Necessity of pinching and topping Dipladenia, and why it only climbs without blooming, develops brown spots, and has yellow leaves

It is well known that Dipladenia has a relatively long blooming period among plants, but some people find that even in summer Dipladenia does not bloom, while its vine growth is unaffected. So why does Dipladenia only climb without blooming? What are the reasons Dipladenia does not bloom? Here the editor will answer them one by one for everyone.

Why does Dipladenia only climb without blooming, and what is going on when brown spots appear on Dipladenia stems and the leaves turn yellow?

Under normal circumstances, Dipladenia blooms between April and October each year, but if care is improper, one situation may occur, and that is growing only vines without blooming. Why exactly does Dipladenia only climb without blooming? It is mainly directly related to temperature, watering, insufficient soil fertility, and insufficient light, and these four points are also the reasons Dipladenia does not bloom.

1. Insufficient soil fertility

The growing environment Dipladenia likes best tends toward warm and humid places. If the soil fertility is insufficient, it may lead to inadequate nutrition for Dipladenia. If only nitrogen fertilizer is always applied at ordinary times, it can promote the growth of its vines, but it will not bloom, so the situation of only climbing without blooming appears.

Treatment measures: After determining the reasons Dipladenia does not bloom, it is necessary to apply additional fertilizer to Dipladenia. Especially before the blooming period is about to arrive, apply as much phosphorus fertilizer as possible, and pay attention to the prevention and control of pests and diseases on Dipladenia. You can spray some monopotassium phosphate on its leaves. Doing so can promote Dipladenia to bloom.

2. Caused by watering

Many people think that after Dipladenia enters the blooming period, it should be watered more, but the result is that the more it is watered, the more slowly the plant grows, and the leaves may even turn yellow, making it very difficult for it to bloom. In fact, this is caused by excessive watering, which we mentioned in the methods and precautions for growing Dipladenia.

Treatment measures: Whether in the growth period or the blooming period, one point needs attention, and that is controlling watering, because too much watering is also one of the reasons Dipladenia does not bloom. Keeping the potting soil relatively dry is more suitable. Water again after the soil dries, and each watering should soak through.

3. Unsuitable temperature

Summer temperatures are generally relatively high, and outdoor temperatures can sometimes even exceed 38 degrees. However, this time is exactly the blooming period of Dipladenia. At this time, Dipladenia branches may grow very vigorously, but it will not bloom. It is very likely caused by excessively high temperature.

Treatment measures: If the plant is outdoors, appropriate shading measures should be taken for it to avoid exposure to the sun. At the same time, pay attention to ventilation so the temperature can be lowered appropriately. Once the temperature is well controlled, Dipladenia can bloom normally like other plants.

4. Insufficient light

Dipladenia needs relatively sufficient sunlight to bloom, but some people like to keep it in a shady place for care, thinking that as long as ventilation and temperature are maintained it is fine. But in reality, light is also one of the reasons Dipladenia does not bloom. The more it is in the blooming period, the more sufficient light it needs.

Treatment measures: Increase light for Dipladenia. The main methods are moving it to a balcony, outdoors, or a window, and supplemental lighting can also be used. When the plant has relatively sufficient light, it can bloom smoothly.

How to train climbing roses to climb, with an in-depth analysis from two aspects

Climbing roses are ornamental flowering plants with high ornamental value, and many people grow them in all regions of our country. However, as more people grow climbing roses, issues about training them to climb have also drawn more concern. So how do you train climbing roses to climb? Below, the editor will take everyone to learn about it.

I. How to train climbing roses to climb

As for how to train climbing roses to climb, it is actually mainly divided into two aspects: pruning and training to climb. As long as the correct methods are mastered, it is still very easy to operate. The specific operation methods are introduced in detail below. Let us take a look.

II. How to prune climbing roses

1. Pruning flowering branches

When we prune the branches of climbing roses, if we find that they have already bloomed, we need to pay attention when pruning. We should prune off the relatively robust flowering branches, leaving 2-3 buds on them, which can also prepare them for blooming again.

2. Pruning non-flowering branches

When we prune branches of climbing roses that have not bloomed, it is generally best to prune off the topmost section of the branch tip. If we see that there are many flowering branches at the top, then we should prune on its main trunk and prune off all its flowering branches.

3. Pruning old branches

For old branches of climbing roses that have grown for more than 2 years, new branches will grow on them. Thus, when pruning, in addition to the growth points of the new branches, we need to cut off all those old branches. After such pruning, the new branches will replace the old branches and become the new main trunk to continue growing.

III. How to train climbing roses to climb

1. Choosing supports

If we want climbing roses to climb, then we must train them. Before training, we first need to choose supports, that is, the frames used to create the shape. Of course, if you want to train them on a fence or a net frame, then supports are not needed, while other general places do need them. Generally, choosing some simple supports is enough.

2. Planning the training direction

When planning the climbing direction, it is generally best to choose some longer branches for the upper part and shorter branches for the lower part, then keep the left and right sides of the branches balanced. When training, try to follow its growth direction as much as possible, because the effect will be better that way.

3. Adjusting the overall layout

After the training direction is chosen and fixed, we need to observe its overall layout and the position of each branch, and see whether the distance between them is appropriate. If it is not appropriate, we need to loosen and readjust. Do not be afraid of trouble in this process. Be sure to adjust until satisfied, so that climbing can be smoother.

How nasturtium climbs, with seedling topping, setting up supports, even tying, and strengthened care

It is well known that nasturtium has a semi-trailing characteristic, so if cared for properly, it can climb on supports and walls. Of course, the premise is that some techniques are needed. So how does nasturtium climb? When do we need to prune? And when do we set up supports? Below, the editor will answer your questions.

How nasturtium climbs

1. Pinching during the seedling stage

After nasturtium is propagated, it will take root after 2-3 weeks, and when it grows 7-8 leaves, it can be pinched. The purpose of doing this is to make it sprout side branches and make climbing easier. Otherwise, if the main vine is too long and there are too few side branches, then climbing will be difficult to achieve.

2. Setting up supports

After pinching, supplement fertilizer and water in time, and then in about 10 days its new branches will grow out. When the plant height reaches 15-20 cm, this is the key period for climbing. At this time, how does nasturtium climb? Supports need to be set up in time, and then the stems of nasturtium should be evenly tied to the supports, with the leaves facing one direction.

3. Daily care

As nasturtium grows, its branches and leaves will become longer and longer, so it needs to be tied in time according to stem growth so that it can be evenly distributed on the supports. While tying, the growing tips also need to be pinched. For the method, refer to the detailed introduction in how to prune nasturtium.

Nasturtium planting and management

1. Nasturtium grown as a climbing vine is very beautiful, and the reason its leaf surface should face one direction is that its flowers and leaves have phototropism. It prefers an environment with light, so its position needs to be changed in time according to the light so that its leaves and flowering branches can grow in one direction. Otherwise, a messy condition easily appears.

2. During the growth period, fertilizer needs to be applied once every 3-4 weeks, and after each fertilization, water in time. At the same time, also pay attention to loosening the soil frequently so the soil maintains sufficient air permeability, which is good for the absorption of fertilizer and the development of the roots. If the soil is too compacted, root growth will be hindered.

3. In winter, the temperature cannot be lower than 8 degrees. At ordinary times, keep the temperature between 15-25 degrees. Too large a temperature difference will cause the leaves to turn yellow. After the temperature drops in autumn, it needs to be placed indoors in a place with sufficient sunlight, which can keep nasturtium leaves still emerald green in winter.

4. Nasturtium has a relatively low chance of being infected by pests and diseases, but we cannot ignore the harm of pests and diseases. It is mainly attacked by leaf miners, mosaic disease, and so on. Prevention is to strengthen daily care and management, while treatment is to spray with dimethoate emulsifiable concentrate and so on. When diseased plants are found, they should be pulled out in time.