Garden Scheme

Plant library  ·  Shrubs

Siberian Cypress

Microbiota decussata

Siberian Cypress is a low, spreading evergreen conifer that makes a broad, soft-textured groundcover rather than a vertical shrub. At about 1 foot tall and 6 feet wide, it keeps sightlines open while giving slopes, banks, and the front of larger shrub plantings a settled, year-round layer. Its feathery foliage brings a different texture beside bolder-leaved perennials or upright evergreens.

  • Deer resistant
Sunlight Partial Sun
Water Moderate
USDA zones 3–7
Spacing 4 ft
Mature size 1 ft tall, 6 ft wide

Placement and use

Use Microbiota decussata where its horizontal habit can travel across open ground: on a slope, along a bank, through a rock garden, or at the outer edge of a foundation bed. Set it back from narrow paths and steps so its mature spread does not crowd circulation or conceal hard edges. It can link spaced shrubs into a continuous lower layer, but allow taller plants behind it rather than placing it where their roots and dense shade will dominate the planting area.[1][2]

Spacing and mature footprint

Plant on 4-foot centers for a connected groundcover effect. Each plant can mature about 6 feet across, so neighboring plants will overlap rather than remain separate mounds; reserve a generous, uninterrupted bed width and avoid treating the spacing as the finished edge. In a long border, keep the planting line at least 3 feet from paving, lawn boundaries, or specimen plants that need clear access around their base.

Three plants set 4 ft apart, center to center; shaded circles show the 6 ft mature spread.

Sun, water, and soil

Place Siberian Cypress in partial sun with moderate moisture, preferably where the soil drains well after rain. It suits a cool, evenly moist planting pocket better than a low spot that stays wet. On a slope, tuck plants into the stable shoulder of the grade and leave enough open soil around each young plant for water to reach the root zone before the foliage knits together.[1][2]

Seasonal notes

The evergreen foliage bronzes in winter, adding coppery to purplish color when many beds are quiet. Treat that change as part of the design rather than a gap in winter structure: place it where a low warm-toned carpet will work with nearby stone, bark, or evergreen foliage. Spring growth restores the greener summer appearance.

Planning caveats

This plant is best reserved for USDA Zones 3 through 7 and for gardens with relatively cool summers. Hot, humid sites and poorly drained ground can limit its performance, so do not assign it to enclosed heat-reflecting beds or persistently damp drainage swales. Its deer-resistant habit can be useful at exposed bed margins, but it still needs enough room to spread without being cut back by path maintenance.[1][2]

Growing facts

Botanical name
Microbiota decussata
Type
Conifer
Category
Shrubs
Lifecycle
perennial
USDA hardiness zones
3–7
Sunlight
Partial Sun
Water
Moderate
Plant spacing
4 ft
Mature size
1 ft tall, 6 ft wide
Pollinator friendly
No
Deer resistant
Yes
Native to North America
No

References

  1. Microbiota decussata — North Carolina Extension Gardener Plant Toolbox
  2. Microbiota decussata - Plant Finder — Missouri Botanical Garden

Editorial content updated 2026-07-20.