Ziergarten: The best gardening tips in June

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Cut, fertilize, multiply: In June, you can get active in the ornamental garden. Which works are in the program this month, we tell you in our gardening tips.

Cut the occasional flowering clematis

Many early-flowering Clematis species flower twice a year - in May-June and August-September. So that the plant does not put too much force into the seed formation after the first bleaching session, you should remove the fruit stalks, together with the pair of leaves underneath. So follows a lush second flowering.

Shorten young sticks

Most of the flowering shrubs can be easily propagated by means of woodpile. At the latest in June one knows, whether it worked with the cultivation. Then the shoots are knocked out, which were cut last winter by Forsythie, currant, Deutzia, Weigelie and pipe shrub and put into the ground. As soon as the young shoots are about ten centimeters long, cut them in about half way. In this way, the shrubs can branch well and become pretty bushy. The rooted young plants can best be transformed next autumn.

Mow the new lawn for the first time

If you sowed a new lawn in May, you should mow it for the first time. Until the first mowing the grasses should have reached a height of eight to ten centimeters, cut first is not less than five centimeters. For the next mowing dates, set the mower one level down until you reach the desired final mowing height. This should not be less than 3.5 centimeters.

cut the lawn

Do not mow newly created lawns too short

Second fertilizer appointment for the lawn

In June, the turf grasses have achieved their strongest growth. Then it's time to give the green carpet a second time with a long-term fertilizer. This happens after mowing, ideally in dry, slightly cloudy weather. It is important to spread the fertilizer evenly. Experienced gardeners distribute the nutrients by hand. If you want to be on the safe side, you better take a spreader and, as with lawn mowing, drive over the surface line by track.

Leaf-spot fungus on flower-dogwood

The American flower dogwood Cornus florida and Cornus nuttallii place high demands on the location. Heavy and loamy soils, waterlogging or too high a pH-value are bad for them. The weakened trees are susceptible to the fungal disease anthracnose. This leaf-spike fungus can change from leaves to shoots and stems in humid weather, killing the entire shrub. Our garden tip: The Asian flower dogwood (Cornus kousa and Cornus kousa var. Chinensis) as well as hybrids like the variety 'Venus' are more adaptable and resistant to the fungus. They are therefore the better choice. The other flower dogwood are only suitable for the sandy-humus and acidic North German soil.

Larkspur: Support flowers

High shrubs with heavy inflorescences such as the Larkspur buck easily in wind and strong thunderstorms. Therefore, you should now support the flower stems. In the garden center, special perennials made of durable fiberglass or plastic-coated wire are available - but you can also produce the supports yourself from peeled willow rods.

Larkspur perennial support

Whether homemade or bought, choose the perennial holder from the beginning big enough, because once it is grown, it is difficult to remove

Gardening tip: sow two-year-old

Now you can sow bearded carnations, gold varnish and other biennials directly into the bed. The young plants are then separated in August or September and placed in the place where they should flower in the following year.

Pruning for upholstery

The spring flora in the rock garden is finally over in June. Now trim early blooming upholstery such as blue cushions, upholstery phlox, and red cabbage (Alyssum) to keep them compact. The same applies to flat shrubs such as sandflower (Iberis), sunflower (Helianthemum) and holy herb (Santolina). With a hedge trimmer, the pruning is the fastest. Rule of thumb: remove about a third of the shoot length.


The early-flowering blue cushion (Aubrieta x cultorum) should be pruned in June

Clean lilac after flowering

Lilac shrubs (Syringa) are cut after flowering. Remove the withered inflorescences to encourage the formation of new flower buds. Four and more years old branches should be removed as close to the ground as possible, as their ability to flower formation decreases rapidly.A very strong pruning but should be well considered: It promotes the formation of foothills, which often sprout several meters from the mother plant away from the ground or the lawn.

Not all hedges can stand a strong pruning

From the end of June the hedge trimmers can be heard again everywhere. This time is favorable because the shrubs have completed their first phase of growth. With strong-growing hedges, another cut is possible in the second half of August. Stay shearing in the leafy or needled area. For some hedge plants resent a radical cutback, such as fake cypress and the tree of life (Thuja). The resulting holes close only sparsely to not at all. Ideal is a trapezoidal cut, so narrower at the top than below. In this way, all branches get enough light and the base does not verkahlen so fast.

Cut hedge

At the end of June, hedges need a shape cut - only so they remain compact and dense

Increase ornamental shrubs through cuttings

When cutting form trees such as boxwood and privet many branches are created which can be used for propagation. Take lightly woody annual shoots and cut them into five to ten centimeters long sections. Then remove the leaves in the lower third and place the cuttings in a plant tray with potting soil. Pour the cuttings well and then cover the tray with foil. The duration of rooting depends on the plant species: privet usually takes hardly three weeks, while in boxwood this process can take up to half a year. Also flowering shrubs such as scented jasmine, Kolkwitzie and peasant hydrangea (Hydrangea macrophylla) can now multiply by cuttings.

Garlic brew against mushrooms

Add garlic sauce

The biological brew should be applied preventively on a regular basis

The use of brews, hibernates or teas against fungi or pests must always be preventative, and the applications must be repeated regularly. Garlic can be used as a tea or liquid manure against fungal diseases (such as gray mold or mildew) in the garden. To do this, add one gram of fresh, grated cloves of garlic to a liter of water in a plastic container (for example a bucket). Let it rest for ten days and stir regularly. After screening, dilute the slurry in a ratio of 1:10 and then apply with the garden sprayer.

Insert spray properly

Prefer biological preparations and use the agents exactly according to the manufacturer's instructions. Overconcentration is not only forbidden, but also unnecessarily expensive and does not bring greater treatment success. Only use enough broth to leave no residue. Pay attention to a good mixing of the solution. The best time to apply pesticides is a warm, windless day in dry weather: the leaves of the plants must be dry, otherwise the preparation is too diluted and does not develop the optimal effect. In the case of persistent pests, spray several times with the manufacturer's recommended interval. Thoroughly clean the empty sprayer immediately after use.

Fight algae in the garden pond

In warm summer weather, make sure that the algae in the garden pond do not get out of hand. It is best to fish the filamentous algae with a small rake by gently pulling it through the water. At the same time you should try with mineral binders such as zeolite to lower the nutrient content of the pond water. Hang the rocks in a plastic net into the water. If the absorption capacity is exhausted after a few weeks, you can incorporate the now nutrient-rich granules in the garden soil or mix them under the potting soil.
On hot summer days, the water level in the garden pond drops continuously due to evaporation. If the drought persists, replenish your pond with stored rainwater. Let the water run into the pond as carefully as possible, so that not too much mud is whirled up.

Maintain and fertilize roses

Those who regularly remove the withered rose petals will be rewarded with a new pile. But beware: This only applies to more flowering roses, so varieties that constantly add new flower buds. In such bedding, noble, shrub and climbing roses, the withered shoot tips are cut back to the first, fully developed leaf.
Because the flower formation costs strength and the plants should remain vital, the roses middle, get again in late June nutrients. For this, it is best to take a special rose fertilizer. Easy to incorporate, because it needs soil moisture to be effective. Game species, such as dog, pike and beaver rose, remain uncut by the way. Although these shrubs bloom abundantly, but only once a year. Leaving the old inflorescences, mature in the autumn, a beautiful rosehip jewelry, which often adheres to the plants until winter.

Withering rose petal cut

With the summer cut after the first flowering you stimulate the new shoot with more flowering roses

Sharing colorful daisies

The 70-centimeter-high colored marguerite (Chrysanthemum coccineum) is by nature short-lived. So that you still have as long as possible of the attractive perennials, you should cut off the plant at least every two years after flowering in June / July, divide it into fist-sized pieces and put it back in the bed elsewhere. In this way you counteract the natural aging process.

Withered rhododendron blooms erupt

There are certainly more beautiful activities in the garden than to remove wilted rhododendron flowers individually, but it's worth putting this gardening tip into action. Apart from the optical aspect of the rhododendron then puts his power into the formation of new flower buds in the development of seed pods. Just take the old inflorescence between your thumb and forefinger and break out sideways. Providing the trees with a rhododendron fertilizer this month will add energy. The care measures will be thanked in the next year with rich flor.

Maintain rhododendron

In order to enjoy the rhododendron bloom again next year, you should break out the withered inflorescences

Summer cut for blue rain

The wisteria (Wisteria) is extremely vigorous and should therefore be cut twice a year. After the winter cut, in which the shoots from the previous year are cut back on a few buds, a summer cut is due in June. Cut all new cords back to four to five leaves to keep growth under control.

Climbers: direct shoots

Most climbing plants grow particularly strong in May and June. So that the shoots do not intertwine to an impenetrable thicket, you should intervene in time and guide them evenly through the climbing aid.

Shrub peonies: cut inflorescences

Cut the withered inflorescences above the first leaves of your shrub peonies in June. In this way, you stimulate growth and flowering for the next season. If the plants are only slightly branched, a stronger pruning of last year's shoots is possible. However, you should not prune the flowering shrubs down to the perennial wood.

Cut back on the columbines

Cut the semi-ripe seeds of the columbines before opening and spreading their seeds. By self-sowing the attractive perennials can quickly take up larger garden areas. In addition, the vital seedlings displace the purchased noble varieties over time - at some point then only the blue flowers of the wild species can be seen in the perennial border.

Cut Columbine

Who wants to prevent self-sowing, should remove the seeds of the columbine

Remove blooms regularly

For short-lived plants self-seeding is certainly desirable. Durable species, on the other hand, weakens seed formation unnecessarily. Here you should consistently remove the old Flor. For some perennials, this measure even helps to increase flowering time, such as phlox, sun-eye and peony. However, these plants are not completely withdrawn, but only the withered panicles or the withered stems cut off to the first trained leaf.

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