The Story
Plant Bio
Cedrus deodara, native to the western Himalayas, is a large evergreen conifer featuring horizontal branching with gracefully drooping branchlet tips. Its slender needles are arranged in dense spiral clusters along short shoots, accompanied by barrel-shaped cones that mature over the course of a year.
'Bill's Blue' is distinguished by its intense powder-blue foliage and a broadly pyramidal form with ascending branch tips that nod only subtly at the ends. It maintains rich glaucous blue-grey color throughout the year and exhibits a slightly more disciplined habit than the species.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Tree
Height
420"
Width
240"
Light
Full Sun, Partial Sun
Zones
7, 8, 9, 10
Water
Low (when established)
Humidity
Moderate to High
Lifespan
Perennial
Native To
Western Himalayas
Toxicity
Non-toxic
Bloom period
Fall
In flower about 3 months of the year
Planting
How to Grow
- Select a planting site in full sun to light shade with deep, well-drained soil.
- Dig a hole twice as wide as the root ball and equal in depth, keeping the root crown level with surrounding soil.
- Backfill with native soil, firm gently to eliminate air pockets, and water thoroughly.
- Apply a 3-inch layer of organic mulch around the base, keeping it clear of the trunk.
Pro Tip
Plant in well-drained soil and avoid cutting back into older, leafless wood, as deodar cedars cannot regenerate shoots from bare timber.
Keep It Thriving
Care Guide
Do
- Ensure soil drains freely to prevent root rot diseases.
- Water deeply during the first two growing seasons until the root system establishes.
- Prune only dead, damaged, or crossing branches in late winter.
Don't
- Do not plant in heavy, poorly drained clay or standing water.
- Do not prune back into old, bare wood lacking foliage.
- Do not over-fertilize with heavy applications of nitrogen.
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Pest Check | ||||||||||||
| 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
Bill's Blue Deodar Cedar questions
What zones can Bill's Blue Deodar Cedar grow in?
Bill's Blue Deodar Cedar is hardy in USDA Zones 7–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Bill's Blue Deodar Cedar deer resistant?
Yes — Bill's Blue Deodar Cedar is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Bill's Blue Deodar Cedar bloom?
Bill's Blue Deodar Cedar typically blooms in fall through fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Bill's Blue Deodar Cedar need full sun?
Bill's Blue Deodar Cedar does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Bill's Blue Deodar Cedar drought tolerant?
Yes — once established (usually after the first full season), Bill's Blue Deodar Cedar handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Cedrus to compare
Keep exploring
Explore the genus
Hardy in your zone?
Grow Bill's Blue Deodar Cedar 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.







