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Autumn asters are the last color greeting of the plants in the year. They only start to bloom in late summer and then form a colorful sea of flowers until October, which already shines from afar. Autumn burls are ideal for perennial beds and make color highlights in autumn in arrangements with many grasses.
Aster species exist very many and the autumnal branches are only one of the subgroups. They are again divided into annual and perennial varieties. One-year varieties are usually offered in the late summer already in the trade and are significantly smaller than their multi-year relatives. However, one-year varieties are also available in bright colors, but die off after flowering in the fall. The color spectrum of perennial varieties ranges from delicate whitewash rich violet to a bright pink that shines from afar. Perennial autumnal branches differ not only in color, but also in the flower form. There are the asters with wide open or half-filled flowers - in the care, however, the individual species do not differ. Tip: Autumn burrows are not only a visual delight for humans, for insects such as bees, they are one of the last food sources in autumn.
The location should be sunny. Best are locations with morning or evening sun, the blazing midday sun tolerate autumn blacks only very bad. Too much sun promotes early flowering, which can erode the plant in the long term. If there is no other option, autumn burrows can also be planted in semi-shade, but then it must be expected that it remains lower and less flowers. At partially shaded locations, wild forms such as the blue aster or the white forest raster should be planted.
- Soil: Autumn berries feel most comfortable in a loose and nutrient-rich soil. If the soil is too dense, it can be loosened up a bit by incorporating sand, for example. As part of the soil preparation process, incorporate organic fertilizers in the form of compost or horn shavings into the soil and create an optimum foundation for planting.
- Pruning: Autumn burrows are very modest in terms of care. A pruning near the ground takes place in spring, because the perennial is usually not cut in the fall.
- Watering: Autumn asters need a constantly moist soil, so that they can form many flowers by autumn. Immediately before flowering, the autumnal branches should be watered more intensively, but no waterlogging should form. Especially in the dry summer months, care must be taken to ensure that the autumnal branches are regularly watered.
- Fertilizing: At least twice a year, the autumn alders should be supplied with additional fertilizer in liquid form. In the spring, fresh compost or other long-term organic fertilizer such as horn shavings can also be incorporated into the soil around the perennial.
- Sowing: Autumn blackberries can be sown directly in the field in early spring. At temperatures around 20° C, the seeds start to germinate - but the autumn shoots the first time, passes at least one year.
- Division: Easier is the multiplication by the division of the rhizomes. The best time for the division is the spring. The clumps with a spade taken from the ground and shared with a large knife. The site should again be prepared with organic slow-release fertilizer such as horn shavings.
One should not make the effort in the late autumn to remove the old inflorescences of the perennial, because they help the plant during the winter. They form a natural antifreeze, because immediately after a pruning of the plants a frost break, this can damage the plant in the long term and even lead to complete death. If the shrub is cut in the autumn, it should be covered with brushwood immediately, so that the frost can not be damaged.
Diseases and pests
Autumn butterflies are very robust plants that are barely affected by pests and diseases if they are well-located.
- Voles: Dangerous may be the autumn vultures voles, which like to nibble on the roots, unless they find anything worthwhile in the garden.
- Mildew: Overgrowth can occasionally lead to the formation of mildew.The plants should then be rejuvenated next year and planted in a more lavish location. In addition, infested plant parts should be cut off and disposed of.
- Aster Wilt: A typical problem of the autumn blackberries, however, is the so-called aster's wilt. In the initial stage, leaves hang limp, as if the plant had too little water. Increased watering does not help, because in the next stage the lower leaves begin to die. The astery wilt is non-threatening. Responsible for this damage is a fungus that is difficult to combat.
So that this problem does not even occur, the location for autumn blackberries should be changed every few years. Do not disturb the drooping leaves, the bald spots can be covered with ornamental grasses in the foreground.
- Are autumnas also suitable as cut flowers? - Autumn asters are great as cut flowers and make the last greeting in the summer. Autumn blacks can reach up to two meters, depending on the variety. The advantage, however, is that the aureole after the cut for a vase do not have to be shortened to the ground, because in the best case it drives on the sides of new shoots with flowers.
- Can autumn burls be planted in the pot? - Autumn burls are suitable for cultivation in the pot, but care must be taken that the vessel is large and heavy. Due to the heights that can reach the plants, it may otherwise happen that the pot simply falls over because of the top-heavy. The pot, as well as the location in the garden, should be filled with a nutrient-rich permeable substrate. For wintering, the pots should be well tied and covered with brushwood at the top, so that the plant is not damaged by the frost.
The Rauhblattaster, botanical name Aster novae-angliae, is an autumnalaster. Their name comes from the Greek and means translated star. The name refers to the star-shaped flowers of most species.
- The Raublattaster is also known under the name Alma Pötschke. She is one of the brightest asters under the Raublattastern.
- It has a strong red and provides in every garden for a welcome splash of color in the fall.
- The Aster novae-angliae is considered a very robust and upright growing aster species.
- It feels most comfortable in a sunny spot and in a slightly humid and humorous garden soil.
- The Raublattastern grow best when the location every three to four years is changed.
- Autumn asters and thus the Aster novae-angliae in spring are planted.
If you want to have well-branched Raublattastern, then you should pruning the perennial bushes in June by a third. So they can grow much more branched later. In addition, it is very helpful to tie individual, high-growing autumn blackberries to poles or special perennials. This avoids that the plants bend over.
- To develop splendidly, the Raublattaster needs as mentioned a slightly moist and humus-rich soil.
- Experts speak in this context of a fresh soil, but this has nothing to do with the age of the earth.
- This refers to soils that remain predominantly moist in the area of the roots.
- For a sandy soil, water retention is not so good.
- Also, the ability to store nutrients and deliver them to the roots when needed is not the case with sandy soil.
- Autumn butterflies like the Raublattaster but love a well-fertilized soil in a sunny location.
- They grow so abundant with sufficient moisture and nutrients that experts recommend trimming some of the perennials by one-third in June.
- These parts then flower later, extending the entire flowering period of the perennial.
- But even if the soil can store the moisture well, you should water the Raublattaster very well in the summer.
- Especially in the dry late summer, the Aster needs a lot of moisture.