Biennial plants - list / examples and tips for care


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Sowing and care
Biennial plants are sown either in the spring or at the latest in the autumn. Almost all biennial plants are hardy and can therefore be sown in the field without any problems. However, it is important if they are sown in the first year at the location where they should grow in the second year. A later transplanting can slow down the growth and in the second year lead to a stunted growth or the formation of flowers or fruits remains completely. The substrate must be individually adapted to the plant, however, it is necessary to fertilize regularly in the second year, since the plant needs much strength for the formation of flowers and fruits.
Biennial plants that must not be missing in any garden

  • hollyhocks: Hollyhocks belong to the mallow family and are two - with good care even perennial. The hollyhocks were once an integral part of every cottage garden and are experiencing a renaissance again today. The hollyhocks can reach a height of up to three meters and are a visual eye-catcher in the garden. Ideally, however, the hollyhocks are planted along walls, since then the wind can hardly harm them. If the hollyhock is planted in the perennial border, it should in any case get a support for protection against strong winds. Hollyhock, like other mallow species, prefers a loose and well-drained soil. The soil should be well fertilized with humus already in the first year and a regular dose of humus or fertilizer should be made in the second year. It is important in the hollyhock that it prefers a moist soil and therefore should be watered regularly, without, however, forms waterlogging.
  • pansyPansies are popular grave plants, which are already purchased as mature plants in the autumn in the nurseries. The pansies, which belong to the violet family, are also in the garden a visual eye-catcher and can form a colorful sea of ​​flowers in the front yard, for example. The pansies are available in a wide variety of colors and sizes and can also be sown by yourself. Pansies are cold germs, which means they need a cold impulse to start germinating. Therefore, the pansies should be sown in a fertile but permeable soil at the latest in the fall. In slightly acidic soils, they can also develop well, but should never form waterlogging, as these are very poorly tolerated by the plants and they can die off. In the second year, the pansies should be fertilized early, making them almost always in the fall again and again beautiful flowers.
  • forget Me Not: Forget-me-not is a classic garden plant that is especially popular in shady or partially shaded gardens. Once in the garden, the forget-me-not is hard to get rid of and spreads with preference in shady perennial beds, where there is enough moisture. Although the forget-me-not is a spring bloomer, a decorative green upholstery is preserved until the fall. Who would like to promote a self-sowing, should simply leave the withered inflorescences on the plant. If the forget-me-nots are too dense next year, they can still be separated in early spring, without having to fear a loss of flowering. Tip: The forget-me-not is a very decorative cut flower and by the regular removal of blooming inflorescences, the flowering time can be extended slightly.
Wild beauties in the garden
Meanwhile, a series of wild biennial plants have found their way into the gardens. With their flowers, they can easily compete with many grown plants and have the advantage that they are often even more robust than cultivated garden plants. In addition, they stand for a natural garden and offer many beneficials accommodation and are also an important food source for them.
  • Evening primrose: The evening primrose is probably the bird of paradise among the wild biennial plants, because it can form flowers with a diameter of up to six centimeters. However, if you want to admire the flowers, you have to wait until the evening, because only in the beginning twilight, it opens its flowers and is a popular food source among the revelers. The evening primrose has very little claim to their location, only waterlogged conditions they do not tolerate very well. If she is occasionally even fertilized, she thanks it with an even more beautiful and flower splendor that lasts until autumn.
  • Nachtviole: A particularly delicate beauty in the garden is the night vole, which is not to be confused with the silver taler, which is similar in bloom, but also differs significantly in the shape of the fruit from the night vole. The night viole requires particularly nutrient-rich soils, which is why it is often found on forest edges or on stream banks. In the garden, the night vole should also have a shady and very nutrient-rich soil so that it can develop well. In the past, it was often found in shady cottage gardens, but increasingly displaced by crops and found its place in the wild again. The special feature of the night vole is that it exudes its sweet smell only in the evening or at night, so it may be convenient to plant them near the terrace to benefit from the scent on balmy summer nights outdoors.
frequently asked Questions
  • How do you have to winter two-year-old plants? - Biennial plants need no additional winter protection - a loose cover with brushwood is more than sufficient.
  • - this is possible in a general way, but one must expect that switching to outdoor and transplanting will hinder their growth and that development may take longer to flower.
Facts worth knowing about two year old plants
  • Two-year-old plants for the garden are understood to be plants that have a life cycle of two years.
  • The life cycle is the time between germination and seed formation.
  • Most of the plants available for the garden are the so-called biennial spring flowers, including pennywort and pansy.
  • It should be noted that this is not the flowering plants, but only the sowing.
  • A planted barnacle or a flowering pansy will not survive the winter.
  • The seeds, however, are able to survive a winter of frost in the soil and flower next spring.
  • Unlike other plants for the garden, it is not the case that you can let the plants hibernate in warmer places.
  • The life cycle is designed to die off after flowering and not to be used for a third year.
Biennial flowering plants
  • Many flowering plants in the garden are biennial. These include the pansies and carnations as well as gentian and evening primrose.
  • Particularly interesting is a sowing of two-year-old plants between annuals.
  • The two-year-old plants for the garden will bloom in the second year, when the annuals have withered.
  • In this way, you can make a colorful change in the garden.
  • Most biennial plants for the garden are sown in June that they have enough germination time to flower the following year.
Care of two-year-olds
  • For most biennial plants, regular fertilization is not necessary.
  • Flowering plants should be supplied with sufficient water, dry flowers should be removed.
  • The removal of weeds is one of the essential tasks, because biennial plants are usually kept in borders and not in pails.
  • The situation is different with crops such as turnip or cabbage: Here, pest infestation is mainly to be expected from snails, moles and mice.
By the way: cabbage and turnips are an exception. Hardly harvested, their life cycle has expired, so that these two-year-old plants often exist as annual plants and must be reseeded next year. These plants also include the very popular leek in the garden. Originally a biennial plant, it is cultivated in most gardens as an annual plant.

Video Board: Understanding Annual, Biannual, and Perennial.

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