What are the different types of cotoneaster?
With around 300 species of cotoneaster, this is a versatile genus that can differ hugely between varieties and is suited to a range of garden situations. cotoneaster plants can be small trees, shrubs and ground cover, with some varieties suitable for training flat against a wall or used as hedging. You should trim your late cotoneaster twice a year- once at the beginning of june, and then again near the end of september. You must prune at the correct times (stated here), otherwise you may end up removing new shoots that are trying to grow. Once you have pruned, we also recommend feeding or mulching the plant.Cotoneaster is not one of those shrubs that requires pruning to develop vigorous, strong branches. In fact, the shorter varieties of cotoneaster are creepers, without upright branches. To trim cotoneasters that are groundcover types, you want to keep the brakes on. Don’t get carried away with cotoneaster pruning here.
What is the common name for cotoneaster?
Cotoneaster horizontalis, commonly called rockspray cotoneaster, is a coarse, dense, slow-growing, semi-prostrate shrub that grows to 2-3′ tall and spreads over time to 6-8′ wide on stiff, flattened, horizontal branching that features branchlets arranged in fishbone patterns. Cotoneaster divaricatus, commonly called spreading cotoneaster, is an upright, rounded, densely branched, deciduous shrub that matures to 5-6′ tall and spreads to 6-8′ wide. It is particularly noted for its attractive form, glossy green leaves, dark red autumn fruit and autumn foliage colors.Invasive cotoneaster was introduced to the UK from Eastern Asia in the 19th century as a garden plant. Since this time, it has smothered valuable landscapes including limestone grasslands and outcompeted many native species. Cotoneaster berries are easily dispersed by birds contributing to its widespread distribution.
Should I remove cotoneaster?
As cotoneaster spreads by seed, there is a need to ensure the entire plant is removed, but also any soil that might contain the seeds. It is important to note that some species of cotoneaster in the UK are listed as invasive in Schedule 9 plants on the Wildlife & Countryside Act. While Cotoneaster can grow on fairly barren areas like limestone slopes in coastal regions, their roots can establish deep into the ground which can be difficult to remove without excavation.Cotoneasters are fast-growing, with a mature height of 6 to 8 metres / 20 to 26 feet. Prefers a sheltered position.
Is cotoneaster fast growing?
Cotoneasters are fast-growing, with a mature height of 6 to 8 metres / 20 to 26 feet. Prefers a sheltered position. Cotoneaster is an excellent multi-season plant, offering spring flowers, fall berries, and year-round structure. Lifespan: 20+ years with proper care.The most common problem with cotoneasters is mites. These pests suck plant juices causing the leaves to look speckled and in severe cases brown and fall off.
Is cotoneaster poisonous to humans?
Cotoneaster is mildly toxic to humans. The fruit is poisonous and can cause gastroenteritis, but a large quantity would need to be eaten to have this effect. Cotoneaster berries are generally considered to be mildly toxic to dogs. While they may not be as toxic as some other plants, they can still cause gastrointestinal upset and discomfort if ingested. Symptoms of mild poisoning in dogs can include vomiting, diarrhea, and stomach cramps.
Which cotoneaster is invasive?
Some species of cotoneaster are potentially invasive. These include Cotoneaster bullatus, Cotoneaster horizontalis and Cotoneaster simonsii. Cotoneaster horizontalis is listed on Schedule 9 of the UK Wildlife & Countryside Act as an invasive species. This does not mean you cannot grow it in your garden but we encourage gardeners to think carefully about its potential impact on wildlife and to consider alternatives.