Many gardeners and summer residents of Siberia dream to grow hydrangea in their garden, but because of the harsh climatic conditions they do not dare to do it. Thanks to the work of breeders, new frost-resistant flower varieties have appeared that are suitable for planting in the northern regions of the country. Growing hydrangeas in Siberia requires some knowledge and regular maintenance, but the result is worth the effort.
Choosing the right variety
For cultivation in the harsh climate of Siberia, using varieties of tree and panicle hydrangea, which tolerate frost well. For the plant to take root, it is better to buy seeds and seedlings from experienced, local gardeners.
Tree hydrangea can grow up to 3 meters in height. The most frost-resistant and spectacular of its species: Anabel, Grandiflora and Invinsibelle. Shrub blooms from July to late autumn.
Paniculised hydrangea is usually used to design parks and gardens. Some shrubs reach up to 10 meters in height and give large inflorescences. The following varieties of paniculate hydrangea have proven themselves well in Siberia: Limelight, Medical Flute, Pink Diamond, Magic Fire. For a small area suitable dwarf varieties up to 1 meter. These include Vanilla Fresh, Sanday Fresh and Bobo.
The photo shows paniculate hydrangea.
In Siberia, you can grow other types of hydrangeas, but this is a time consuming process. Every autumn, the plant will have to dig and move to a cool room. And with the arrival of spring, plant again on the site.
Growing hydrangea in Siberia is easy. But in order for the bush to get accustomed and grow well, planting should be carried out taking into account the particular climate of the area. Properly chosen place and optimal soil composition guarantees abundant flowering.
Hortensia feels comfortable in the illuminated areas, but direct sunlight burns the bush. Therefore, the flower is planted in shading place. Since there are very cold winds in Siberia, you need to find a quiet place for hydrangeas. The best option is to place the plant near the fence or against the wall of any building. For a hedge, shrubs of lilacs, bladders, or spireas are well suited.
Hortensia loves fertile and subacidic soil. In alkaline soil, the plant develops slowly, and its inflorescences and leaves are pale. It is undesirable to plant hydrangea in red soil and sandy soil.Attention! If pines and spruces grow alongside, you can dig up loose, light and slightly acidic soil under them. In such a soil hydrangeas can grow without fertilizer.
Landing pit preparation
In Siberia, saplings of hydrangea are planted in late spring, in the second half of May. By this time, the soil will have time to warm up and soak in melt water. A couple of weeks before planting the seedling, prepare a pit:
- At the selected site, a notch with a size of at least 50x50 and a depth of 40-60 cm is dug. For an adult plant, a looser hole is required - 80x80.
- The top layer of soil, 18-20 cm thick is laid separately.
- 20-30 liters of water are poured into the recess. Leave for a day so that the soil is well soaked with moisture.
- Deferred soil is mixed with peat, sand and humus in a ratio of 2: 2: 1: 1. Urea, superphosphate and potassium sulphide can be added to the mixture.
- Soil mixture is stirred and poured into the planting pit. A small mound should form.
The seedlings before planting pruned roots and shoots. It needs to leave only a few buds. The plant is gently lowered into the prepared pit, and straightened its roots. Sleep with soil and slightly tamped. The root neck of the hydrangea should be at ground level. Depth of 2 cm is allowed.
After planting, the flower is watered abundantly so that the water seeps to a depth of 30-40 cm. If there are several bushes, the interval between them should be at least 250 cm. To preserve moisture, hydrangea is mulched. To do this, lay out wood shavings, pine needles, peat chips or leaves with a layer of about 10 cm around the bush.
Hydrangea planted in Siberia does not require special care. But in order for the flower to be strong and healthy, you need to adhere to the basic rules and recommendations.
Hortense loves moisture. Drought can disrupt flower growth and development. The plant is watered every 14-16 days with 1-2 buckets of water. In dry and hot weather, the bush is irrigated every week. In rainy summer, 4-5 irrigations per season are sufficient. The procedure is carried out in the morning or in the evening, when the sun is not so active. To help the plant survive the winter in Siberia, water-charging irrigation is carried out in the fall.
Hydrangea prefers soft and warm water. Experienced gardeners add 2-3 g of potassium permanganate to the watering can, which prevents the appearance of rot.
Hydrangea growing in Siberia needs regular pruning. In the spring, the procedure is performed before the kidneys awaken. The best time is the second half of April. The shoots of tree hydrangea prune up to 3 buds from the ground. To give the desired shape to the shrub, remove weak and growing inward branches. Panicle hydrangea is cut differently - last year's stalks are shortened by one third. In the fall, the bloomed inflorescences are cut off.
To rejuvenate the old bush you need to cut all the shoots at a height of 5-6 cm from the ground. Next spring, young branches will appear, and the flower's decorative effect will be restored.Important! Young hydrangea is not pruned, shrubs should be older than 3-4 years.
To hydrangea in Siberia plentifully and luxuriantly blossomed, it must be fed. For the whole season the plant is fertilized 3-4 times:
- Early spring, early to mid May. For each square meter of land, 20-25 g of urea, 25-30 g of superphosphate and 20 g of potassium sulfate are added. After two weeks, fertilizing is repeated.
- During the formation of buds. 60-80 g of superphosphate and 40-45 g of potassium sulfate are diluted in water and the plant is watered with the solution obtained.
- After flowering, 6-7 kg of compost or rotted manure are brought under each bush.
Wood ash is not recommended for top dressing. It must be remembered that excess fertilizer will do more harm than good.
Shelter and preparation for the winter
Even the most cold-resistant variety of hydrangea will not tolerate frost in Siberia without shelter. To prevent the plant from freezing, do the following:
- The shrub is spud with soil, and the tree trunk is mulched with dry leaves, peat, pine needles or rotted manure.
- The plant is wrapped with burlap or any other covering material. Bend the stems to the ground and fix the design of the stones, covered with sawdust, lapnik or dry foliage.
- If the bush is large, then it is neatly tied with a rope. A wire cover is formed around it, which should be 8-11 cm above the flower. The hut is filled with dry leaves, and a film or roofing felt is pulled over it.
When snow falls, around the hydrangea you can collect a snowdrift, which will serve as additional protection. It not only warms the shrub, but also nourishes it with moisture with the arrival of spring.
Hortensia in Siberia is propagated by several methods:
Growing hydrangeas from seeds is a long and laborious way that is used very rarely. In Siberia, to grow a flower in the open field is almost impossible. Therefore, for several years, seedlings are grown in boxes, and only then grown plants are planted on the site.
Gardeners of Siberia prefer to multiply the hydrangea cuttings. To do this, cut off the leafy part of the stem with 2-3 buds from young plants. It is best to cut the cuttings from the side shoots that grew on last year's increments. Cut the part of the plant put in a solution of growth stimulant for 2 hours. Cuttings are rooted in open ground under film or in a greenhouse. So that the young flower does not die from the Siberian frost, it is dug out for the winter and transplanted into a box. Capacity cleaned in a closed cool room. With the arrival of spring shrub planted in open ground.
Layering hydrangea propagated in early spring. Around 2 cm deep grooves are dug around the bush. The lower shoots of the shrub are laid in them and covered with soil. In this case, the end of the shoot should remain on the surface. A year later, the layers are separated from the parent bush.
Diseases and pests
Hortensia growing in Siberia is prone to perinospora or downy mildew. Fatty spots appear on the leaves, and a yellow bloom forms on the stems. Shrubs should be sprayed with the following solution: 140 g of green soap and 15 g of copper sulfate diluted in a large bucket of water.
The flower may be affected by chlorosis. The leaves turn yellow and lighten, there is a deformation of the buds and shallow foliage. The reason - the plant does not have enough iron. For the treatment of Hortensia, a solution is prepared from 2 g of ferrous sulfate, 4 g of citric acid and 1 liter of water or from 40 g of potassium nitrate and 10 liters of water.
Of the pests shrub attacks spider mite. The leaves begin to dry out and fall off. To save the flower, it is treated with a solution of thiophos (7 g of the substance is diluted in a bucket of water). On the leaves of hydrangea can live aphid, which sucks the juice from the plant. To reduce the number of insects, the area is cleared of weeds and treated with insecticide bush.
Hortensia is an unpretentious flower that can be grown even in the harsh climatic conditions of Siberia. But for the plant to enjoy lush and long flowering, you need to make an effort. The bush needs careful care and shelter for the winter. Then the hydrangea will feel comfortable even in Siberian, severe frosts.