Tunbergia: growing from seeds, leaving in the open ground, types and varieties with photos
Liana tunbergia (Thunbergia) is a flowering plant and a representative of the acanthus family. Its homeland is the tropics of Africa, southern Asia and Madagascar. This genus unites approximately 200 species. This plant was named Thunbergia (scientific name) in honor of the Swede Karl Peter Tunberg, who was a naturalist and researcher of the plant and animal world of South Africa and Japan. Residents of European countries still call this plant black Suzanne due to the fact that in the center of the flower there is an almost black dark purple peephole. Cultivate it as a garden, as well as a houseplant.
Features of Tunbergia
Tunbergia is represented by both shrubs and vines. Whole ovoid or heart-shaped, as well as oppositely spaced lobed leaf plates have a non-rigid pubescence and reach 2.5–10 centimeters in length. There are species in which the edge of the leaves is jagged. The diameter of the spectacular flowers is 40 mm; they have a funnel shape and long pedicels. They can be single or be part of inflorescences. The flowers have a variety of colors, for example, they can be painted in blue, purple, purple, orange, white, blue, purple, yellow and brown. There are species even with red flowers. There are certain types and varieties of tunbergia, the flowers of which emit a very strong smell. Flowering begins in July and ends in the last days of September. Under natural conditions, tunbergia is a perennial, but in mid-latitudes due to too cold winters it is cultivated as an annual. Often such a flower is used for vertical gardening, since if it is supported, then the bush can grow up to 200 centimeters in height. The ampelous tunbergia, as a rule, is grown indoors or in greenhouses as a perennial plant.
Tunbergia flower - planting and care, cultivation of tunbergia from seeds
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Growing Tunbergia from Seeds
It is necessary to sow the seeds of tunbergia at the end of winter or at the beginning of spring. Immediately before sowing, the seeds must be treated with fumar or epin. Then, sowing is carried out in a container with moistened soil mixture, which includes peat, turf land, sand (or sand, sheet soil and humus), which must be taken in a ratio of 1: 1: 1. Sprinkle the seeds with a thin layer of substrate, and then the crops are carefully watered. Then the containers should be covered with a film or glass and put on the windowsill, which should be well lit, however, do not forget to protect the crops from direct sunlight. Remember that the substrate in the containers must be constantly slightly moistened. To seedlings appeared as soon as possible, they should be put in the place where the air temperature will be in the range from 22 to 24 degrees. If everything is done correctly, then the first seedlings can be seen already 7 days after sowing. Once this happens, take cover.
Winged Tunbergia - seed cultivation
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If the seedlings are excessively thick, then after the formation of 2 real leaf plates, they will need to be thinned out, while the weakest seedlings should be removed. You can also pick them up. In order for the bushes to be more branched and dense, they pinch the seedlings after their height is 12-15 centimeters. In the event that it is important for you that the bushes have a lush green mass, then after you pick, feed the plant 1 time in 7 days with fertilizers containing nitrogen. Those who care about long and plentiful flowering should take into account that seedlings do not need to be fed at all.In order to avoid picking, seeding is recommended to be done in peat cups, while 3 seeds should be planted immediately in 1.
Landing of Tunbergia in the open ground
What time to land
Planting seedlings in open soil is done after frost has passed. For planting, you should choose a site on the eastern, southern or western side of the garden, which should be slightly shaded and have protection from gusts of wind. Soil should be well-drained, neutral, saturated with nutrients and calcareous. In this regard, if necessary, then add lime before digging to the site in advance.
When making landing holes, it should be remembered that the distance between them should vary from 0.3 to 0.45 m. Do not forget to install the support before planting the seedlings, for this use a grate or wire. It should be borne in mind that this vine can grow both up and to the side. Planted plants need to be watered. Flowering, as a rule, begins 100 days after the pinching.
It’s easy and not laborious to take care of thunderbird. At first, it needs moderate watering, and when flowering begins, it is plentiful, with a lack of water, leaf plates and buds may fall. If in the summer there is a long dry period, then it will not be superfluous to spray the bushes with water, you need to do this in the evening. Be sure to feed the plants at the time of the appearance of the buds. During spring and summer they need to be fed 1 time in 4 weeks, using liquid mineral fertilizer for this, but remember that the main thing in this matter is not to overdo it. Regularly remove weak stems, as well as flowers that have begun to fade. Do not forget to timely send the stems in the direction you need.
Diseases and pests
Very often scabies, spider mites and whiteflies settle on bushes, and aphids can also harm the plant. In order to get rid of these pests, you should treat the plants with a phytoerm or an actellic. If necessary, this treatment can be repeated 3 or 4 times, while the duration of the break between these procedures should be from 7 to 10 days. In some cases, a disease of fungal diseases occurs. Infected foliage and flowers need to be cut and destroyed, and the bush treated with fungicides.
If you water the turgeria very abundantly, then mold forms on its leaves and shoots. If the foliage on the stems is very rare, then this means that the liana feels a lack of light.
Thunbergia after flowering
At the end of flowering, where flowers used to show off, box-fruits grow, inside of which there are seeds. You need to collect them before they open on their own, and their contents spill out onto the surface of the site. Cut boxes must be brought into the room, where they are sprinkled with seeds on a newspaper sheet. When they are dry, they are poured into paper bags and put away for storage. Germination of such seeds remains high for 2 years.
Vine grown in open soil with the onset of autumn time must be removed from the site. The fact is that it will die even if the winter is not very cold. However, sometimes thunderberg is grown in a volumetric pot or tub. In this case, in the autumn, all stems should be cut, with 4 or 5 buds remaining on each of them. It is necessary to carry out the processing of the cut points with a solution of potassium permanganate. Bring the bush into the room and put it in the place where the air temperature does not exceed 15 degrees. There the plant will stay until spring. Moisten the top layer of the substrate in the container a little.
Types and varieties of tunbergia with photos and names
Cultivated species of tunbergia are divided into vines and shrubs. Popular types of tunbergia creeper:
Thunbergia winged (Thunbergia alata)
This species is the black-eyed Suzanne, which is described in detail above.The flowering of such a vine begins in August, and ends in September. Cultivated since 1823. Popular varieties:
- Susberg Tunbergia is a variety series with flowers of various colors: Susi Orange mit Auge - saturated orange flowers, Susi Weib mit Auge - blooms with white flowers, Susi Gelb mit Auge - yellow flowers;
- African Sunset - flowering is observed throughout the summer period, the color of the flowers is terracotta;
- Gregor's tunbergia - this group includes 15 varieties, while the flowers are colored in different shades of orange, despite the fact that there is no dark eye in the middle of the flower, they still have a high decorative effect.
Large-flowered tunbergia (Thunbergia grandiflora), grandiflora tunbergia, blue tunbergia.
The birthplace of such a strong herbaceous plant is India. The stems are curly. Saturated green leaf plates have a wide oval shape, while their length can vary from 15 to 20 centimeters. Large teeth are located along the edges of them; the underside of the leaves is pubescent. The diameter of the flowers is about 8 centimeters, they can be painted in purple or blue. In their throat there is a speck of white. They are part of inflorescences, having the shape of a brush.
Thunbergia fragrant (Thunbergia fragrans)
The homeland of this evergreen creeper is Southeast Asia and Australia. The length of such a plant can reach up to 6 m. Opposed egg-shaped leaf plates have a pointed upper part. The front surface of them is dark green, and the inside is pale green with a white median vein underneath. Large solitary wide open flowers are painted white and reach a diameter of 50 mm. They have a pair of bracts and a very pleasant smell.
Thunbergia Battiscombe (Thunbergia battiscombei)
Such a plant has wide leaf plates. On the surface of the petals of blue flowers, a grid is clearly visible.
Also quite often grow such species, which are a liana, such as: related tunbergia, laurel leaves and Misorena.
Especially popular among gardeners are such shrubby species as: natal tunbergia, erect and Vogel.
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