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Interstella® Lily of the Valley shrub Pieris japonica

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  • Full Shade
  • Part Sun to Sun

The optimum amount of sun or shade each plant needs to thrive: Full Sun (6+ hours), Part Sun (4-6 hours), Full Shade (up to 4 hours).

Flower Season
  • Spring
  • Winter
Mature Size
48" 48"
36 - 48"
36 - 48"

This plant is hardy in zones 5 - 8

Hardy Zones

Zones are based on the lowest average temperature an area is expected to receive during the winter. They are used to determine whether a plant is likely to be perennial in your area. If your zone is equal to or higher than the zone listed for the plant, it will be hardy for you and thrive in your climate.

  • 5
  • 6
  • 7
  • 8
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  • Details


    Distinctive, rich color makes Interstella lily of the valley shrub out of this world!

    Forgive us for using maybe too many superlatives, but this plant earns them: Interstella pieris is one of the earliest blooming plants, starting its display of beautiful, bell-like, ruby-colored flowers before the calendar (and the weather!) even say its spring. And there are hundreds of them, dangling delicately from fine stems against a gorgeous evergreen backdrop. The flowers persist for a very long time - two months or more, often - and when they are done, the plant begins a dazzling display of star-like bright red new growth. So, obviously, it's beautiful, but there's more: this is possibly the most shade tolerant flowering shrub, blooming well even in very low light conditions, and it's deer resistant, too. 

    Top reasons to grow Interstella pieris:

    - lantern-like blooms are delicately colored with a deep ruby tone.

    - extremely early to bloom, and blooms are very long lasting.

    - one of the best shrubs for shade.

    Long Blooming
    Winter Interest


    Plant Type: 
    Shrub Type: 
    Height Category: 
    Garden Height: 
    36 - 48 Inches
    36 - 48 Inches
    36 - 48 Inches
    Flower Colors: 
    Flower Colors: 
    Flower Shade: 
    Ruby-red and white
    Foliage Colors: 
    Foliage Colors: 
    Foliage Shade: 
    Green, with red new growth
    Container Role: 

    Plant Needs

    Light Requirement: 
    Full Shade
    Light Requirement: 
    Part Sun to Sun
    Maintenance Category: 
    Blooms On: 
    Old Wood
    Bloom Time: 
    Late Winter
    Bloom Time: 
    Early Spring
    Bloom Time: 
    Mid Spring
    Bloom Time: 
    Late Spring
    Hardiness Zones: 
    5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
    Water Category: 
    Soil Fertility Requirement: 
    Average Soil
    Soil PH Category: 
    Acidic Soil
    Border Plant
    Mass Planting
    Specimen or Focal Point
    Uses Notes: 

    Pieris makes an outstanding specimen, especially in shaded areas that can be difficult to fill with something truly special. However, with its beautiful evergreen foliage, it lends itself to being planted just about anywhere. 

    Maintenance Notes: 

    Pieris is related to rhododendrons and as such, requires similar conditions: acidic soil, moist but well drained soil, and protection from the worst of winter winds, especially in the colder parts of its range. A 2-3"/5-7cm layer of mulch is very beneficial.

    This plant should not be regularly pruned or cut back, but you may selectively remove branches as needed to develop the shape you wish.

    Fun Facts: 

    This plant goes by a few different common names: andromeda, Japanese andromeda, lily of the valley shrub, and Japanese pieris. Its scientific name, Pieris, derives from the collective name of the muses of Greek mythology. Very fitting for such a beautiful shrub!

    Interstella® Pieris japonica 'FARROWPJRF' USPPAF, Can PBRAF
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