Garden Scheme

Plant library  ·  Conifers & Evergreens

Cryptomeria (Japanese Cedar)

Cryptomeria japonica

Cryptomeria, or Japanese cedar, is a fast-growing evergreen conifer that brings a soft-textured, year-round vertical presence to large-scale planting areas. Reaching about 60 feet tall and 25 feet wide, it needs a site sized for a mature tree rather than a narrow foundation bed. Its tall, conical form is most useful where permanent screening or a single strong focal point is wanted.

  • Deer resistant
Sunlight Full Sun
Water Regular
USDA zones 5–9
Spacing 20 ft
Mature size 60 ft tall, 25 ft wide

Placement and use

Use Japanese cedar along a broad property edge, behind a deep border, or in an open lawn where its height will not crowd roofs, overhead lines, or neighboring gardens. A row can form a substantial privacy screen, but allow room on both sides for future access and for nearby plants to receive light. Keep it well back from paths, patios, and driveways so expanding lower branches do not constrict circulation.

Spacing and mature footprint

Set plants 20 feet apart, center to center, for a screen or repeated planting. That interval is tighter than the eventual 25-foot spread, so neighboring crowns can create a continuous visual mass as they mature. Reserve a planting band at least as generous as the mature width, and avoid placing smaller permanent shrubs directly within the tree’s future branch zone.

Three plants set 20 ft apart, center to center; shaded circles show the 25 ft mature spread.

Sun, water, and soil

Place this conifer in full sun and provide regular water, particularly while it is establishing and during dry periods. A moist, well-drained planting area suits its long-term growth; avoid locations where the root zone repeatedly dries out. If the site is exposed in winter, give the tree a sheltered position away from persistent drying winds.[1][2]

Seasonal notes

The evergreen canopy holds its screening role through winter, so plan its shade and visual mass as a year-round condition rather than a summer-only feature. Soft green foliage may take on bronze tones in harsh cold, adding seasonal color without opening the screen. Leave enough clearance around the trunk and branch spread to inspect the tree and maintain adjacent planting beds in every season.[1][2]

Planning caveats

This is a long-lived, large conifer for USDA Zones 5 through 9, not a plant to tuck into a tight side yard or narrow planting strip. Its mature height can dominate nearby rooms, gardens, and small trees, especially on compact lots. Choose the final location carefully, with a broad root-zone area and enough separation from structures to preserve access as the tree gains scale.

Growing facts

Botanical name
Cryptomeria japonica
Type
Conifer
Category
Conifers & Evergreens
Lifecycle
perennial
USDA hardiness zones
5–9
Sunlight
Full Sun
Water
Regular
Plant spacing
20 ft
Mature size
60 ft tall, 25 ft wide
Pollinator friendly
No
Deer resistant
Yes
Native to North America
No

References

  1. Japanese Cryptomeria - Cryptomeria japonica — North Carolina Extension Gardener Plant Toolbox
  2. Cryptomeria japonica - Plant Finder — Missouri Botanical Garden

Editorial content updated 2026-07-20.