Tuberous begonias bloom profusely and bright, their sumptuous flowers resemble roses, carnations, camellias, peonies, daffodils ... The big advantage of tuberous begonias is their ability to give a festive decoration Shadowed corners of the garden, bringing back their bright colors. Numerous elegant flowers of tuberous begonias decorate various gardens from June to September, and apartments and protected from frost balconies even longer - from late spring to late autumn.
Tuber or a hybrid begonia (Begonia x tuberhybrida, B. tuberosa) has a huge number of varieties, differing in size and shape of the flowers, the configuration of the petals with serrated or smooth edges, corolla color (white, cream, yellow, orange, salmon, pink, red - different shades, as well as two-color), size, and density of shrubs, type of growth. Tuberous begonias is among the large-(up to 30 cm in diameter), and small-flowered, simple and double.
As a result of cross-breeding different species and varieties of tuberous begonias melkotsvetkovyh obtained enchanting ampelnye begonias (Bx tuberhybrida pendula fl. Pleno) with thin drooping shoots and double flowers. Gracefully curved stems ampelnoe begonias with a continuous cascade disclosed flowers and going to replace them all summer and autumn new buds look great in wall planters, in hanging baskets, flower pots on trays and shelves.
Feature of tuberous begonias is that they have thickened tuberous rhizome, with different diameters (up to 6 cm). Tuberous begonias are herbaceous juicy translucent stems and leaves with regular kososerdtsevidnye the pointed tip; some varieties the leaves are covered with hairs. In the axils of the leaves tuberous begonias arranged flower stalks with a few flowers (flowers are begonias dioecious). Tuberous begonias are propagated by division of tubers in spring, autumn and spring cuttings, seeds (sowing under glass from early January to early March).
Tuberous begonias have a rest period from November to the end of February; at this time the tubers of different sizes stored in different ways. Young first-year begonias with small tubers grown from seed, keep the winter in a cool place with a light moderate watering (their winter shoots stop growing, but often remain green). If small tubers begonias stored as large, that significantly increases the likelihood of shrinkage in the winter.
Large tubers of begonias, which bloomed in the summer in pots, you can leave after the death of the shoots for the winter in the same pots (pots with tubers put in a cool place). Large tubers of begonias, which bloomed in the summer in the open field, in the fall after the death of shoots placed in storage in dry peat (sand) and clean for a period of rest in a cool place, and at the end of the winter to get it for germination.
In March, when large tubers of begonias kidneys begin to swell, they are planted on germination: pressed into the hollow side up, tubers are buried in the ground half the scheme 5x5 cm in boxes with moist substrate or peat (you can just put the potatoes in one substrate into individual pots 12 cm in diameter). Tuberous begonias for the substrate is composed of a mixture of leaf, humus, peat soil and sand in the ratio (2: 1: 1: 1).
Boxes and pots of sprouted tubers of begonias put on a bright place and very moderately watered, kept at a temperature of 16-18 degrees and high humidity. Begonias tubers germinate within a few weeks of slow and uneven: first, they take root and only then shoots that need pritenyat from the sun and provide them with access to fresh air without drafts (tuberous begonias do not like stuffy). At this time, tuberous begonias can be propagated by division of tubers or cuttings.
When emerging from the buds sprout tuberous begonias grow up, get stronger and they will have leaves, tubers of the boxes are seated one in individual pots with a substrate. The tops of the tubers of begonias with the grown sprouts sprinkled to the ground shoots substrate with the addition of humus and ash.
In the open ground non-frost resistant begonias can be planted until after the spring frosts and after preliminary gradual hardening of plants (in the process of hardening begonias may lose some leaves).
Tuberous begonias do not tolerate open wind and direct hot sun beds. They were planted in the rich organic, well-drained soil loose (the presence of lime in the soil of undesirable) to bright place or penumbra distance 15x15 cm, 20x20 cm or 30x30 cm, depending on the size of clusters that class. After disembarking tuberous begonias in open ground soil humus mulch and sprinkle ashes. For successful plant growth need to maintain soil moisture, but avoid water stagnation; better watered begonias morning.
High humidity also promotes lush growth and flowering tuberous begonias; spray them is not recommended, so as not to cause the appearance of brown spots on the leaves and petals of begonias. During the period of growth and flowering tuberous begonias are often tall tie to the support - despite the considerable thickness, fragile shoots of begonias can break under the weight of the set of huge double flowers (especially in windy conditions).
Begonias are very well respond to growth factors and feeding, especially in the early stages of development and in the formation of tubers; good effect makes use of sodium humate in alternation with dressings. Tuberous begonias in the period of active vegetation regularly fed complete mineral fertilizer and 2-3 times per season - diluted mullein. By the early autumn of tuberous begonias stop feeding and gradually reduce their watering.
Do ampelnoe begonias, if you want them to multiply in August can be separated from adult stepchildren plants and implant them into "mini-teplichke." In late August, shortly before the digging of begonias open ground, if necessary reproduction separated shoots from tubers of begonias adults (young plants grown from seeds, not by cuttings). In autumn when the threat of frost tuberous begonias are dug out of the garden with a lump of earth, grading on individual mailboxes begonias with large tubers and young begonia tubers with small (diameter up to 2 cm).
The plants are placed close to each other in boxes a height of about 15 cm, slightly sprinkled with the substrate and kept in a cool light (15 В° C) room with limited irrigation. In preparing for the rest of the adults begonias gradually begins to die aboveground part; as soon as they fall off the leaves, watering begonias stopped. After the death of the aerial part of its cut, and after 2 weeks the tubers was purified from the ground and crop residue is placed in dry sand or peat (insulating tubers from each other), and stored in the winter at a temperature of 6-8 degrees. During storage the tubers periodically check and remove rotten.
Young begonias with small tubers when digging of open ground are placed in separate boxes, as they have a relative period of peace: their aboveground part of the winter often remain green. Young begonias and remain to winter in boxes placed in a bright cool (10-15 degrees) with moderate watering place, and in the early spring resumes its growth. In the spring they are seated in individual pots with a substrate, and after the frost, if necessary, are transplanted into open ground.
When the summer, grown in pots tuberous begonias in autumn in preparation for the rest period will lose leaves, their watering stop. In October of potted tuberous begonias pruned dying shoots, leaving 1-2 cm above the ground, and clean the pots with tubers in the basement or in the coolest place flat to the end of February. In winter stored in the apartment potted begonias do not allow strong drying earthen coma - occasionally a little watered from the pallet to the winter is not the tubers were narrowed.
In early spring pots with tubers of begonias put on a bright place and begin to regularly watered soil. When the germs of tubers of begonias carefully cleaned of the old earth and transplanted into a fresh substrate; Transfer the "extra" shoots cuttings.