Description
Quick Facts
- Botanical Name: Thuja ‘Esmeralda’
- Common Name: Emerald Thuja
- Plant Type: Evergreen conifer
- Habit: Naturally narrow, upright, conical
- Height (approx.): 3–5m (slow to moderate)
- Spread (approx.): 0.8–1.5m
- Foliage: Dense, bright emerald-green; holds colour well through winter
- Position: Full sun to part shade
- Soil: Moisture-retentive but free-draining
- Hardiness: Very hardy
- Best For: Screening, privacy, formal structure, entrance planting, low-maintenance evergreen hedging
Description
If you want a screen that looks smart all year — and doesn’t need constant clipping — Thuja ‘Esmeralda’ is a brilliant choice.
It grows into a tidy, naturally conical shape, staying dense from the ground up with fresh, emerald-green foliage that keeps its colour through winter. The overall effect is clean and calm: instant structure, instant privacy, and a garden that feels more finished the moment it’s planted.
Use it to line a boundary, soften a fence, or create a formal rhythm through a border. It’s one of those plants that quietly does a lot of heavy lifting.
Caragh Garden Notebook
Planting & position
Thuja ‘Esmeralda’ is adaptable and will grow in full sun or part shade. For the best density, choose a bright spot and avoid very exposed, wind-scoured positions while plants are establishing.
Thuja ‘Esmeralda’ is adaptable and will grow in full sun or part shade. For the best density, choose a bright spot and avoid very exposed, wind-scoured positions while plants are establishing.
Soil & drainage
It prefers soil that holds moisture but drains freely.
It prefers soil that holds moisture but drains freely.
- Improve sandy soil with organic matter to help retain moisture.
- Improve heavy clay with compost and grit to prevent winter waterlogging.
Watering (especially year one)
Water well after planting and keep it consistently watered through the first growing season. Once established it’s fairly resilient, but it will stay greener and denser with deep watering during dry spells.
Water well after planting and keep it consistently watered through the first growing season. Once established it’s fairly resilient, but it will stay greener and denser with deep watering during dry spells.
Feeding
A spring mulch of compost (or a balanced feed) supports steady, healthy growth.
A spring mulch of compost (or a balanced feed) supports steady, healthy growth.
Pruning & maintenance
One of the best things about ‘Esmeralda’ is how little pruning it needs.
One of the best things about ‘Esmeralda’ is how little pruning it needs.
- Lightly clip in late spring/summer if you want sharper lines.
- Avoid cutting back into old brown wood, as conifers don’t always regenerate from it.
Hedging & spacing
For a dense screen, spacing depends on the size you’re planting, but as a general guide:
For a dense screen, spacing depends on the size you’re planting, but as a general guide:
- Plant 60–90cm apart for hedging (closer for faster coverage, wider for a more individual, sculptural look).
Design notes
- Perfect for modern gardens, formal layouts, and clean evergreen structure
- Looks great with gravel, stone, hydrangeas, grasses, and clipped shrubs
- Lovely as a pair to frame an entrance or gate





