Orchid is a culture that is quite demanding on keeping conditions. It takes a lot of work to grow a beautiful, healthy flower, providing the plant with the right conditions. Sometimes, despite all the efforts of the owner, the orchid leaves turn yellow and wither. In some cases, complex treatment will be required to fix the problem.
why do orchid leaves turn yellow and fall off?
There are many factors for the appearance of yellow leaves on an orchid. This can be due to both natural processes and plant diseases. However, most often yellowing is caused by violations of the rules of care.
The orchid is a very sensitive plant and reacts quickly to any negative factors. Leaves can turn yellow:
- violation of the irrigation regime;
- poor quality of water used for irrigation;
- lack of light;
- the wrong approach to feeding.
Violation of the watering regime
Leaf health directly depends on the condition of the root system. Violation of the watering regime is the first thing to look for when yellow leaves appear on an orchid.
Yellowing can be caused by:
- excessive watering;
- excessive water hardness.
With frequent and abundant watering, the soil does not have time to dry out. Stagnant water impedes the normal air permeability of the soil. As a result, the roots begin to rot, the process gradually moves to the neck of the plant. At the same time, the leaves lose their natural color, become lethargic, become covered with damp spots and die off.
Reference! If the problem is not corrected in time, the root system will be irreversibly damaged. The plant cannot be saved.
With a lack of moisture, yellowing of the leaves is observed, but unlike waterlogging, they are not covered with wet spots. Hard water can also cause yellowing. Over time, the soil becomes overloaded with salts, and the plant cannot take enough nutrients from it.
Here is a guide on How To Transplant An Orchid Baby?
Lack or excess of light
Lack of sunlight leads to the fact that leaves and aerial roots gradually lose their bright saturated color. An excess will also not benefit the plant.
With an excess or lack of light, the leaves become:
- acquire a yellow color;
- die off.
Sunburn can remain on the leaves, which leads to their death. Defining sunburn is simple:
- a yellow spot appeared on the leaf plate;
- the affected area becomes dry;
- the burn becomes brown over time.
Reference! The vast majority of hybrids do not tolerate sunlight well.
Orchid feeding should be treated very carefully. Even small violations of the rules for fertilization can lead to the plant losing its decorative qualities.
Florists make the following mistakes:
- lack of fertilizer;
- excess feeding;
- application of fertilizers that are not suitable for this variety.
Lack of feeding is not too dangerous for the orchid, but it can still lead to the plant losing its beauty. You can determine the lack of nutrients by the appearance of yellow spots on old leaves. Young growth draws out all the nutrients, and the plant loses old foliage. Yellowing begins from the top of the plate, gradually sinking until it touches the stem.
An overabundance of feeding is typical for flowers from the store. To give them beauty, sellers apply a lot of fertilizers and growth stimulants to the soil. After the purchase, the new owner also seeks to feed the new flower. Signs of an oversupply of fertilizer begin to appear approximately 6-8 months after purchase.
orchid turning yellow due Diseases and pests
The orchid is characterized by fungal infections that cause root rot. As a result, the ground part of the flower also suffers from lack of nutrition. Excessive watering can provoke the development of infections.
Orchids are often infested with pests. The most common parasites are the whitefly and root mite. When infested by insects, the ground part receives insufficient nutrition. As a result, the normal color disappears and a yellow tint appears.
Whitefly damage can be identified by several characteristic features:
- a white bloom appears on the surface of the flower, resembling powdered sugar in appearance;
- the ground part becomes lethargic and lifeless;
- yellow spots appear.
The appearance of a tick is accompanied by leaf fall. This is due to damage to the root system of the plant.
What causes the trunk and stems to fade?
The wilting of the stem of a plant can be a serious symptom. Often this is followed by the death of the flower. The trunk can wilt for several reasons:
- dying off of the point of growth;
- natural process.
Sooner or later, the flower will begin to wither and wither from old age. This is a natural process that cannot be stopped. If the growth point is changed, the culture cannot be saved either.
When an orchid is moved from the usual store environment to an apartment, the process of wilting is explained by the stress it has suffered. To get rid of its consequences, it is enough to provide the flower with peace and acceptable conditions (for the entire period of adaptation).
Read also Care Of Orchid Leaves.
why do orchid roots yellowing and wilting?
Sometimes, in the presence of a healthy-looking ground part, the roots of the orchid begin to disappear. Sooner or later, this will deprive the flower of the ability to receive nutrients, and it will die.
In order to provide the necessary assistance in a timely manner, it is important to correctly determine the causes of this phenomenon:
- overflow – leads to decay of the roots;
- root mites and other insects also damage the roots of the plant;
- a pot of the wrong size;
- fungal and viral infections.
Why do yellowed leaves fall?
The yellowed leaf should fall off. All-natural metabolic processes stop in it, and it naturally dies. This will happen regardless of the cause of the yellowing.
Falling leaves are typical for such problems:
- transferred stress;
- aging plants;
- root damage;
- overflow or drying out.
Reference! The only exception to the rule is sunburn. In this case, the entire leaf does not die: it is enough to remove the affected area, and the healthy plate will continue to exist.
Complete guide on indoor orchid care.
Orchid unopened bud began to dry and yellow
Orchid owners often observe the drying of unblown buds. As in the case of yellowing of the leaves, this is caused by a violation of the conditions of detention. The buds dry out:
- low or high room temperature;
- lack of sunlight;
- violation of the irrigation regime;
- lack of nutrition.
To get rid of the problem, it is enough to eliminate the negatively influencing factor. The flower pot is moved to a more suitable place, additional lighting is provided and the method of watering is redefined.
Reference! Sometimes changing root watering to irrigation through drainage holes helps. In this version, the flower will absorb as much moisture as it needs.
How to save blooming Phalaenopsis from yellowing?
If the plant begins to disappear during flowering, most likely it will not be possible to save the peduncles. Keeping the entire plant, they are pruned first. This relieves the orchid of the need to provide nutrients to the flower, helping to focus on rebuilding the ground portion.
To save Phalaenopsis, you need to do the following:
- Examine the plant and determine the cause of wilting.
- Remove peduncles.
- Carry out parasite treatment (if necessary).
- Treat with root preparation (if damaged).
- Provide the flower with suitable conditions for keeping.
why Orchid new growth leaves turning yellow?
Yellowing after transplanting may indicate root rot. In addition, the leaves may turn yellow if the adaptation period is not maintained after the purchase of the flower. A transplant immediately after purchase is double stress.
If, after transplanting, yellow leaves appeared and the plant began to wither, it should be urgently reanimated:
- Take the flower out of the ground.
- Examine the roots.
- Remove all damaged areas.
- Immerse in water for a couple of hours so that the root system is saturated with moisture.
- Place the plant in a mini greenhouse.
Read out Do You Cut Off Dead Orchid Stems?
why do Orchid stem Turning Yellow?
If a barely noticeable yellowness appears on the stem, you can try to correct the situation. To do this, it is worth analyzing: whether the conditions for keeping the flower meet the established standards. Sometimes you can slow down or stop the yellowing process of the stem by moving the orchid to a more suitable place and adjusting the watering regime.
If the process has already gone too far, it is better to remove the stem. This will help preserve the rest of the plant. The stem is removed in the following cases:
- the orchid is weakened by disease and is unable to nourish the flower;
- the plant needs a rest period to recover from stress;
- the stem is completely dry.
Reference! When the peduncle dries out from below, it is better to remove it immediately. This condition can be dangerous for the orchid.
Why does an orchid need special care?
Phalaenopsis feels great in the humid and warm climate of the tropics. It is quite difficult for him to survive in our regions. This is due to several negative factors inherent in city apartments:
- dry air;
- not enough sun;
- short daylight hours in winter;
- temperature difference.
It takes a lot of work to achieve an attractive appearance and regular flowering of orchids. Hybrid varieties are called especially capricious. If the conditions of detention are violated, the flowers can hurt, lose their decorative effect and even die.