Herbarium Vivum Plant Specimen Archive · Linnaean Taxonomy
Archive Shade Crocosmia rubra
Monograph · Cabinet C · Drawer 07

“Pieris is loved as a shade-tolerant shrub that puts on a heavy show of bell-shaped blooms in early spring and keeps handsome foliage year-round. Interstella pieris really stands out with its vivid…”

Ericaceae · Syntype

Crocosmia rubra

Interstella Pieris: a Spring-Blooming Shrub for Shade Gardens

Collector: L. Linnaeus Locale: Formosa Date: 01 APR 2025 Catalog: HV-6237

Pieris is loved as a shade-tolerant shrub that puts on a heavy show of bell-shaped blooms in early spring and keeps handsome foliage year-round. Interstella pieris really stands out with its vivid deep pink spring flowers and colorful new growth. This compact broadleaf evergreen shrub stays small enough for foundation plantings and front-yard gardens — it won't grow tall enough to block your windows.

Interstella pieris produces a multitude of long-lasting deep pink flowers in early spring.
Interstella pieris produces a multitude of long-lasting deep pink flowers in early spring.

Common name: Interstella pieris; Interstella Lily of the Valley shrub; Interstella andromeda

Botanical name: Pieris japonica 'Farrowpjrf'

Origin: The species Pieris japonica is native to eastern Asia. Interstella was bred by Mike Farrow in Maryland and introduced by Proven Winners.

Flowers: Interstella pieris blooms in very early spring, with large, drooping clusters of bell-shaped ruby-pink flowers. The show can last for several months — pretty impressive!

Foliage: Similar to rhododendron leaves, pieris has long, narrow evergreen leaves with a leathery feel. Mature leaves are a deep, glossy green, but on Interstella pieris the new growth comes in a gorgeous reddish-copper before darkening over the summer.

Interstella pieris has evergreen leaves that look coppery red when they're new. They darken to a glossy green with time.
Interstella pieris has evergreen leaves that look coppery red when they're new. They darken to a glossy green with time.

Size and habit: This rounded shrub reaches three to four feet tall and wide.

Growing Interstella pieris

Exposure: Full sun to full shade

How to grow it: Pieris is happy in sun or shade. It likes the same soil conditions as rhododendrons and azaleas — moist, well-drained, and acidic. Make sure to give it consistent, ample water while it's getting established; after that, it can handle short dry spells. But definitely water it well in fall before winter sets in — that helps it resist those drying winter winds. An annual feeding with a fertilizer for acid-loving shrubs (like Holly-tone) can be helpful; just follow the package directions. With its naturally compact size, Interstella pieris shouldn't need pruning, but keep in mind that flower buds form during summer for the following spring's bloom. USDA Zones 5–8.

Images courtesy of Proven Winners