Japanese Spirea, Japanese Meadowsweet, Maybush
Spiraea japonica 'Shirobana'

Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Spiraea (spy-REE-ah) (Info)
Species: japonica (juh-PON-ih-kuh) (Info)
Cultivar: Shirobana

Category:

Shrubs

Height:

36-48 in. (90-120 cm)

Spacing:

36-48 in. (90-120 cm)

4-6 ft. (1.2-1.8 m)

Hardiness:

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)

Sun Exposure:

Full Sun

Danger:

Unknown - Tell us

Bloom Color:

Pink

Rose/Mauve

White/Near White

Bloom Time:

Mid Spring

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Foliage:

Deciduous

Other details:

This plant is attractive to bees, butterflies and/or birds

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

Propagation Methods:

From softwood cuttings

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Regional

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

Pelham, Alabama

Martinez, California

Logansport, Indiana

Lonaconing, Maryland

Midland, Maryland

Nantucket, Massachusetts

Dexter, Michigan

Kansas City, Missouri

Munsonville, New Hampshire

Cobleskill, New York

Delmar, New York

Pittsford, New York

Chapel Hill, North Carolina

Waxhaw, North Carolina

Tulsa, Oklahoma

Mountain Top, Pennsylvania

Summerville, South Carolina

Concrete, Washington

Morgantown, West Virginia

show all

Gardeners' Notes:

6
positives
0
neutrals
0
negatives
RatingContent
Positive

On Jul 5, 2014, bobbieberecz from Concrete, WA wrote:

I have this shrub in a mixed flower bed----for variety and interest. My favorite things about this plant are: It adds a delicate form to the garden's bolder plants like roses, lilies, phlox, etc. It's a "cloud" of continuous blooming fluff with both pink and white blooms. My shrub has by far and way more white blooms than pink, but I've seen the opposite. It doesn't reseed like my other spireas. I cut it down to 1 foot in the fall and it seems to thrive on the abuse by growing and blooming even bigger and better the next year! Even after a sharp shaving of all the brown flowers, I thought it was done for the year but to my surprise it quickly popped out enough blooms to make a show. Never needs staking. The cons are few: Not enough combination of pink and white blooms; dead-head... read more

Positive

On Jun 30, 2011, JonthanJ from Logansport, IN wrote:

My grandmother was growing this at her home 50 years ago. It bloomed even on the north side of her house, but will do better with more sun. Our church gardens include one as well. All these Japanese Spireas make a much better show if cut back hard every year or so.

Positive

On Sep 10, 2009, Julie55 from Lonaconing, MD wrote:

I read above where this plant is considered sterile or doen't come true to seed. I guess I am confused, as I have grown this several times from seed. The seeds come from my parents plant, that I raid at least once a summer. Does anyone have anymore info on this?

Positive

On Aug 12, 2008, passiflora_pink from Central, AL (Zone 8a) wrote:

Easy to grow even in poor soil. Spent blooms turn brown and ragged-looking but if pruned off will bloom again later in summer.

Positive

On Apr 12, 2005, jnn from Chapel Hill, NC (Zone 7b) wrote:

Low maintenance plant. The bees and butterflies love it. The blooms look like a little like Queen Anne's Lace, but the bush we have has pink blooms on it.

Positive

On Jun 14, 2004, patp from Summerville, SC (Zone 8a) wrote:

Dwarf, mounded, deciduous, pest-free shrub makes an excellent low hedge, edging or border. Foliage is bright green. White, pink and red bloom clusters cover the stems late spring to fall. Tolerates high summer and low winter temperatures.