japanese spiraea

Is Japanese spirea invasive?

Also known as Japanese Meadowsweet, this ornamental shrub was first introduced from Asia around 1870 to 1880 due to its showy flowers. It is now classified as invasive in the Mid-Atlantic states, including Virginia, and is on the list for Arlington County. ...

How do you prune Japanese spirea?

Japanese spirea should be tip pruned in late winter or early spring prior to bud swell and before the shrub leafs out. Also, at this time, remove any dead, damaged or diseased stems along with those that cross each other. To keep spirea looking great and to promote blooming, trim the plant at least twice per year.

How big does a spirea bush get?

Plant sizes vary by species and cultivar, and they range from 1½ to 8 feet tall. There are many species of spireas (greater than 80), but only the most commonly encountered species and cultivars are included here.

Does spirea do well in shade?

The spirea shrub does best when planted in full sun or light shade. Planting the shrub in full shade results in stunted growth, and a reduction in the number and size of blooms. Position your spirea in an area with well-drained soil, as they do not like wet feet.

Can I cut my spirea to the ground?

The spirea species (Spiraea spp.) ... To control the spirea's size and keep it blooming year after year, you should prune it back after blooming or when it's dormant in winter. If it's severely overgrown, cut it to the ground to rejuvenate the shrub.

What can I plant next to spirea?

Many shrub roses and perennials work well as companion plants with Spireas. Groundcovers and groundcover Junipers also work well as companion plants for this group.

How do you shape a spirea?

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. You can also shape the shrub at this time.

Is spirea an evergreen?

Spirea (Spirea spp.), a group of plants belonging to the rose family, are a group of deciduous shrubs that originated in Central and Eastern Asia. ... Because they lose their leaves every year, spirea are not considered an evergreen plant.

Why is my spirea dying?

Poor Water Management

Too much or too little water can stress plants. Although spirea tolerates dry sites, it grows best in consistently moist soil that drains well. ... Too much water can cause leaves to turn yellow or entire stems to die, which may give you a false signal your plant needs more water.

What is the largest spirea?

Bridal wreath spirea (Spiraea prunifolia):

One of the largest of the spirea species, bridal wreath reaches 4 to 8 feet high and 6 to 8 feet wide and has loose, arching branches that give it a fountain-like effect. In fall, the finely serrated green leaves turn shades of yellow, red, and orange.

What is the fastest growing bush for privacy?

English laurel (or Cherry Laurel) can make an enormous fast-growing hedge. Under the right conditions, it can grow up to 3 feet per year! It does very well in heat. It has glossy evergreen foliage and makes a very attractive large hedge with regular pruning 1-2 times per year.

What is the smallest spirea?

Spirea 'Elf'

The smallest of the spireas, 'Elf' has the same unfussy personality in a small package. Use for edging a path, garden borders or a great rock garden plant. Bright yellow foliage makes a great companion to perennials or annuals. The blooms are light pink and will rebloom sporadically during the summer.

What grows in heavy shade?

10 Great Plants for Shade

Heuchera (Coral Bells)
Lamium Maculatum (Dead Nettle)
Tiarella cordifolia (Foamflower)
Pulmonaria (Lungwort)
Astilbe.
Digitalis (Foxglove)
Hakonechloa (Japanese forest grass)
Primula (Primrose)

What grows in a shady corner?

For damp shade, you can plant:

Astilbe (False Goat's Beard)
Astrantia major (Hattie's Pincushion)
Carex flagellifera (Sedge)
Geranium sylvaticum (Wood Cranesbill)
Hosta (Plantain Lily)
Ligustrum ovalifolium 'Aureum' (Golden Privet), which can handle even deep shade.
Primula (Primrose)
Pulmonaria (Lungwort)

How far can you cut back spirea?

Trim back overgrown spireas or those that produced sparse foliage on the lower stems severely in fall after the foliage begins to fall off, to keep the shrubs shaped and compact. Cut back each stem to within 8 to 12 inches of the ground.

Does spirea bloom on old wood?

If your spirea bloom in the spring, They are likely Spiraea prunifolia or Spiraea x vanhouttei and they bloom on "old wood" or the previous year's growth. These should be cut back after blooming in 2016.

Do you deadhead spirea?

Deadheading: This is merely the practice of clipping off old flowers to stimulate the growth of new foliage and blossoms. ... Pink flowering spirea should also be deadheaded. You can cut off old flowers using a pruners, hedge shears or an electric shearing tool.

How do I kill spirea bushes?

Spirea has a healthy and reasonably deep root system, so leave about two feet of the strongest stems above ground. Dig around to find the roots and cut them back. Dig down around the stems to get as much of the root out as possible. You might be able to loosen the roots by heaving the stems backward and forward.

Will deer eat spirea?

SPIREA. It's a bit of a mystery why deer avoid spirea, but their aversion is good news for gardeners who love its abundant clusters of flowers in late spring and summer. A wide array of sizes are available, ranging from 2 to more than 6 feet tall.

How long do Spirea blooms last?

They can range in height as low as 18 inches or as tall as 48 inches. For a shrub, they are considered long blooming, and their flowers easily tolerate the heat so their bloom time isn't rushed as a result of a heatwave. You can plan on them blooming a good five weeks or so.

Is spirea annual or perennial?

Spireas are small to medium sized deciduous shrubs that produce cascades of flowers in spring and summer. Among the easiest flowering shrubs to grow, spireas are often used in foundation plantings, as hedges, and in perennial gardens. Most spireas bloom in late spring to midsummer.