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Hides soil, stones and minor design dramas like a professional 🕵️
Family: Cupressaceae · Pot diameter: 13cm · Height: approx. 20cm
Juniperus ‘Blue Carpet’ spreads an impressive silver-blue layer that follows the ground and spills attractively over rocks and low edges. Long, almost horizontal branches overlap in dense tiers, providing rich texture and cool colour throughout the year. It turns a difficult bare patch into a resolved composition and gives a young space an immediate sense of maturity, while retaining enough visible movement to avoid becoming a featureless mat.
It is especially effective on slopes, in rock gardens and across broad front-of-border zones where its characteristic flow has room to develop. Beside upright grasses, dark evergreens or warm-toned stone, the blue foliage appears even clearer.
The RHS Award of Garden Merit recognises Juniperus squamata ‘Blue Carpet’ as a reliable silver-blue spreading conifer in suitable conditions.
Long silver-blue branches travel close to the ground, overlap in layers and turn a bare slope into a cool-toned living carpet.
Long horizontal shoots overlap in visible tiers, covering ground without losing their directional flow.
Dense wax-coated foliage creates a cool surface that reads strongly against warm stone.
Branches can travel over low walls and rocks, revealing the layered architecture from the side.
Why you will love it: it resolves broad, difficult ground with year-round colour while still looking like a living network of branches.
Give it full sun and broad horizontal room on a slope, over rocks or at the front of a border, with excellent drainage throughout the root zone.
Vertical grasses and compact dark evergreens make the horizontal silver flow appear more deliberate.
Juniperus ‘Blue Carpet’ performs best in full sun; this exposure also keeps its wide silver-blue horizontal carpet clearly defined.
Water Juniperus ‘Blue Carpet’ thoroughly while it establishes. Once rooted, allow the upper soil to dry modestly before soaking the spreading root area evenly.
Juniperus ‘Blue Carpet’ is a hardy evergreen conifer. It is cold hardy in drained ground; waterlogged winter soil is a greater risk than ordinary frost.
This groundcover is ornamental rather than edible; wear gloves when lifting or trimming its resinous branches and sharply pointed foliage.
Plant in full sun on a slope, by stone or along a raised edge, allowing the silver-blue branches to extend horizontally.
For Juniperus ‘Blue Carpet’, use sharply drained soil, especially on a slope or beside stone where the branches will spread. On flat ground, confirm that storm water clears beneath the low branches.
In its first season, water across the planted area and just beyond the branch tips whenever the upper soil begins to dry.
Once established, allow a modest dry interval before watering slowly across the complete horizontal spread.
A broad trough or raised planter displays the long horizontal shoots best. Let them spill naturally, and keep the low crown clear of collected water.
Feed lightly in spring only if growth is weak; excessive nitrogen produces soft, uneven extension across the low carpet.
Redirect a long leader where possible, or shorten it at a side branch without levelling the varied outer edge.
Lift fallen leaves from beneath the low branches after winter and remove only damaged or dead inner growth.
The first branches remain visibly separate while the plant concentrates on rooting.
Long side shoots travel outwards and begin to overlap, closing bare spaces.
A broad 1.5–2m network follows the ground, with layered ends spilling over edges rather than forming a domed shrub.
A wide horizontal carpet forms as long silver-blue branches travel close to the ground and overlap in successive layers.
Cold weather can lend the silver-blue foliage a muted steel or purplish cast. Successive horizontal layers become clearer as the longest branches extend.
What to expect after planting: The first branches remain visibly separate while the plant concentrates on rooting. Long side shoots travel outwards and begin to overlap, closing bare spaces.
Around 1962, Jac. Schoemaker at Boskoop in the Netherlands selected a low-growing form of Juniperus squamata ‘Meyeri’. The new cultivar arose from mutated growth and was named ‘Blue Carpet’.
It retained the parent cultivar’s intense silver-blue foliage, but changed the way the plant spreads. Its branches grow low and wide, forming a dense, gently undulating layer.
That difference in habit gave the selection its own role as a ground-covering conifer. The name “Blue Carpet” describes both its colour and its low crown, connecting its origins in ‘Meyeri’ with the form it develops in the garden.
Leading shoots extend sideways and their branches overlap, producing coverage through architecture rather than extremely short growth.
Surface wax scatters light, so rubbing, deep shade or weather can make a small area appear greener without altering its identity.
Answers for siting, watering and containing ‘Blue Carpet’ without spoiling its flow.
A sunny slope, raised edge or position beside stone lets the long silver-blue branches travel and overlap in view. Sharply drained soil protects that low framework.
Soak the planted area and the soil just beyond it whenever the upper layer begins to dry. This encourages roots to follow the widening branches.
Allow a modest dry interval, then water slowly across the complete spread. Mature plants need less frequent attention than newly rooted ones.
Use a broad trough or outdoor planter that permits shoots to spill naturally over an edge. A narrow upright pot constricts the horizontal effect.
No. Guide the longest leader or shorten it selectively at a side branch, preserving the varied flowing outline.
Cool conditions may shift the silver-blue surface towards muted steel or purple. Fresh spring growth restores its clearer colour.
