The Story
Plant Bio
Thuja occidentalis, commonly known as American arborvitae, is a cold-hardy coniferous evergreen native to the moist soils of eastern and central Canada and the northern United States. In its wild form, this species grows as a conical tree, providing dense year-round cover and nesting sites for local songbirds and small mammals.
'Concesarini' is a dwarf, ultra-low selection distinguished by its flat-topped, mounding habit and fine-textured, scale-like foliage that forms dense, layered sprays. The leaves emerge deep sage-green in spring and summer before transitioning to a rich blue-green with bronze tints during the winter months.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Shrub
Height
35"
Width
71"
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8
Water
Medium
Humidity
Prefers high atmospheric moisture
Lifespan
Long-lived
Native To
North America
Toxicity
Mildly toxic if ingested in large quantities
Bloom period
Spring
In flower about 3 months of the year
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Select a planting site in full sun to partial shade with moist, well-drained loamy soil.
- Dig a hole twice as wide as the root ball and of equal depth, ensuring the crown sits level with the surrounding soil.
- Backfill with native soil, tamp down gently to remove air pockets, and water thoroughly to settle the roots.
- Apply a two-inch layer of organic mulch around the base to retain moisture, keeping the mulch clear of the main stem.
Pro Tip
Clean out dead inner needles annually to prevent moisture retention and fungal tip blight within the dense canopy. Avoid shearing hard into old, leafless brown wood, as this conifer cannot regenerate new growth from bare stems.
Keep It Thriving
Care Guide
Do
- Water regularly during dry spells to maintain consistent soil moisture.
- Clear out accumulated dead needles from the interior of the dense mound each year.
- Provide light afternoon shade if planting in hot summer climates.
Don't
- Do not plant in poorly drained soils or areas prone to standing water.
- Do not prune back into bare, leafless wood where new growth cannot regenerate.
- Do not allow the plant to dry out completely, as it has low drought tolerance.
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Pest Check | ||||||||||||
| Spring Cleanup | ||||||||||||
| Winter Prep |
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
Pancake arborvitae questions
What zones can Pancake arborvitae grow in?
Pancake arborvitae is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Pancake arborvitae deer resistant?
Not reliably. Deer may browse Pancake arborvitae, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Pancake arborvitae bloom?
Pancake arborvitae typically blooms in spring through spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Pancake arborvitae need full sun?
Pancake arborvitae does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Thuja to compare

Green Giant Arborvitae
Thuja occidentalis 'Green Giant'

Emerald Green Arborvitae
Thuja occidentalis 'Emerald Green'

Degroot's Spire Arborvitae
Thuja occidentalis 'Degroot'

Smaragd Emerald Arborvitae
Thuja occidentalis 'Smaragd Emerald'

American Pillar Arborvitae
Thuja occidentalis 'American Pillar'

Fire Chief Arborvitae
Thuja occidentalis 'Fire Chief'
Keep exploring
Explore the genus
Hardy in your zone?
Grow Pancake 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.
































