Мой сайт

ИРГА (Amelanchier × grandiflora) 'Autumn Brilliance'

Внешне все распространенные виды ирги (их известно 18-20 видов) похожи друг на друга. Действительно, у них белые соцветия-кисти, цветущие практически в одно время, а плоды схожи тем, что созревают постепенно, поэтому ближе к основанию кисти висят темно-синие ягоды, а на вершине – более яркие, малиновые. Однако различия между видами связаны со строением растений, их устойчивостью в средней полосе России и происхождением. Из-за незнания этих особенностей нередко возникают казусы и путаница в ботанической литературе.

Ирга канадская - Крупный многоствольный кустарник с поникающими красноватыми побегами, кистевидными соцветиями из белых цветков и сладкими темно-пурпурными плодами. Самый декоративный вид ирги, особенно нарядный в период цветения и в осеннем багряном убранстве.

Amelanchier x grandiflora ‘Autumn Brilliance’:
Amelanchier x grandiflora is a cross between A. arborea and A. laevis. This cultivar is noted as having good form, reliable flowering and brilliant red fall color. This cultivar matures at 20 to 25 feet and is faster growing than the species, especially under intensive cultivation. It is reportedly more resistant to leaf spot and fire blight than the species.

Culture

Easily grown in average, medium, well-drained soil in full sun to part shade. Tolerant of a somewhat wide range of soils. Root suckers are common, and if not removed, will result in a shrubby growth habit for the plant.
Noteworthy Characteristics

This hybrid apple serviceberry cultivar is a deciduous, early-flowering large shrub or small tree which typically grows 15-25' tall. Features 5-petaled, showy, slightly fragrant, white flowers in drooping clusters (racemes) which appear before the leaves emerge in early spring. Finely toothed, obovate, bluish green leaves (2-5" long) change to brilliant orange-red in autumn (hence the cultivar name). Flowers give way to small, round green berries which turn red and finally mature to a dark purplish black in early summer. Edible berries are sweet, resembling blueberries in size and color, and are often used in jams, jellies and pies. Amelanchiers are also often commonly called Juneberries. Amelanchier x grandiflora is a cross between A. arborea and A. laevis.
Problems

No serious insect or disease problems. This cultivar reportedly has excellent disease resistance.
Garden Uses

Best in shrub borders or as a small ornamental tree. Also effective in woodland or naturalized areas, particularly with dark or shaded backdrops which tend to highlight the form, flowers and fall color of the plant. Also effective along stream banks and ponds.

Product Description

Bursting with white flowers in the spring time, this small tree will fit into any sized landscape. It is grown either in a single stem tree or a multiple stemmed large shrub which is suitable for accent planting or privacy screening. The oval shaped leaves emerge coppery-red, becoming rich green throughout the growing season. Produces sweet purplish-black fruit which is promptly taken by the birds.The fall color is dramatic and outstanding! The bark is smooth and light gray. Hardy to --40°F Maximum Elevation: 8,500 Feet

Another excellent small tree selection is the ‘Autumn Brilliance’ Serviceberry. It is very useful and beautiful as both a single leader tree, as well as a large multi-stem shrub. The name Autumn Brilliance correctly describes the outstanding red fall leaf color, but equally spectacular is the burst of white spring flowers, followed by a small very dark colored edible berry. The bark is smooth and light gray. Serviceberry might reach 20' to 25' both tall and wide at maturity.

In both youth and maturity they can become twiggy, with many crossing and rubbing limbs. However, they respond well to corrective pruning and can develop into outstanding specimens of form and character. From our experience, they transplant rather easily, but do prefer a sandy loam, well-drained soil for optimum growth. If fact we have seen them sprout in the spring, wilt back from desiccation, then rebound strong with adequate watering.

They are a bit susceptible in certain areas to some of the fungal diseases, such as Rust, Leaf Blight, Fire Blight, and Powdery Mildew, so they perform best in production with some fungicidal treatment. However, out in the open as a street tree, or in the yard or garden where there is good air circulation, I have seen few problems. The one in this photo was planted in a small parking island in downtown Sumner, Washington about 5 years ago, and has performed like an arboretum specimen.

There are several other cultivars of the Amelanchier such as ‘Cole’s Select’, ‘Cumulus’, ‘Robin Hill’, and even a ‘White’ or ‘Rainbow Pillar’ with a tight multi-stem columnar form. The Autumn Brilliance is the most popular. I always appreciate any comments you have on this or other varieties you work with.