Double-Flowering Japanese Kerria, Japanese Rose, Easter Rose, Yellow Rose of Texas ‘Pleniflora’

View this plant in a garden

Category:

Shrubs

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Sun to Partial Shade

Light Shade

Foliage:

Deciduous

Foliage Color:

Unknown – Tell us

Height:

4-6 ft. (1.2-1.8 m)

6-8 ft. (1.8-2.4 m)

Spacing:

4-6 ft. (1.2-1.8 m)

Hardiness:

USDA Zone 3a: to -39.9 °C (-40 °F)

USDA Zone 3b: to -37.2 °C (-35 °F)

USDA Zone 4a: to -34.4 °C (-30 °F)

USDA Zone 4b: to -31.6 °C (-25 °F)

USDA Zone 5a: to -28.8 °C (-20 °F)

USDA Zone 5b: to -26.1 °C (-15 °F)

USDA Zone 6a: to -23.3 °C (-10 °F)

USDA Zone 6b: to -20.5 °C (-5 °F)

USDA Zone 7a: to -17.7 °C (0 °F)

USDA Zone 7b: to -14.9 °C (5 °F)

USDA Zone 8a: to -12.2 °C (10 °F)

USDA Zone 8b: to -9.4 °C (15 °F)

USDA Zone 9a: to -6.6 °C (20 °F)

USDA Zone 9b: to -3.8 °C (25 °F)

USDA Zone 10a: to -1.1 °C (30 °F)

USDA Zone 10b: to 1.7 °C (35 °F)

Where to Grow:

Unknown – Tell us

Danger:

Parts of plant are poisonous if ingested

Bloom Color:

Gold (yellow-orange)

Bright Yellow

Bloom Characteristics:

Unknown – Tell us

Bloom Size:

Unknown – Tell us

Bloom Time:

Mid Spring

Blooms repeatedly

Other details:

Unknown – Tell us

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Non-patented

Propagation Methods:

By dividing the rootball

From softwood cuttings

By simple layering

Seed Collecting:

Unknown – Tell us

Regional

This plant has been said to grow in the following regions:

Dothan, Alabama

Vincent, Alabama

Little Rock, Arkansas

Morrilton, Arkansas

Boulder Creek, California(2 reports)

Beacon Falls, Connecticut

Palm Coast, Florida

Atlanta, Georgia

Barnesville, Georgia

Canon, Georgia

Nicholls, Georgia

Stone Mountain, Georgia

Winder, Georgia

Godfrey, Illinois

Anderson, Indiana

Lexington, Kentucky

Morehead, Kentucky

Zachary, Louisiana

Orland, Maine

Aberdeen, Maryland

Cumberland, Maryland

Cambridge, Massachusetts

Halifax, Massachusetts

Mashpee, Massachusetts

Wayland, Massachusetts

Traverse City, Michigan

Olive Branch, Mississippi

Fenton, Missouri

Helena, Montana

Sparks, Nevada

Munsonville, New Hampshire

Newton, New Hampshire

Millville, New Jersey

Hurley, New York

Stony Brook, New York

Elizabeth City, North Carolina

Flat Rock, North Carolina

Hayesville, North Carolina

Raleigh, North Carolina(2 reports)

Wilsons Mills, North Carolina

Cincinnati, Ohio

Euclid, Ohio

Fort Jennings, Ohio

Haviland, Ohio

Middletown, Ohio

Enid, Oklahoma

Tulsa, Oklahoma

Ashland, Oregon

Portland, Oregon

Salem, Oregon(2 reports)

Lawrenceville, Pennsylvania

Wilkes Barre, Pennsylvania

Foster, Rhode Island

Hope Valley, Rhode Island

Conway, South Carolina

Crossville, Tennessee

Elizabethton, Tennessee

Nashville, Tennessee

Woodlawn, Tennessee

Austin, Texas(2 reports)

Dallas, Texas

Tomball, Texas

Weatherford, Texas

Ogden, Utah

Disputanta, Virginia

Galax, Virginia

Leesburg, Virginia

Lexington, Virginia

Midlothian, Virginia

Norfolk, Virginia

Staunton, Virginia

Virginia Beach, Virginia

East Port Orchard, Washington

Kalama, Washington

Parkwood, Washington

Port Orchard, Washington

Seattle, Washington

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Growing Kerria japonica

Latin Name Pronunciation: kare’-ee-ah

Kerria japonica, native to Eastern Asia and the only species in the genus Kerria, belongs to the Rosaceae (Rose) family. This easily grown, adaptable shrub displays showy, bright yellow flowers for two to three weeks in spring on slender stems that remain green in winter. Its fine foliage and upright, arching habit are attractive in shady borders and especially effective massed as a low, informal hedge.

Light: Kerria japonica prefers partial shade but can tolerate sunny locations if the ground is kept evenly moist. Avoid afternoon sun.

Fertilizer/Soil: Plants perform best in moderately fertile, well-drained soil. One light application of an organic fertilizer such as seaweed extract or fish emulsion can be given in early spring. Where soil is too rich, growth can be excessive with fewer blossoms.

Watering: Prefers moist, well-drained soil.

Pruning: Remove dead branches at any time. To rejuvenate an overgrown shrub, cut stems to around 12in high after flowering.

Japanese kerria

Size & Form

A 3 to 6 feet high and wide deciduous shrub.
Green stems are upright and arching producing a lots of fine, slender, zig-zag twigs.
Plants sucker freely and forms large colonies.

Tree & Plant Care

Best grown in partial shade in a well-drained, moist, organic rich, loamy soil. When grown in full sun the flowers bleach out.
Avoid over-fertilizing, this will promotes too much leaf growth and reduces flowering.
Overgrown plants can be rejuvenated by cutting plants to the ground after flowering.
Prune out dead tips each spring and remove diseased stems.

Disease, pests, and problems

Stems and leaves are susceptible to phomopsis stem blight and septoria leaf disease.
Stem tips can die back in harsh winters.

Native geographic location and habitat

Native to China and Japan.

Attracts birds & butterflies

Flowers attract butterflies and hummingbirds.

Bark color and texture

Bright green, arched stems stay green all year. Young stems are zig-zag and offer winter interest.

Leaf or needle arrangement, size, shape, and texture

Alternate, simple leaves 2 to 4 inches long; ovate to lance-shaped; leaf margins doubly serrate.
Bright green color changing to lemon yellow in the fall.

Flower arrangement, shape, and size

Flowers on old and new wood.
Showy 5-petaled, bright yellow flowers about 1 1/2 inches across, borne singly in late April and May.
Blooms sporadically throughout the summer.

Fruit, cone, nut, and seed descriptions

Not ornamentally significant.

Cultivars and their differences

Golden Guinea (Kerria japonica ‘Golden Guinea’): notable for the large 2-inch wide flowers that bloom for a long period.

Picta (Kerria japonica ‘Picta’): A variegated form with single yellow flowers.

Pleniflora (Kerria japonica ‘Pleniflora’, syn. ‘Flora Pleno’): A shrubby plant reaching 4-5 feet high and 6 to 9 feet wide. Golden yellow, double flowering, ball-shaped blooms. Flowers well in dense shade or full sun.

Kerria japonica growing shrub‎ of the genus Kerria also known as Japanese Kerria, Kerria japonica perennial deciduous plant used as ornamental plant, can grow in temperate or subtropical climate and growing in hardiness zone 4-9.

Leaves color green or variegate green with white, leaf shape in elliptic with serrated margin.

Kerria japonica flower

Flower color yellow with five petals to multi petals (full flower).

Kerria japonica for sale – Seeds or Plants to Buy

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Kerria japonicaKerria japonica plant careKerria japonica flowerGrowing Kerria japonicaKerria japonica hedge plant

How to grow Kerria japonica growing and care:

Well-drained soil, loamy soils, moist, cool winter

What is the best way to start growing?
Plant / Seed / Vegetative reproduction

Is it necessary to graft or use vegetative reproduction?
Yes, only if you want to grow specific cultivar full flower or varigate

Difficulties or problems when growing:
Invasive

When is the best time to plant?
Spring

Pests and diseases:
Aphids

Pruning season:
Autumn / Winter

How to prune:
Just for design

Size of the plant?
4-10 feet, 1.2-3 m

Growth speed in optimal condition:
Fast growing / Medium growing

Water requirement:
Average amount of water

Light conditions in optimal condition for growing:
Half Shade / Full Sun

Is it possible to grow as houseplant?
No

Growing is also possible in a planter /flowerpot / containers:
Yes

Blooming information

Bloom season?
Spring / Summer

General information about the flower:
Yellow flowers with five petals to multi petals (full flower).

Scientific name:

Kerria japonica

Blooming Seasons

  • Spring flowers
  • Summer flowers

Flower Colors

  • Yellow flower

Climate

  • Temperate Climate

Ornamental parts

  • Ornamental flower
  • Ornamental leaves
  • Ornamental plant

Plant growing speed

  • Average growing plants
  • Fast growing plants

Plant life-form

  • Deciduous
  • Perennial plant
  • Shrub

Plant uses

  • Hedging plants
  • Ornamental plants

Planting season

  • Spring Planting

Plants sun exposure

  • Full sun Plants
  • Part shade Plants

Watering plants

  • Big amount of water
  • Regularly water

Hardiness zone

  • Hardiness zone 4
  • Hardiness zone 5
  • Hardiness zone 6
  • Hardiness zone 7
  • Hardiness zone 8
  • Hardiness zone 9

Double Flowered Japanese Kerria flowers

Double Flowered Japanese Kerria flowers

(Photo courtesy of NetPS Plant Finder)

Double Flowered Japanese Kerria

Double Flowered Japanese Kerria

(Photo courtesy of NetPS Plant Finder)

Double Flowered Japanese Kerria in fall

Double Flowered Japanese Kerria in fall

(Photo courtesy of NetPS Plant Finder)

Height: 7 feet

Spread: 6 feet

Sunlight:

Hardiness Zone: 4b

Description:

A colorful spring blooming shrub featuring fully double puffy golden flowers on upright thin, colorful stems and light green leaves; spreads by suckering to form a natural mass; use in groupings in partial shade in the garden, grows quite tall

Ornamental Features

Double Flowered Japanese Kerria features showy yellow flowers along the branches from early to mid spring. It has light green foliage throughout the season. The narrow leaves turn lemon yellow in fall. The fruit is not ornamentally significant. The smooth bark and lime green branches add an interesting dimension to the landscape.

Landscape Attributes

Double Flowered Japanese Kerria is a dense multi-stemmed deciduous shrub with an upright spreading habit of growth. It lends an extremely fine and delicate texture to the landscape composition which can make it a great accent feature on this basis alone.

This is a high maintenance shrub that will require regular care and upkeep, and should only be pruned after flowering to avoid removing any of the current season’s flowers. Deer don’t particularly care for this plant and will usually leave it alone in favor of tastier treats. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Suckering

Double Flowered Japanese Kerria is recommended for the following landscape applications;

  • Mass Planting
  • General Garden Use

Planting & Growing

Double Flowered Japanese Kerria will grow to be about 7 feet tall at maturity, with a spread of 6 feet. It tends to be a little leggy, with a typical clearance of 1 foot from the ground, and is suitable for planting under power lines. It grows at a medium rate, and under ideal conditions can be expected to live for 40 years or more.

This shrub performs well in both full sun and full shade. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This is a selected variety of a species not originally from North America.

Names can be confusing especially in the world of plants. While the botanical or scientific names for plants are often difficult to remember, they are universally accepted and used. On the other hand, common names, while easier to pull from our memory and pronounce, can be a source of confusion. Take the word rose as an example. If you think of all the plants that we identify with the word rose as part of their common names you can see how messy name calling can get. Rose of Sharon, Christmas rose, desert rose, and moss rose are all called roses, however none of these plants are actually roses. The Japanese rose is yet another example. It is an old fashioned shrub that many call a rose. In fact, it is actually Kerria japonica. The golden yellow form can be found blooming in gardens in early spring as far north as zone 4. Several years ago I stumbled onto a variety that blooms white, a sharp contrast to the color and double blooms on the more common kerria. The color of the white form, Kerria japonica ‘Alisa’, works better in my garden. It blends well with the late daffodils, tulips and other flowering shrubs like rhododendron and azaleas. The branches of kerria are delicate and graceful, and since the blooms appear just as it is beginning to leaf out, it is a choice plant for adding elegant lines and a sense of movement to early spring flower arrangements.

One of the outstanding characteristics of this shrub is that it will bloom heavily in full to partial shade. In fact, it prefers shelter from full sunlight. It will grow in any well-drained soil.

Japanese Rose Kerria japonica Zone 4,5,6,7,8,9 Categories shrubs Bloom Time early spring Light Partial Shade/Shade Soil moist, well drained soil Plant Height 3 to 6 feet

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