The shrub is an easy-care plant, but you should take some points to heart so that diseases and pests don't stand a chance.© Dmitry - Fotolia.com The finger bush or Potentilla fruticosa is a colorful ornament for every garden. The plant copes wonderfully with our climate and thrives in its native China even under the most extreme conditions. No matter whether alone or planted as a hedge, the rose plant is always an eye-catcher. In the meantime, there are numerous cultivars with differently colored flowers and different heights. What should be taken into account when caring for the finger bush can be read here.
Water the shrub properly
The shrub is robust and forgives some maintenance mistakes. However, this does not apply to prolonged drought. Once the roots have dried up, the plant can no longer absorb nutrients and atrophy. Regular watering is therefore necessary, especially in very dry summer weather when the soil dries out quickly. The plants prefer to stand in full sun, which encourages abundant flowering, but unfortunately also dries up the soil.
Already during planting, the plant's high fluid requirement must be taken into account. The shrub is best washed in well in the planting hole before the last layer of substrate is applied. Watering is necessary regularly, the soil must not dry out completely. In addition, however, waterlogging should also be avoided, which requires a little sensitivity when pouring.
➔ Tip: A layer of mulch protects the soil from drying out.
Fertilize the shrub properly
The finger bush should not lack moisture. If the plant is watered sufficiently, its survival is virtually assured. The rose family is rather modest in terms of nutrient supply. A nutrient-poor soil is even an advantage because an oversupply of nutrients can have a negative impact on flower formation.
However, fertilization does not have to be completely avoided. In spring, a small amount of complete fertilizer can stimulate growth. In early summer, nettle slurry or horn shavings can contribute to general strengthening.
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From July, the finger bush will no longer receive fertilizer. If you continue to fertilize, you risk a new shoot before winter. This damages the otherwise hardy plant.
Finger shrub: a short introduction to some beautiful varieties
|Finger shrub variety||particularity|
|Red Ace||This variety grows up to 70 centimeters in height and is also suitable for window boxes or as a hedge plant.|
The flowering period extends from June to October.
The flowers shine in an impressive red-orange.
|leprechaun||This species reaches heights of between 50 and 80 centimeters.|
Kobold blooms from May until October.
This finger shrub appears very attractive as a hedge plant.
The plate-shaped flowers are characterized by a bright yellow shade.
|Abbotswood||Abbotswood can grow up to one meter high.|
The plant requires little maintenance and is resistant to mildew.
The white flowers appear between June and October.
|Daydawn||Daydawn grows up to one meter in height.|
This species is very popular as a hedge plant.
The large salmon-colored flowers contrast nicely with the light green foliage and appear between June and October.
|Goldfinger||Goldfinger can be described as a giant among the shrubs.|
The plant grows more than a meter high and impresses with its up to three centimeters large golden yellow flowers between early summer and autumn.
Does the finger shrub need to be cut?
It is not absolutely necessary to prune the shrub regularly. However, if there is a need to make a topiary cut or to prune the plant largely to redefine the crown, this is easily possible. The rose plants are very well tolerated by cutting and will sprout reliably even after being cut back into the old wood.
➔ Tip: Finger shrubs are preferably cut in early spring. This promotes a compact and bushy growth.
Detect diseases and pests
The finger shrub is a robust plant that defies even extreme conditions and also forgives many maintenance mistakes without reacting to falling leaves. However, the finger bush can also be affected by diseases from time to time. The following can occur in detail:
- Leaf spot
- iron chlorosis
This is the most common disease of the finger bush. The cause is a mushroom. The disease can be recognized from the leaf spots, which are brownish to reddish yellow. Leaf blotch disease is caused by various maintenance errors.
- The plant is too wet.
- The floor is too firm.
- The plant is light.
All infected leaves should be removed. The leaf cut does not belong in the compost, but in the household waste.
The cutting tools used must be thoroughly disinfected after use so that the disease is not transmitted to other plants. In case of advanced infestation, a fungicide should be used. In this case, biological measures have no effect. It will often be necessary to dispose of the shrub.
Iron chlorosis is caused by iron deficiency. This usually equates to an excess of lime in the soil. The plant's chlorophyll formation is disturbed by the unbalanced soil conditions. The result is stunted plants with yellow leaves. Soil analysis provides certainty about iron chlorosis. As a countermeasure, special iron compounds are injected.
➔ Tip: Dusters of humus can create a slightly acidic environment in the soil and thus prevent excess lime.
If the leaves of the shrub are covered with a gray-white coating that can be brushed off the leaves like flour, the suspicion of mildew is obvious. The mushroom comes in the form of real and downy mildew. Powdery mildew is easily recognizable as it spreads on the top of the leaves and can also affect the buds and shoots. Downy mildew is likely to remain undetected for longer, because this mushroom lawn only spreads to the undersides of the leaves.
Powdery mildew is mostly due to unfavorable site conditions. The plants should not be too close together or exposed to strong changes in temperature. In the event of an infestation, all affected plant parts must be removed and disposed of with household waste. Spraying with nettle or garlic brew can help with mild infestation.
The finger bush is hardly affected by pests. However, aphids stop at hardly any plant. Aphid infestation is comparatively harmless. If the leaves curl up or curl, the small green, yellow or black culprits can usually be seen on the undersides of the leaves or on the shoots.
Showering with a hard water jet often helps against aphid infestation. Soapy water or a milk-water solution can also be used.