Overview

Glandora diffusa (Lag.) D.C. Thomas is a plant with a prostrate, trailing habit in the genus Glandora, part of the Boraginaceae family, with evergreen foliage. Glandora diffusa (Lag.) D.C. Thomas grows best in full sun, and tolerates loam soils and alkaline pH. Its UK hardiness is rated H5. Suggested uses include ground cover, rock gardens and containers.

About

Glandora diffusa (Lag.) D.C. Thomas is a prostrate, trailing evergreen perennial that forms a low spreading cover and flowers April to June. It favours full sun on well-drained, alkaline loam and benefits from a sheltered, south-facing spot. Use it where a low, ground-hugging habit is required in rock gardens, containers or as a ground cover. Plants tolerate typical UK winters at H5 (hardy).

About the genus

Glandora is a genus of flowering plants in the family Boraginaceae, native to the western and central Mediterranean region; Morocco, Algeria, Portugal, Spain, France, Italy and Greece. It was split from Lithodora in 2008.

Wikipedia contributors, "Glandora", CC BY-SA 4.0 — Glandora

In the garden

A member of the Boraginaceae, Glandora diffusa (Lag.) D.C. Thomas grows with a prostrate, trailing habit and evergreen foliage, making it useful where a low, continuous layer of leaf is needed. It flowers from April to June and is most effective in sites receiving full sun and protection from cold exposure. Plant into well-drained loam that trends alkaline, and avoid heavy, waterlogged positions; the species prefers a free-draining root run. Siting on a south-facing slope or in a sheltered courtyard helps reduce winter stress and improves flowering in spring. The hardiness rating H5 indicates the plant withstands ordinary UK winter conditions when placed in a suitable position. Allow stems to trail into crevices in rock gardens or over the rim of containers to exploit its spreading habit. Recommended uses include ground cover beneath low shrubs, planted pockets in rockeries, and planted-down containers where a low, evergreen carpet is required. Expect reliable spring display with flowers appearing April to June.

Growing conditions

Best soil and position for Glandora

Sunlight

Full sun

Soil type

Loam

Soil pH

Alkaline

Soil moisture

Well-drained

Aspect

South-facing

Exposure

Sheltered

UK hardiness

H5

Plant details

Glandora diffusa (Lag.) D.C. Thomas size, habit and characteristics

Habit

Prostrate, trailing

Foliage

Evergreen

Suggested uses

Ground cover, rock gardens, containers

Care notes

Pruning and caring for Glandora diffusa (Lag.) D.C. Thomas

Propagation

Semi-ripe cuttings

Pest resistance

Resistant

Disease resistance

Resistant

Frequently asked questions