The 10 Facebook questions of the week

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Every week our social media team reaches a few hundred questions about our favorite hobby: the garden. Most of them are quite easy to answer for the editorial team of MEIN, but some also require some research effort to be able to provide the right answer. At the beginning of each new week we put together for you our ten Facebook questions of the past week. The topics are mixed. This time, they range from the correct cut of the apple rose to bamboo care to the cultivation of wisteria in the tub.

Facebook: The top questions of the calendar week 11

1. Can the apple rose (Rosa rugosa) be cut back in March?

Like other shrub roses, the apple-rose can be cut just above the ground every spring. By this cut you keep it at a height of about 80 to 120 centimeters. If the annual cut does not last for years, then the plant grows old and becomes unsightly. Further care tips can be found in our plant portrait of the apple-rose.

2. Does it make sense to plant garlic near roses?

The essential oils of garlic have a scare effect on some pests, which can at least reduce the pest infestation on roses. Other herbs and perennials with a high proportion of essential oils such as lavender can reduce the infestation with pests.

3. Do banana peels in the soil help with the potassium supply of roses?

Many hobby gardeners swear by the use of banana peels in the soil around their roses. These rot quickly and release the nutrients they contain to the soil. The shells contain comparatively much potassium and magnesium and support the plants in the formation of leaves and flowers. However, the nutrients it contains can not replace a full-fledged rose fertilizer and what is much more relevant: The shells are often heavily chemically loaded by a high amount of spray. For this reason, you should only use the peels of organic bananas for this type of soil improvement.

Rose control

Regular checks on roses help to quickly detect and treat pest infestation or emerging diseases

4. Horsetail and stinging nettle drive much later than roses, but how can you still fortify the plants with vegetable fodder?

Before the rose cut the plants are not treated yet. This happens only after the first rose-cut, when the forsythia flower. Then you can treat the plants with a garlic-sud-cure. In order to keep away pests, we also recommend spraying the plant with stinging nettle once a week.

5. What can be done if bamboo looks dry and parched after the winter?

Dried leaves indicate a dry damage. It may well be that the bamboo got too little water in the winter, but this can usually be remedied again. Cut the arid stalks close to the ground and keep the soil moist around the plant. Since bamboo has a great regenerative ability, he should then drive out quickly.

6. What can be done against shotgun disease on Portuguese cherry laurel?

Unfortunately, it does not work without chemicals: you should first cut back on infected plants and then treat them with a suitable fungicide (eg "Duaxo" or "Ectivo") two to three times at intervals of just over a week. All already fallen leaves must be picked up and disposed of.

Damage to the cherry laurel

First signs of infestation with shotgun disease in cherry laurel

7. My dogwood is bleeding after the cut - what do I have to do now?

Some woody species are prone to bleeding when cut before leaf shoots. Due to the cut, the water railways are injured, which is why he then "bleeds". But this stops after a few days by itself. However, how harmful the bleeding is to the plant is not proven. It is therefore best to cut your dogwood after flowering.

8. How many plants of groundcover thyme are needed per square meter to obtain a closed plant cover?

Thyme not only adds spice to the Mediterranean cuisine. The perennial plant is also an undemanding groundcover that can not be beaten by days of heat and drought. To get a nice and closed upholstery as quickly as possible, you need about 12 to 15 young plants per square meter.

Thyme groundcover

The purple flowers of thyme together with dark or light green foliage make a vibrant color image

9. Is it possible to cultivate wisteria in large containers?

Wisteria is a very vigorous plant, which makes it too tight in the bucket. However, there are weaker varieties, which are also suitable for mild situations.For example: Mini-Wisteria Wisteria frutescens ('Longwood Purple' or 'Amethyst Falls'). These bloom already at a young age and can then be used well for the tub culture.

10. Is coffee grounds also suitable for fertilizing magnolias?

Coffee grounds are very suitable for fertilizing magnolias, because they prefer a neutral to acid soil. Actually, it can be used to fertilize all plants that prefer acidic humus soil. In addition to the rhododendron also include azaleas or hydrangeas.

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