When does the petunia top the petunia to pick the heart (diagram)

Topping and topping are very effective methods to promote the normal growth of plants in the process of plant cultivation. Topping and topping can remove the top advantage of plants well, avoid wasting the nutrients of the whole plant, and concentrate all nutrients to the most valuable places.

When does Petunia top?

Topping is one of the most important steps in growing dwarf cattle, and many novices end up with ugly flowers because they don't pay attention to topping. Upright varieties should be more ruthless in topping, generally retaining 4-6 leaves for the first topping, 6-8 leaves for hanging varieties, and the same for lateral branches. Pay attention to its branching condition during the period. Generally, when the weather is hot, the branching is poor, and flowering replaces branching. Branching ability is better in winter, after topping, new branches can basically be issued from leaf axils.

Petunia topping method

1, the role of picking

Petunia flowers are like the one pictured above, and the plant can only produce a few flowers if not picked in time. There will also be few branches, and it will be difficult to reach the bursting basin.

2. When to pick up the heart

It is best to wait until petunias grow 5-6 leaves and cut off the top with flower shears, leaving 4 leaves. When the branches grow five leaves, they can be pruned again,"cut 3 and leave 2." And so on, and then cut a number of times (depending on the situation and top, 2-3 times to achieve the effect of the ball). Note that daily care, a top to clean rotten flowers and leaves.

3. How to pick the heart

Flower friends in the operation of picking, picking tools can use scissors, you can also directly pinch off the top with your hands, rest assured to try. And if you think the cut branches are wasteful, petunia can be cut, directly cut off the branches, remove the leaves to leave the top core, low end sharpened, can be inserted in the soil.

How does Petunia winter?

1. Watering

First of all, we should follow the principle of "not dry, not poured, poured thoroughly". This principle is applied to prevent excessive water uptake and the occurrence of root rot or excessive shoot growth, which can cause flower bud differentiation and cold resistance reduction in later stages.

Secondly, for winter watering water, there are also requirements for re-use after sun exposure, in order to keep the water temperature close to room temperature.

The last watering time is best around noon. If you choose evening watering, it will cause freezing damage to the roots of flowers due to cold temperature.

2. Fertilization

Fertilization should be based on the specific growth of petunia, appropriate nitrogen fertilizer application.

3. Other aspects

Because the air in winter is relatively dry, water close to room temperature should be used indoors to spray the leaves of petunia to keep the leaves clean and promote normal photosynthesis, but pay attention to spraying the leaves without increasing the moisture in the pot soil to avoid the occurrence of rotten roots.

Winter is also the season when aphids, scale insects, whiteflies and other pests are easy to occur, so prevention and control must be done at all times. Do not spray fenvalerate as much as possible after aphids appear, so as not to cause phytotoxicity, which is unfavorable to the growth of petunia.

How does Petunia burst?

Temperature: To ensure that the temperature is within the range most suitable for it, it can provide a basis for its explosion basin. For this kind of plant, the most suitable range is 13 to 18 degrees. Once the temperature is relatively low, do not leave it outdoors, but move it indoors for maintenance.

2, lighting: To achieve the effect of the explosion basin, the light is sufficient, this condition is to be guaranteed. Especially when the growth rate is fast, this stage is the critical period of bursting basin. At this time, there is no need for shade, except for the extreme intensity of the light.

Water: It grows faster in summer, so there is more water. In the morning and evening, it is best to water twice. However, special care should also be taken not to accumulate water. Also, don't let it get too much rain.

4, soil: first of all, loose and fertile these two requirements. Then, considering that it cannot be flooded, it requires good drainage. So, we'd better choose sandy loam.

Petunia topping and topping methods in the text have a more detailed description, in short, want to grow a good petunia, there are still a lot of things to master, but really want to plant friends, pay hot will certainly solve the problems in the planting process together with everyone.