly acidic to neutral pH (6.0-7.0) is ideal. 

  • Watering:

    Water regularly, especially during dry spells, but don’t let the soil become soggy. 

  • Fertilizing:

    Generally, Lithodora doesn’t require much fertilizer. If leaves turn pale greenish-yellow, a light application of an acidic fertilizer may be beneficial. 

  • Planting:

    Spring or summer is the best time to plant Lithodora Star. Amend the soil with organic matter to improve drainage and fertility. 

  • Pruning:

    Light pruning after flowering can help maintain shape and encourage bushier growth. 

  • Hardiness:

    Lithodora ‘White Star’ is generally hardy in USDA zones 6-10. 

  • Pest and Diseases:
    Lithodora is relatively pest-free, but watch for signs of root rot if overwatered.

Last Updated on September 23, 2025 by admin

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Unit

2.5 Litre HP

Grade

100mm, 300mm width

Annual Production

400

Supplier

Payless Plants

Comment

Available stock can vary, all the way down to none available, depending on sales demand and where we are in the production cycle.

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