Japanese Pieris plant profile
Pieris japonica
A perennial shrub for full sun.
Last updated .
When to plant
When to plant Japanese Pieris
Plant this broadleaf evergreen in spring or early fall, when the soil is warm enough for root growth but the plant is not under summer heat stress. Extension guidance favors these two windows over mid-winter for broadleaf evergreens, with early fall allowing roots to establish before the ground freezes.
The calendar shows this cited seasonal window as an approximate band. It does not convert the season into frost-adjusted dates.
Open Japanese Pieris in my garden calendarShows the source-backed planting season, not frost-adjusted dates.
Growing conditions
- Sun
- Full sun
- Soil pH
- 5 to 6
- Lifecycle
- Perennial
- Spacing
- 72 to 96 in apart
- Hardiness
- Zones 4b to 8bFind my hardiness zone
Common problems
Watch for these
Also watch for: lace bugs, chlorosis in alkaline soil, all parts poisonous.
Next steps
Continue with Japanese Pieris
Evidence trail
Evidence behind this profile
Original extension and institutional publications behind the planting, care, and safety facts on this page.
- Pieris japonica (Japanese Pieris, Lily-of-the-Valley Shrub)
North Carolina Extension Gardener Plant Toolbox (NC State Extension). Supports general reference. Checked 2026-06-18.
- Planting Shrubs Correctly (HGIC 1052)
Clemson Cooperative Extension, Home & Garden Information Center. Supports planting reference. Checked 2026-06-18.
- Toxic and Non-Toxic Plants: Pieris (Pieris japonica) entry
ASPCA Animal Poison Control Center. Supports pet-safety verdicts for dogs and cats. Checked 2026-07-18.