What to do when plants have yellow leaves and won't bloom? Handle it this way and they'll look even better than newly bought ones

Many flower growers panic easily when they run into problems and don't know where to start. Today Huahua will teach everyone a simple "diagnosis and treatment" method that can pinpoint the symptoms in just one second!

Common Ailments

Complete Guide to Flower Growing

During the care process, the most common problems can be summed up as the following 2 types: the part above the soil and the part below the soil.

The Part Above the Soil

Generally, the part above the soil is prone to: no new leaves, yellow leaves, withered leaves, fallen leaves, spots on leaves, holes, no blooming, few blooms, bud scorch, short blooming period, pests and diseases, and other problems.

The Part Below the Soil

Common problems below the soil include: soil too dry, too wet, insufficient fertility, poor air permeability, small insects, too acidic or too alkaline, and so on.

Once you understand the symptoms, you need to figure out what the cause is in order to prescribe the right remedy. Below, Huahua will explain how to check the cause!

Cause Check: Problems Below the Soil

Complete Guide to Flower Growing

When you can't determine the cause, follow the principle of "below first, then above", that is, check the potting soil first. Never blindly water and fertilize, which will only make the problem worse.

When the Situation Is Not Serious

1. Dry and wet state: You can insert your hand 2cm deep into the soil. If it feels slightly moist and the soil layer is soft, there is no need to water for now; if it is too dry, water it at the right time according to the flower's preferences.

2. Soil fertility: To judge fertility, look at the color. If the color is too light and the soil layer is compacted, then fertility is definitely insufficient. You can use decomposed liquid fertilizer water to improve fertility and loosen the soil at the right time.

3. pH level: The simplest way to test pH is to use pH test paper. When it is too alkaline, you can water with some diluted vinegar or ferrous sulfate to improve it!

When the Situation Is Serious

When there is no major problem with the soil medium, you can use a small shovel to dig open the soil layer and check the root problem. If the roots are rotten, you need to dig out the plant and perform "surgical removal".

1. Gently shake the soil off the exposed flower roots, then rinse them clean with water;

2. Use scissors to cut off the rotten roots from bottom to top, then apply plant ash or fine stove ash to the wounds;

3. Soak the treated roots in a 0.1% potassium permanganate solution or diluted carbendazim solution for about 1 hour, then place them in a cool place for about 1 day to dry;

4. After the roots are treated, replace the soil and repot.

Cause Check: Problems Above the Soil

Complete Guide to Flower Growing

There are 3 factors above the soil: light, air humidity and pests and diseases.

Judging Light

1. Generally, when leaves turn yellow and droop, flower branches are thin and weak, flower buds turn yellow and fall off, or flowers are too small or fail to bloom, you can judge that there is too little light.

2. Flowers with small, dense leaves are mostly semi-shade plants, such as camellia, asparagus fern and asparagus, and need to be kept in a spot with scattered light indoors; flowers with large, sparse branches and leaves are sun-loving plants, such as bougainvillea, jasmine, dahlia and scarlet sage, and should be placed outdoors or on a south-facing windowsill to increase light.

Judging Humidity

Air humidity is a problem that many flower growers easily overlook. Why do flowers bought at the flower market quickly wilt once you bring them home? It is because the humidity at the flower market is much higher!

1. If the leaves are pale yellow, with dry and withered edges and no luster, or the flower color fades and the blooming period shortens, it means the air humidity is too low. At this time, spray the leaves and branches moist, or cover the plant with a plastic bag to increase humidity.

2. During indoor care in spring and summer, if petals become moldy and rotten, flowers fall, or pests and diseases spread and branches and leaves grow leggy, it means the air humidity is too high. Open the windows in time to ventilate and exchange air!

3. Generally, keeping indoor humidity at 60%-70% is enough. Above 70% is bad for home appliances and furniture; below 60%, you can spray water on the floor to increase humidity. It is recommended that flower growers hang a wet-and-dry bulb hygrometer indoors, which is convenient and easy to use!

Pest and Disease Control

Generally, flower pests and diseases are mainly divided into three major categories: fungal, bacterial and viral.

1. Fungal: When the environment is too wet, it is easy to become infected with fungi. The main signs are mold-like and powdery substances growing on the leaves, rotting and discoloration, necrosis, wilting, root decay, and so on;

2. Bacterial: Bacterial infections are not common. The usual signs are ulcers and bacterial pus on the leaves that look like water stains or oil stains;

3. Viral: In hot summer environments, flowers are prone to pest damage and thus become infected with viruses. The main signs are spots on the plant, ring-shaped patterns, deformity and dwarfing, and so on.

When flower growers find that a plant is infected with pests or diseases, they should immediately perform "amputation surgery" and cut off diseased branches and dead branches to prevent transmission to other parts.

Checking symptoms is actually very simple

Flower growers, once you have learned it

you can also be an experienced doctor!