Convolvulus cneorum – Planting & Care Guide

About Convolvulus cneorum

Convolvulus cneorum, commonly known as Silverbush, is a beautiful evergreen shrub admired for its silky silver-grey foliage and masses of pure white, trumpet-shaped flowers with soft yellow centres. Flowering from late spring into early summer, this Mediterranean native brings brightness, texture and elegance to borders, gravel gardens and coastal landscapes.

Its compact, rounded habit grows to approximately 60–90cm tall and wide, making it an excellent choice for sunny gardens where its shimmering foliage provides year-round interest. Drought tolerant once established, Convolvulus cneorum thrives in well-drained soils and is particularly suited to coastal locations and dry garden conditions.

Planting Guide

• Plant in full sun for the best flowering and healthiest growth.
• Choose a sheltered position with excellent air circulation.
• Prefers light, well-drained soil and dislikes heavy, waterlogged conditions.
• Suitable for sandy, chalky and loamy soils.
• Improve heavy clay by adding horticultural grit and organic matter before planting.
• Dig a hole twice the width of the root ball and the same depth.
• Carefully remove the plant from its container and gently loosen the roots.
• Position the plant so the top of the root ball sits level with the surrounding soil.
• Backfill with soil, firm gently and water thoroughly.
• Apply a light mulch of gravel around the base to help suppress weeds while improving drainage.
• Space plants approximately 75–90cm apart to allow room for mature growth.

Care & Maintenance

Convolvulus cneorum is an easy-care shrub once established.

• Water regularly during the first growing season.
• Once established, water only during prolonged dry spells.
• Avoid overwatering, particularly during winter.
• Feed lightly in spring with a balanced slow-release fertiliser.
• Avoid excessive feeding, which may encourage leafy growth at the expense of flowers.
• Keep the area around the plant free from weeds.
• Ensure good drainage at all times to prevent root problems.
• Avoid planting in areas where winter water tends to collect.
• Protect young plants from severe frosts in particularly exposed locations.

Pruning

Regular light pruning helps maintain a compact shape.

• Lightly trim after flowering to keep the shrub neat and bushy.
• Remove any dead, damaged or diseased branches as needed.
• Avoid cutting back into old woody stems, as regrowth can be slow.
• Remove faded flowers if desired, although deadheading is not essential.
• Light annual pruning encourages dense, healthy growth.

Growing Conditions

• Botanical Name: Convolvulus cneorum
• Common Name: Silverbush
• Plant Type: Evergreen shrub
• Mature Height: 60–90cm
• Spread: 60–90cm
• Flower Colour: Pure white with yellow centres
• Flowering Period: May to July
• Foliage: Silvery-grey evergreen leaves
• Growth Rate: Moderate
• Hardiness: Hardy throughout most of Ireland and the UK in well-drained locations

Ideal Uses in the Garden

Convolvulus cneorum is perfect for adding year-round colour and texture.

• Gravel gardens
• Mediterranean-style gardens
• Coastal gardens
• Rockeries
• Sunny borders
• Raised beds
• Patio containers
• Contemporary garden designs
• Wildlife-friendly gardens
• Drought-tolerant planting schemes

It pairs beautifully with Lavender, Rosemary, Santolina, Cistus, Euphorbia, Agapanthus and ornamental grasses.

Seasonal Interest

• Silvery evergreen foliage provides colour throughout the year.
• Flower buds develop in late spring.
• Abundant white flowers cover the shrub during late spring and early summer.
• The silver foliage remains attractive after flowering.
• Its compact form adds structure to the garden throughout winter.

Common Problems

Convolvulus cneorum is generally trouble-free when grown in suitable conditions.

• Poor drainage can lead to root rot.
• Excessive winter wet is the most common cause of plant decline.
• Severe frosts may damage young shoots in exposed gardens.
• Aphids may occasionally appear on tender new growth.
• Avoid heavy pruning into old wood, as recovery may be slow.

With its elegant silver foliage, brilliant white flowers and drought-tolerant nature, Convolvulus cneorum is an outstanding evergreen shrub for sunny gardens. Easy to grow and requiring minimal maintenance, it provides year-round beauty and is an excellent choice for borders, containers, coastal gardens and Mediterranean-style planting schemes

• Size
  5 Ltr pot

Kindly be aware when mix/ mixed/ assorted/ varieties is mention you will receive ONLY ONE plant/ item, which will be selected for delivery, photos may show different varieties available - which may also vary 

 
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