Tree hydrangea: varieties, features of care (60 photos)
Treelike hydrangea is a large tall shrubs with lush white inflorescences. From other species of the family, they differ in the specifics of cultivation and care. Rounded bushes are good in summer cottages, in landscape compositions and green hedges. We tell what they are and what are their features!
Tree hydrangea is one of the types of garden hydrangea that came to us from the East and Sakhalin. Some varieties came from North America and in natural conditions grow up to 3-4 m. In the garden, they usually grow only up to 1-2 m and are used as an ornamental shrub.
A lush voluminous bush is formed by thin pubescent shoots with oval or ovoid leaves. The plates are large, up to 20 cm, and a bright green color, against which the snow-white caps of inflorescences look even more spectacular. Long thin stalks diverge from the stem opposite each other - this is called opposite growth.
Unlike panicled hydrangea, in a tree-like - corymbose inflorescences up to 15 cm in size. They are formed by relatively small white flowers up to 1.5-2 cm in diameter. Flowering is very lush and plentiful, and lasts from mid-summer to the first October cold weather.
Varieties of hydrangea tree
In our latitudes in gardening, varieties with white flowers are most often found. Moreover, in the process of flowering, the hue changes from light green and greenish to snow-white. Tree hydrangeas are also called white artisanal hydrangeas, and the British nicknamed them snowy hills.
Hydrangea tree Annabelle
One of the most popular varieties is notable for very large ball-inflorescences. They are much larger than average and grow to 25 cm, which is why they sometimes fall under their weight. Shrubs grow to only 1.5 m, but grow to 3 m wide.
Hydrangea tree-like Pink Annabel
A hybrid variety based on Annabelle tree hydrangea is also called Invincible. This is the first variety of a delicate pink hue, and it was recognized as one of the best new varieties in the 2010s. If the bush is cut in time after flowering, in six weeks Pink Annabelle will bloom again.
Hydrangea Treelike Strong Annabel
Another hybrid based on Annabel is notable for its resistance to external conditions. Its shoots are more powerful, and large lush inflorescences do not lie under their weight. This hydrangea is not afraid of heavy rains and gusts of wind.
Hydrangea Treelike White House
Variety White House looks interesting due to its delicate cream shade. An unusual feature is the structure of inflorescences, because fertile flowers are hidden in the middle, and large sterile ones are marginal. The shrub grows to 1.4 m and goes well with other species.
Hydrangea Treelike Bounty
The bounty is one of the most photophilous varieties, so it feels good even without a midday shadow. He has very small snow-white flowers, collected in a large bouquet-inflorescence.
Hydrangea treelike Grandiflora
Treelike Grandiflora is notable for very long flowering. During this time, the flowers change their color several times from light green to snow-white, and then - warm cream. This is a large shrub that can grow up to 2.5-3 m, unlike its more compact counterparts.
Hortensia treelike Pink Pincusen
One of the most unusual varieties differs in the form of inflorescences. Here it is not spherical, but pyramidal, so this hydrangea will amazingly diversify the garden composition. Pink Pincushion looks wonderful even when it fades.
Hydrangea tree-like Hayes Starburst
This is the first grade of tree hydrangea with large double flowers collected in large rounded inflorescences. Due to the texture of the petals, they seem even larger, although they already grow to 25 cm with a low height of shrubs - about 1 m. Because of this, the shoots may not withstand the weight of the inflorescences.
Tree Hydrangea Care
Gardeners appreciate tree hydrangea for their good winter hardiness, rapid growth, ease of rooting and plentiful flowering. Modern varieties are unpretentious to soil, temperature and weather extremes.
Hydrangeas do not need any special temperature conditions outside in the garden. This is a winter-hardy plant, but in the middle latitudes and north for the winter it is better to cover the shoots with spruce branches or with a special cloth. Even if the bush freezes, it will quickly recover in spring and will bloom on schedule.
Despite the abundant flowering, tree-like hydrangea does not like the oversupply of the bright sun. To avoid burns, try to choose a place so that at noon it is in partial shade. Then the bushes grow larger and bloom more abundantly.
Tree hydrangea loves moisture, so it tolerates overflows better than drought. Provide shrubs with regular watering of 15-20 liters 1-2 times a week. During rains, you can reduce the frequency so that the root system does not begin to rot.
Hydrangeas like loamy soils of medium and high acidity, but poorly tolerate alkaline soil. Before planting, use peat, compost, turf and leaf humus. Do not forget about mulching the soil immediately after germination of shoots with a layer of 5-8 cm thick.
Fertilizers and fertilizing
The lushly flowering tree-like hydrangea loves fertilizers, therefore, according to the schedule, it is fed four times. In early spring, with complex nitrogen fertilizers for gaining green mass, and then with potassium and phosphates, during the formation of buds. The remaining dressings are evenly distributed throughout the summer.
Transplantation and reproduction
Powerful adult shrubs can be propagated by division during transplantation. Another convenient way is layering, which you need to dig on 1.5-2 cm and give them support. The following year, these layers can be separated and transplanted from the mother plant.
Hydrangea cuttings always take root, but they need to be prepared in advance - in early June or in the middle of summer before the shoot is lignified. Cut the stem with 2-3 pairs of leaves and treat the cut with a preparation for root growth. The rooting process in a shady place under a bottle or in a greenhouse takes up to a month.
Hydrangeas are transplanted in early spring until buds appear, but seedlings from containers can be planted throughout the season. Take care not to damage the earthen lump and root system. Immediately after the transplant, you need to trim and generously water the bush, and after 3-4 weeks - feed.
After planting, young plants need to be cut and all damaged and weak shoots removed so that they grow lush and strong. For the next couple of years, do not touch the bushes and only in the fourth year in the early spring begin to carry out shaping clippings before top dressing. You can rejuvenate old bushes by radical pruning of all branches up to 50 cm.
Pest and Disease Control
Most hydrangea diseases provoke improper care and conditions. This is chlorosis, leaf burns, rotting of the root system, yellowness, leaf fall. In these cases, it is enough to adjust the mode, set a schedule for watering and fertilizing, create a shadow.
Fungal diseases are treated with special drugs - fungicides and antiseptics. To do this, you first need to get rid of damaged areas and excessive humidity. Viral ring spotting is not treated, so diseased shrubs will have to be removed until the disease spreads further.
The most dangerous enemy of tree hydrangea is nematodes, which are difficult to deal with. Do not forget about planned preventive treatment to minimize the risk of damage. Of the other parasites and pests, hydrangeas are loved by slugs, aphids and spider mites, which can be eliminated mechanically and with insecticides.
Tree hydrangeas - photo
Although the tree-like hydrangea is not so diverse in comparison with panicled counterparts, but it is still very effective and beautiful! Not only experienced gardeners, but also amateur beginners can cope with it. If you still doubt, take a look at our photo selection!