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PRIMULA japonica (Redfield Strain)

Image of Primula japonica (Redfield Strain)

Jessie Keith

Family

Primulaceae

Botanical Name

PRIMULA japonica( Redfield Strain)

Plant Common Name

Japanese Primrose

Special Notice

This entry has yet to be reviewed and approved by L2G editors.

General Description

Lush, light green rosettes of leaves anchor the tall flower stems of Japanese primrose in mid- to late-spring. Its clusters of colorful purple-red blossoms are perched on tall, leafless stems that rise from the center of each rosette. This deciduous, clump-forming perennial is native to northern Japan where it lives in moist wooded areas. Today many cultivars are available with a wider range of colors and heights.

In early spring, the leaves of Japanese primrose are among the first to appear in the garden. They are light green, oblong to broadly spoon-shaped and have edges that are either scalloped or toothed. In mid-spring (or slightly later in cooler regions), tall stems arise from the center of each rosette with one to six separate whorls of flowers that appear at different heights along the stem. Wild forms have tubular purple-red flowers with yellow eyes, but highly cultivated Japanese primrose come in a wide range of colors, including white, pink, purple, yellow and rich red.

Grow Japanese primrose in full sun to partial shade and deep, moist, humus-rich soil. In full sun exposures the soil must be very moist, yet aerated. In colder areas, light protective mulch will help the plants overwinter. Plant Japanese primrose in moist woodlands, bog gardens or along the banks of streams and ponds. They gently self-sow and will naturalize if allowed to.

Characteristics

  • AHS Heat Zone

    8 - 1

  • USDA Hardiness Zone

    4 - 8

  • Sunset Zone

    A3, 2a, 2b, 3a, 3b, 4, 5, 6, 15, 16, 17

  • Plant Type

    Perennial

  • Sun Exposure

    Full Sun, Partial Sun, Partial Shade

  • Height

    16"-18" / 40.6cm - 45.7cm

  • Width

    12"-16" / 30.5cm - 40.6cm

  • Bloom Time

    Late Spring, Early Summer, Summer

  • Native To

    Japan

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Average

  • Soil type

    Clay, Loam

  • Growth Rate

    Fast

  • Water Requirements

    Average Water, Ample Water

  • Seasonal Interest

    Spring, Summer

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White, Yellow, Red, Purple, Violet

  • Flower Color Modifier

    Bicolor

  • Foliage Color (Spring)

    Green, Light Green

  • Foliage Color (Summer)

    Green

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Foliage Texture

    Coarse

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Bog Garden, Container, Feature Plant, Groundcover, Mixed Border, Rock Garden / Wall, Water Gardens

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Butterflies

  • Self-Sowing

    Yes