Also known as Arborvitae · 2.8k gardener saves

Thuja: the varieties gardeners actually grow

Thuja, the genus most gardeners know as arborvitae. We track 47 varieties; these are the ones gardeners actually save and plant, ranked by real saves rather than catalog marketing. Each links to full care, bloom, and live price data.

47 varietiesZones 4–9Mostly full sun

The 12 most-saved Thuja varieties

Of 47 in the catalog — ordered by how many gardeners actually grow them.

Browse all 47 Thuja varieties →

How to grow Thuja

What the Thuja varieties in our catalog actually agree on — drawn from the care records of the 40 most-grown of them, not from a generic template.

The Thuja year

  • PruneFebruary, March and June80% of varieties

    Lightly shear or shape in late winter/early spring; avoid cutting into old wood

  • FertilizeMarch78% of varieties

    Apply balanced, slow-release fertilizer as new growth begins

  • Check for PestsMay–July70% of varieties

    Watch for bagworms and spider mites, especially during hot, dry weather.

  • MulchMarch and October68% of varieties

    Maintain 2-3 inches of mulch to retain moisture and regulate temperature

  • PlantMarch, April, September and October63% of varieties

    Plant in early spring or early fall for best establishment

  • Winter PrepOctober and November43% of varieties

    Tie up branches loosely with twine to prevent snow/ice damage and splitting

Do

  • Water regularly during dry spells 🌱
  • Mulch to conserve moisture
  • Mulch annually to conserve moisture
  • Water regularly during dry periods 🌱
  • Apply mulch annually to conserve moisture

Avoid

  • Avoid overwatering to prevent root rot ❌
  • Avoid overwatering ❌
  • Don’t prune in late summer
  • Never plant in poorly drained soil

What goes wrong with Thuja

ProblemWhat you'll seeWhat to do
AphidsSticky honeydew on foliageUse insecticidal soap or neem oil
BagwormsWebbing and defoliationApply Bacillus thuringiensis (Bt) or remove manually
Spider MitesFine webbing on foliage, stippled or yellowing needles.Spray forcefully with water to dislodge them. Use insecticidal soap or horticultural oil for heavier infestations.
Spider mitesFine webbing on foliageUse insecticidal soap or neem oil
Root rotWilting and browning needlesImprove drainage and reduce watering
Root RotWilting, browning of foliageImprove drainage and reduce watering
Cedar-Apple RustOrange spots on foliageRemove infected leaves and apply fungicide

Making more Thuja

Cuttings

  1. Select healthy semi-hardwood stems in late summer.
  2. Cut 4-6 inch segments and remove lower leaves.
  3. Dip in rooting hormone and plant in moist soil.
  4. Keep soil moist and place in indirect sunlight.
  5. Roots develop in 6 weeks.

Layering

  1. Choose a low-growing branch in early spring.
  2. Wound the stem slightly and bury a section in soil.
  3. Secure with a pin or stone.
  4. Water regularly and wait for roots to form in 3-6 months.

Thuja questions

How many types of Thuja are there?

The Sow catalog tracks 47 distinct Thuja varieties. The most popular — ranked by 2.8k real gardener saves — are shown first above.

What zones does Thuja grow in?

Across its varieties, Thuja covers USDA Zones 4–9. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.

When does Thuja bloom?

Most Thuja varieties bloom in spring, late spring, early spring. Staggering early, mid, and late varieties extends the genus's season in one bed.

Which Thuja should I choose?

Start from the most-saved varieties above — popularity across thousands of gardens is a strong signal of reliability — then filter by your zone and sun. In the Sow app you can preview any of them in a photo of your actual yard before you buy.

Keep exploring

Design with Thuja in your own yard

Snap a photo of your space and see these varieties planted in it — sized correctly, matched to your zone, with care reminders included.

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