Rudbeckia is a herbaceous plant that is planted mainly in open ground. It can be either annual or multiyear. The plant has beautiful bright flowers, so it is used for decorating flower beds and in landscape design. There are many varieties of rudbeckia, so it is easy to choose the best option for any garden.
Rudbeckia perennial: varieties
The most common types of perennial flower of rudbeckia are:
- Dissected Rudbeckia - the name of the variety "Golden Ball". It is this species most often planted in flower beds in Russia. The plant has beautiful full double flowers, the diameter of which can reach 10-12 cm. The maximum height of this type of rudbeckia is 2 m. Such tall plants require binding to a support. It is well tolerated by low temperatures, in the winter time can do without shelter.
- Radiant rudbeckia with bright orange flowers is also called brilliant, because its leaves look glossy in appearance. This plant is much lower than the previous one, the average height is 60-70 cm. Such flowers may not be tied up, especially if they grow in groups.
- Rudbeckia beautiful is a plant that has large flowers with a characteristic convex heart of brown. Petals of such colors are arranged in 1 row, they are long and thin. Shades of petals are orange and burgundy. After they fall, the volume centers remain on the stem and retain their bright color.
- Glossy rudbeckia is so called because it has shiny leaflets that beautifully and harmoniously emphasize the brightness of the flowers. In height, this variety of flowers can reach 130 cm, it needs to be tied to a support. It is best to plant such a rudbeckia in groups of several plants, then a beautiful carpet of bright colors is created. Also, glossy orebeckia has a significant difference from other varieties of this ornamental plant - its core is not dark, but light yellow, almost in tone with the petals.
How to grow ore beck on the site?
The mode of reproduction of plants in annual and perennial orebeckia is somewhat different. The fact is that annuals are propagated mainly by seeds, while perennials can be planted by dividing rhizomes. Annual flowers begin to be sown in April or May not in open ground, but in special containers. Seeds do not need to bury too deep into the ground, it is harmful to the plant and will create an obstacle to germination. They are placed on the surface of the soil and slightly sprinkled with it on top. Shoots should be expected after 7-10 days from the time of sowing.
Small plants need to dive, that is, cut the roots of them in order for the plants to become strong and resilient. This procedure is done when the first leaf appears in the rudbeckia. Planting seedlings in the ground is necessary when there is no longer a threat of frost.
Perennial varieties can also be propagated by seed, but in order for the plant to produce flowers in the same year, it is better to plant with rhizomes. Seeds are sown in June or July in a dedicated area of soil, and in early autumn they are transplanted to a permanent place. They will bloom only next year. Rhizomes are divided in spring or autumn. They should be planted in the ground enriched with humus and sand. Before planting, the ground must be kept wet for 2 weeks. In order that the moisture does not evaporate quickly, it is recommended to perform mulching, that is, cover the soil with leaves, dry grass or sawdust.
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Rudbeckia annual: planting and care
Annual varieties can be grown in special containers, they are often used for cutting and the formation of flower compositions. Flowers can stand for a long time in the water and retain their beauty and freshness. To extend their life in water, you can dissolve an aspirin tablet in it.
Such orebeckia is propagated only by seeds, as mentioned above. To collect them from the plant you need to wait until the hearts of the flowers are completely dry, and then cut them and remove the seeds. You can keep them for about 3 years, throughout this period they will maintain good germination. Often, when using seeds collected from their plants last year, I grow flowers with a different color. This is due to pollination between the ore beings of different colors. If the seeds are sown in early spring, in July you can expect the appearance of the first flowers. Most often planted such varieties of annual rudbeckia:
Rough or hairy is characterized by very long and abundant flowering. Low-growing species are used to decorate borders and disembark in decorative street pots for flower beds. Well, these plants are stored in water and can be used to create floral compositions and bouquets.
The grasping rudbeckia has this name due to the very unusual arrangement of the petals. They go down, resulting in the impression that the stem is grabbed by them.
Rudbeckia quite unpretentious plant. The most important thing is to water the flowers in time, mulch the soil to retain moisture and fertilize. When it’s hot in the street, Rudbeckia needs frequent watering, it is best to water the flowers in the morning and evening. The soil should be covered with dry leaves or sawdust, it will help to retain moisture longer, especially mulching on hot days. If moisture is not enough, the flowers of the rudbeckia will wither and wither. For top dressing it is best to apply complex fertilizers that should be applied to the soil at least 3-5 times per season. The optimal interval between supplements is 3 weeks.
Rudbeckia has a close-lying root system, so before the onset of winter it is recommended to sprinkle a small layer of fertile soil at the planting sites. Stems at the end of autumn must be cut, leaving only 10-15 cm. After the rains, the plant will require care. Water should be shaken from the flowers and leaves. Otherwise, tall stems will not be able to resist under the weight of water and bend or break. Before the flowering period, it is necessary to feed the plants, both through the soil, and by spraying nutrient mixtures near the flowers and buds.
These plants must be pruned. Inflorescences that have faded or withered need to be cut off, this will stimulate the emergence of new young buds and prolong the flowering period. With proper care and regular pruning, rudbeckia will bloom before the first autumn frosts. Heads and seed boxes will be stored for a long time, they can be left on a bed until the first snow.
If you want to get additional new plants and plant large bushes of rudbeckia, in the fall you will need to dig and divide the rhizomes. A large bush can be divided into 3-4 parts, and plant new plants in a moist soil.
Pests seldom hit rudbeckia. However, leaf nematode attacks can occur which sharpen the leaves of the plant. If the rudbeckia was infected with nematodes, all its fallen leaves must be burned. It is strictly forbidden to add them to the compost, otherwise the pest will appear on other plants. If the nematode loses too many leaves due to nematodes, it will have to be sprayed with special insecticidal preparations.
CRudbeckia twigs: a photo
Unusual flowers of rudbeckia will make your flowerbed bright and beautiful. The main advantage of the plant is that it is unpretentious and does not require special care. Rudbeckia perfectly tolerates frost and heat, but it is difficult for her to do without enough moisture.