Primo Arborvitae
Thuja occidentalis 'Primo'
Essentials
At a Glance
Plant Type
Shrub
Height
36 inches
Width
36 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7
Water
Moderate
Humidity
Prefers moderate humidity
Lifespan
50+ years
Native To
North America
Toxicity
Toxic if ingested
The Story
Plant Bio
A compact and dense evergreen shrub, ideal for hedges and privacy screens. Primo has a uniquely tight growth habit and a rich green foliage that holds color well throughout the year.
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Select a sunny location with well-draining soil to ensure healthy growth.
- Tuck seeds or cuttings into moist soil, keeping them evenly moist for best germination.
- Water regularly during the first year to establish strong roots.
- Apply a balanced fertilizer in early spring to promote lush growth.
- Prune lightly in late winter to maintain shape and remove dead branches.
- Mulch around the base to retain moisture and suppress weeds.
Pro Tip
Use acidic, well-drained soil for optimal growth and vibrant foliage.
Keep It Thriving
Care Guide
Do
- Water deeply during dry spells 🌱
- Prune to shape and remove dead branches
- Apply mulch annually to conserve moisture
- Fertilize in early spring with a balanced fertilizer
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t prune in late summer or fall
- Refrain from planting in heavy clay or poorly drained soil
- Avoid excessive fertilization which can harm the plant
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Pest Check | ||||||||||||
| Plant | ||||||||||||
| Prune |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Primo Arborvitae questions
What zones can Primo Arborvitae grow in?
Primo Arborvitae is hardy in USDA Zones 4–7. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Primo Arborvitae deer resistant?
Not reliably. Deer may browse Primo Arborvitae, especially tender spring growth — plan on repellents or fencing where pressure is high.
Does Primo Arborvitae need full sun?
Primo Arborvitae does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Primo Arborvitae drought tolerant?
Yes — once established (usually after the first full season), Primo Arborvitae handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Thuja to compare
Green Giant Arborvitae
Thuja occidentalis 'Green Giant'
Emerald Green Arborvitae
Thuja occidentalis 'Emerald Green'
Emerald Green Arborvitae
Thuja occidentalis 'Smaragd Emerald'
American Pillar Arborvitae
Thuja occidentalis 'American Pillar'
Degroot's Spire Arborvitae
Thuja occidentalis 'Degroot'
Eastern Arborvitae Western Arborvitae
Thuja occidentalis 'Columbia'
Keep exploring
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Grow Primo Arborvitae with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
