Description
Quick Facts
- Common Name: Dwarf Blue Juniper
- Botanical Name: Juniperus squamata ‘Blue Star’
- Plant Type: Evergreen conifer shrub
- Mature Height: 40-60 centimetres
- Mature Spread: 80-100 centimetres
- Growth Rate: Slow
- Flowering Period: Insignificant flowers
- Foliage: Intense silvery-blue, needle-like
- Hardiness: Very hardy (RHS H7)
- Soil Requirements: Well-drained, tolerates poor soils
- Sun Requirements: Full sun
- Maintenance: Very low maintenance
Description
Meet the little jewel that’s about to transform your understanding of what a conifer can bring to the garden! Juniperus ‘Blue Star’ is pure garden magic in miniature – a perfectly formed, compact evergreen that seems to have captured a piece of winter sky and held it in its branches all year round.
This enchanting dwarf juniper forms the most delightful rounded cushion of the most intense silvery-blue foliage you’ve ever seen. Each tiny needle catches and reflects light like frost on a crisp morning, creating a shimmering, almost ethereal effect that changes throughout the day as the sun moves across the garden. The colour is so vivid and unusual that it stops visitors in their tracks, wondering if what they’re seeing is real.
What makes ‘Blue Star’ truly special is its perfect proportions and incredibly slow growth rate. This is a plant that will look exactly as you intended for years and years, requiring virtually no maintenance while providing constant structure and colour. It’s like having a living sculpture that never needs adjusting – just pure, reliable beauty that gets more characterful with age.
The compact size makes it perfect for smaller gardens, rockeries, containers, or as a striking accent plant in mixed borders. Despite its delicate appearance, this little beauty is tough as old boots, tolerating drought, poor soils, and harsh weather with remarkable resilience. It’s the perfect plant for anyone who wants maximum impact with minimum effort.
Caragh Garden Notebook
Planting: Plant in full sun for the most intense blue colouration – shade will cause the foliage to become more green. Excellent drainage is essential; add grit or sharp sand to heavy soils. Perfect for raised beds, rockeries, or containers with good drainage.
Spacing: Allow 80-100 centimetres between plants if using multiples, though single specimens often work best to showcase the unique colour. Excellent for container growing – choose pots at least 40cm wide.
Aftercare: Virtually maintenance-free once established. Extremely drought-tolerant and rarely needs watering after the first season. No pruning required – the natural shape is part of its charm. Occasionally remove any dead or damaged growth.
Companion Planting: Stunning contrast with golden or lime-green foliage plants. Beautiful with ornamental grasses like Stipa or Miscanthus. Pairs wonderfully with purple or pink flowers – try with heathers, lavender, or hardy geraniums. Excellent with white or cream flowers for a sophisticated scheme.
Irish Climate Notes: Completely hardy and thrives in our climate. The intense blue colour is particularly striking against our often grey skies. Excellent for coastal gardens as it tolerates salt spray. The evergreen structure provides valuable winter interest.
Design Tips: Perfect for Japanese-style gardens, excellent in gravel gardens, stunning in contemporary settings, and wonderful for adding year-round structure to perennial borders. The unique colour makes it an excellent focal point plant.