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The generally considered robust and undemanding laurel cherry can certainly cause problems. Often, yellow discolored leaves are found on the cherry laurel, which rapidly infest the entire plant. The reason for this is difficult, because many factors can have a negative effect on leaf coloration. However, to promote the health and resilience of your evergreen plants, research into causes is almost inevitable. Incidentally, it is a fallacy to assume that only freshly planted or young cherry laurel plants are prone to such deficiency symptoms.
The right location
Every plant has its own requirements for the soil and light conditions. Cherry laurel belongs primarily to the rather undemanding plants and often copes with adverse site conditions. But against the toxins in the soil or planting in a wind tunnel even the robust evergreens have little to oppose. Yellow leaves and often a worrying growth are the result in this case. If you have repeated problems and problems with your plants in one location, you should have a professional soil analysis done. This is associated with costs, but much more effective, than on good luck even rumzudoktern the substrate.
Prunus laurocerasus, the Latin name of the laurel cherry, needs a humus rich, deep soil. The substrate should not be too acidic. The regular mulching and fertilizing is one of the basic care measures. The plant of the family of the rose family is especially used as an evergreen sight in the garden. However, especially young cherry berries are extremely susceptible to wind and cold. Already at the planting, however, you can fall back on a proven trick, which facilitates rooting for the young plants: Sprinkle directly in the planting a few handful of semi-mature compost. Due to the slow decomposition of the material, the still sensitive roots of the evergreens are supplied with heat. Avoid a sunny spot and allow Prunus a bright, partially shaded spot in your own garden.
Evergreen plants retain - as the name already suggests - even in winter their dense, dark green foliage. The plants bring color into the otherwise dull landscape and provide birds and other animals a sheltering refuge. Cherry laurel is one of the hardy plants. But the resilience of these plants has its limits. Some varieties of laurel cherry can survive only in winter-mild regions unscathed the cold season. For this reason, you should inquire about the requirements of the respective Prunus species before you buy them.
- In addition to compost in the planting hole, sprinkle a warming layer of bark mulch.
- Additionally protect young or newly planted plants with burlap.
- choose hardy varieties.
- Only buy healthy plants.
The right supply of water
The robustness and resilience of cherry laurel quickly reaches its limits when it comes to the topic of "casting". Even the root system of older plants is sensitive as soon as it is exposed to permanent wet conditions. Even before the fungus fungus attacks the laurel cherries and causes root rot, it is the leaves that turn pale yellow. With potted plants, you can avoid waterlogging by applying drainage from potsherds or lava chips to the bottom of the vessel. In the garden you can create something similar. Mix the excavated soil with fine pebbles. These counteract compaction of the soil and ensure that pouring water and rainwater can flow off more easily.
However, as well as waterlogging, long-term dryness also has a negative impact on the ornamental family. The root ball of the plants must not dry completely. Winter is a critical season for the cherry laurel. Many gardeners simply forget that evergreen plants must be watered in winter. If the plants do not survive the winter months, they are usually not frozen, but simply dried up. Therefore, react immediately when the leaves of the laurel cherry change color in autumn or winter. Cast only on frost-free days with lukewarm water. The laurel cherry is sensitive to a high lime content. For this reason, not only the location should be selected as free of lime, but also the irrigation water must not contain lime.
Problems with the nutrients
On the other hand, just the opposite may be the case. No matter what type of fertilizer you use, there is always the principle here: less is more. Like standing wetness, plants can not handle excessive nutrients. The root system "burns" downright and is no longer able to absorb enough water. As soon as you see the signs, quick help is advised. You can quickly replenish undersupplied plants with fertilizer. In case of oversupply it is advisable to remove the substrate generously and replace it with lean soil. In winter, all fertilizers are banished to the farthest corner of the garden shed or garage. If yellow leaves on the cherry laurel appear in the cold season, there is usually another reason.
The disease chlorosis is common in cherry laurel. This is not caused by pests or fungi, but is purely due to a chlorophyll deficiency. Characteristic of chlorosis are the green leaf veins on the otherwise yellow leaves. Possible causes of the disease can be:
- Poisoning by herbicides.
- Excessive pouring with calcareous water.
- High lime content of the substrate.
- Strong temperature fluctuations.
- Deficiency of iron, nitrogen, magnesium, potassium or calcium.
This shows that evergreen plants are by no means indestructible. Like all other plants in the garden and on the window sill, the laurel cherry is also dependent on the right care and optimal location. Yellow leaves on cherry laurel should by no means be taken lightly. Almost always there is a lack of it, which can quickly develop into a threatening disease.