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Common Ragweed is an annual, herbaceous plant that also spends the winter in green. It is one of the few plants in our latitudes that manage to develop flowers even in winter. The Greiskraut colonized as Ruderalpflanze debris or debris fields and occurs on almost all not too dry and nitrogen-rich fields, construction sites and not least increasingly in gardens. Standing on relatively open surfaces, it can reach heights of growth of up to 40 cm. In densely planted perennial beds, however, the ragwort grows only a few inches high.
- botanical name: Senecio vulgaris
- other names: Common Ragweed, Common Ragwort, Common Ragwort
- belongs to the genus of the Greiskräuter in the family of Korbblüter
- annual (or annual overwintering) herbaceous plant
- Growth heights: 10-30 cm
- Flower: yellow tubular flowers, relatively small (5mm) on knotty, loosely leafy stems
- Flowering period: no specific flowering period, year-round, in good conditions even in winter
- Leaves: ovate, serrated pinnate
- very poisonus
Of all the old herbs, the common Ragweed is the most common. It grows after a very short time on freshly processed soils that are rich in nutrients. It is related to the dandelion, which resembles not only in leaf form, flower and umbrella-shaped seedbed, but also in its dissemination. Senecio vulgaris does not necessarily need the full sun, but also copes well with partial shade, but it grows only a few inches high in poorer conditions. In soil conditions, Greiskraut prefers a dry to slightly moist substrate, which is well permeable to water. The best are slightly mineral soils suitable.
- Light requirement: sunny to partially shaded
- Soil: nutritious and dry to slightly moist
- pH: 5.0-8.5
- does not tolerate high salt contents
Since the herbaceous plant grows annual, the planting in spring offers. Senecio vulgaris is best planted when planted in groups of at least 5-10 plants as ground cover in a field bed. But even on the balcony or terrace, it is very easy to clean in pots or window boxes. If early ragweed plants are used, they should be removed very carefully from their pot. On the one hand the plants are poisonous (gloves), on the other hand the sensitive leaves break off very fast. The most skillful way to grasp the plant directly under the leaves, to pull them out of the pot.
- Planting time (open air): in May (after the Ice Saints in mid-May)
- Planting time in flower pots: March to April
- Loosen soil well in advance
- ideal are loamy sandy soils
- in wet or compacted soil, add grit, sand or pumice
- in very sandy soils add compost or humus
- Plant use (same ground level as in the pot)
- Planting distance about 20 cm
- easy to water
- regularly remove weeds
- a part peat substrate
- two parts garden soil
- a part of quartz sand
- a part of lava granules or pumice
Pouring and fertilizing
Senecio vulgaris loves nutrient-rich soils, which contain a lot of nitrogen. That's why it feels very comfortable near vegetable beds. If the ragweed is planted alone in a bed, it should be fertilized with compost or other low-salt long-term fertilizers containing nitrogen (organic fertilizer such as horn shavings) in the spring. The plant grows best if it is always poured only when the soil is dry again. But it must never dry out for a long time. Waterlogged roddies do not like waterlogged soil at all. Tip: Caution is advised when planting ragwort not only because of its toxicity, but also because of its uncontrollable spreading behavior. The airworthy seeds spread quickly. What started with targeted cultivation can quickly become a nuisance.
Likelihood of confusion with the Gartenrauke
Certain substances (alkaloids) in common ragwort are toxic to humans and animals (carcinogenic and liver damaging). For this reason, accidental consumption should be excluded. Be careful if you have small children or animals that could eat the plant. In addition, there is a likelihood of confusion with rocket, whose leaves look similar. Ragwort likes to grow wild between vegetables, as the nutrient levels in the soil are optimal there. It has often happened that the herb has also appeared in salads.Distinguishing features between garden yarrow and ragwort:
Characteristics Rocket (Eruca)
- four single white petals (petals)
- propeller-shaped and very narrow
- clear brown-violet veins
- Size: about 10 mm
- perennial (perennial) species: yellow flower, four (slightly wider) petals
- yellow tubular flowers, usually long as a bud half closed
- above, the yellow petals look like a brush
- Petals: very narrow, high number
- after opening the umbrella-shaped seeds are formed quickly (similar to dandelion)
- Leaves: meaty arugula with rocket, cobwebbed with whitish (silvery) hairs
Actually, the Common Ragweed is an annual plant, which survives the winter under good conditions. Here, the herbaceous plant is tough: Leaves and inflorescences survive even severe frosts (down to -15° C) often unscathed.
Who wants to remove the common ragwort from his garden, should not resort to the same chemical agent. Since the plants spread mainly in kitchen gardens, whose bottom is very loose, they can be taken in many cases simply in the lower stem area and pulled out. After weeding, the stems of Common Ragweed may re-grow and regrow when thrown carelessly on the ground. Therefore, they should be collected immediately and disposed of in the residual waste bin.
The plant develops up to four generations a year. Even if only 100 seeds per plant develop (usually more), in just one year about one million offspring are possible! Fortunately, the seeds usually fly only a few feet, so their range of spread is limited. So if you want to permanently expel the plant from your garden, it is essential to prevent the development of the seeds. It does not necessarily remove the whole plant from the earth, but it is sufficient to pluck the flowers several times a year - and before the flyable Samenschirmchen form! However, the flowers should not be thrown on the compost. Even after cutting or weeding, the yellow tubular flowers can form seeds capable of germination, which find an ideal nutrient medium on the compost.
Conclusion of the editorship
It does not matter if the common ragwort is cultivated as a cultivated plant or grows wild in the garden: always a little caution is required. The plant contains poisonous alkaloids and is very prolific. It quickly spreads throughout the garden and is often mistakenly mistaken for rocket.
Worth knowing about the Greiskraut in brief
- Succulents are plants that have adapted to our climate, often from warmer climates.
- They are an enrichment for rock gardens, walls but also for the windowsill.
- They all have in common that they are insensitive to heat and require little care and water.
- Where other plants find no food, the undemanding succulents are the winners.
- The Senecio vulgaris, called common ground-weed or common ragwort, is one such plant.
- She is undemanding and thrives everywhere. Whether on roadsides, on construction sites or in the garden.
- Senecio vulgaris loves it a bit wetter than most succulents, it belongs to the genus of Greiskräuter and is a daisy family.
- Senecio vulgaris is reminiscent of an aster. So is the flower basket constructed.
- There are these plants both as Sommerblüher but also in other seasons you can find flowering plants.
- Senecio vulgaris multiplies by pollination by bees but by self-pollination.
- The seeds can be seen flying as small umbrellas and these umbrellas then pollinate the neighborhood.
- A nitrogen-rich soil is sufficient for the Greiskraut. Therefore, the plant is also considered a nitrogen indicator.
- Whether Senecio vulgaris is now an herb or a weed is up to the gardener to decide.
- The gardener just has to be careful that the distribution does not get out of hand, because like all herbs, it grows quickly and easily.
- And the flying seeds also ensure a quick spread in the garden.