How to Grow Lawson Cypress Columnaris
Wikimedia Commons
Lawson Cypress Columnaris
Chamaecyparis lawsoniana 'Columnaris'
treeLawson Cypress Columnaris is a narrow, columnar evergreen conifer prized for its compact, pencil-like growth habit and soft, fine-textured blue-gray foliage. This cultivar is ideal for formal landscapes, screens, and container growing where space is limited. It maintains its narrow form naturally without extensive pruning.
When should you plant Lawson Cypress Columnaris in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Lawson Cypress Columnaris timeline · Pittsburgh, PA (Zone 6b)
-
Plant Lawson Cypress Columnaris
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Lawson Cypress Columnaris
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Lawson Cypress Columnaris dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5b-9a; best performance in zones 6-8
Sign up free to see if Lawson Cypress Columnaris grows in your zone — and get a personalized planting timeline.
Get my Lawson Cypress Columnaris timeline →Growth Stages
Establishment
1-2 yearsYoung tree with small, narrow columnar form; foliage is soft and fine-textured with blue-gray coloring
Water regularly and deeply; mulch around base (2-3 inches) to retain moisture and regulate soil temperature; protect from harsh winds and drying conditions; avoid transplanting once established
Juvenile Growth
2-4 yearsTree develops its characteristic narrow, pencil-like form; foliage becomes denser; height increases gradually
Continue consistent watering during dry spells; minimal pruning needed; remove any wayward branches; watch for spider mites in hot, dry conditions
Mature Form
Ongoing; reaches full maturity by year 5-7Tree reaches full columnar shape with dense, fine foliage; typically 20-25 feet tall but only 2-4 feet wide at maturity
Water during extended drought; light pruning in spring to maintain form if needed; monitor for pest issues; provide afternoon shade in hot climates
Established
Long-term (tree lives 50+ years)Full-sized mature specimen with stable columnar form and dense gray-blue foliage throughout
Minimal maintenance required; occasional light shaping in spring; maintain mulch layer; ensure good drainage; watch for spider mites and root rot in poorly drained sites
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Spray with water to increase humidity; use miticide if severe; avoid excessive heat and drought stress
-
Hand-pick bags in winter; apply Bacillus thuringiensis (Bt) in spring when caterpillars emerge; use spinosad or insecticidal soap
-
Prune out affected tips; maintain tree vigor through proper watering; insecticide spray in spring targeting new growth
-
Ensure excellent drainage; avoid overwatering; do not plant in poorly drained sites; remove and destroy severely affected trees
-
Prune out dead or diseased branches; sterilize pruning tools between cuts; avoid wounding tree; improve air circulation
Uses
Formal Landscape Specimen
HouseholdThe narrow columnar form makes it ideal for formal gardens, entryway plantings, and creating vertical emphasis without consuming much space. Perfect for framing architectural features or creating living screens. [source]
Evergreen Screen and Privacy
HouseholdWhen planted in groups, Columnaris creates an effective year-round privacy screen or windbreak while maintaining a refined, elegant appearance. Excellent for creating boundaries without the bulk of wider evergreens. [source]
Cut Foliage for Floral Arrangements
CraftThe soft, fine-textured blue-gray foliage provides beautiful texture and color for fresh and dried flower arrangements, wreaths, and holiday decorations. The foliage holds well and adds sophistication to arrangements. [source]
Shelter for Birds and Wildlife
WildlifeThe dense, evergreen foliage provides excellent shelter and nesting habitat for songbirds and other wildlife throughout the year. Creates protected microhabitats in gardens. [source]
Container and Patio Gardening
HouseholdThe slow growth and narrow form make it well-suited to large containers on patios, decks, and balconies, where it adds structure and year-round interest without outgrowing the space. [source]
Harvest Tips
Lawson Cypress Columnaris is an ornamental conifer, not harvested for food or traditional harvest. However, foliage can be occasionally cut for floral arrangements or dried arrangements during the growing season without harming the tree. Small branches may be trimmed in spring for shape maintenance. Avoid heavy pruning.
Fun Facts
- 🌱 Lawson Cypress is native only to a small region in northern California and southwestern Oregon, and is sometimes called the Port Orford Cedar, though it is not a true cedar.
- 🌱 The 'Columnaris' cultivar was selected specifically for its naturally narrow, pencil-like form, which can reach 25 feet tall but only 2-4 feet wide—making it one of the narrowest columnar conifers available.
- 🌱 The foliage of Lawson Cypress contains aromatic oils and turns deeper blue-gray in cooler months, adding seasonal interest to the landscape.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Lawson Cypress Columnaris planting timeline
Tell us your zip code and we'll calculate exactly when to start Lawson Cypress Columnaris seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Lawson Cypress Columnaris timeline →