Is spirea native to Washington state?
Is spirea native to Washington state?
Description As a fast growing Northwest native deciduous shrub, western or Douglas spiraea (also referred to as hardhack or steeplebush) grows 5′-6′ tall and nearly as wide.
Is spirea an invasive plant?
Japanese spirea is on the invasive list in many states. It grows rapidly, forming dense stands that create shade and impedes the growth of native plants, thus causing an ecological imbalance. Repeated mowing of the invasive plant will slow its spread but not eradicate it.
What zone does spirea grow?
zones 4-8
Spirea is easy to grow in nearly any garden. It’s hardy in USDA zones 4-8, with many selections expanding that to 3-9. It is tolerant of a wide range of conditions, including poor soil, heat, cold, humidity, drought and urban pollution.
Is Douglas spirea invasive?
Douglas’s Spirea, Spiraea douglasii. Provides good cover for birds and small mammals. It attracts hummingbirds, butterflies, bees, and other pollinators. Rose Spirea is widely tolerant of many growing conditions, but can become invasive as it spreads readily, but with under careful management can be easily controlled.
How do you plant Spiraea?
Grow spiraea in garden borders in fertile, well-drained soil. Improve poor soils by adding well-rotted organic matter before planting. Depending on plant size, site your spiraea towards the back, middle or front of the border. The smallest spiraeas give the best effect if planted in a group of three.
Can you move a spirea bush?
Spirea shrubs can grow as tall as 10 feet (3 m.) Moving a spirea shrub should be done as quickly as possible so the plant doesn’t dry out. It may help to wrap the root ball in burlap to keep it moist and to stop the soil from falling away. Plant it in a hole prepared just like for container transplanting.
Should you cut back spirea in the spring?
You should actually prune your spirea more than once a year, at least twice. Give it a good trim after it flowers in the spring by cutting back the tips of the stems to the top leaf bud. This removes the dead blossoms and also may trigger a second blooming and new leaf growth.
Is there a dwarf bridal wreath spirea?
3. Dwarf Bridal Wreath Spirea. The Dwarf variety of the classic Bridal Wreath Spirea has a height and width ranging from 3 to 5 feet (90 to 150 cm). Its mounding growth turns it into a truly spectacular choice for hedging, topped with abundant clusters of white flowers.
Where can I find douglas spiraea?
Distribution: Douglas Spiraea is native from southeast Alaska to northern California. Although it mostly occurs west of the Cascade Mountains, it is also found in eastern Washington, Idaho and western Montana. Douglas Spiraea has also been found growing in isolated counties of Colorado, Missouri, and Tennessee.
Where does Spiraea grow in the United States?
Douglas Spiraea has also been found growing in isolated counties of Colorado, Missouri, and Tennessee. Growth: Spiraea douglasii grows 3-6 ft (1-2 m).
What does Spiraea look like?
Description As a fast growing Northwest native deciduous shrub, western or Douglas spiraea (also referred to as hardhack or steeplebush) grows 5′-6′ tall and nearly as wide. Western spiraea is best known for its towering rose colored flowers, resembling cotton candy cones, which appear from June through September.
How big does Spiraea douglasii grow?
Growth: Spiraea douglasii grows 3-6 ft (1-2 m). It spreads by rhizomes, and is very aggressive, It often forms dense colonies and can quickly become the dominant species in a wetland habitat. Habitat: Douglas Spiraea grows in open areas of wet meadows, bogs, streambanks, and lake margins.
