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When you see leaves of your plant curling – whether upwards or downwards, your plants are trying to tell you something! The first thing that should come in your mind is: the PLANT IS IN STRESS. Stress is more commonly seen in younger plants than the more established or mature plants.
Now, let’s look into different patterns of leaf curls with scientific concepts and reasons for each of these and solutions or remedies to be applied to treat the problem of leaf curl.
The main nutritional causes of leaf curling are Magnesium and Manganese Deficiency.
Magnesium Deficiency Curling shows on the middle to older leaves with patching yellowing as well. But the leaf veins stay green (inter-veinal chlorosis).
Manganese deficiency curling first starts showing at younger leaves. So this is how you differentiate between the two.
So, the first thing you need to do to support this diagnosis of nutritional cause of leaf curling is a Soil PH Test. Too much alkaline soil will inhibit the absorption of these micro nutrients by the roots. Simply adding micro nutrient powder will not help. First test the PH and correct the PH. You can make it Acidic by adding Alum or Vinegar.
Then, You can also Foliar Spray with Epsom salt solution if magnesium deficiency is suspected.
]]>When you see leaves of your plant turning yellow or burning or browning at it tips or edges, it’s time to investigate and find out the possible cause and solution to it. You must be aware of these problems to keep your plants stress free and healthy! The First broad diagnosis that should come to your mind is – YOUR PLANT IS IN STRESS and then you further start investigating and finding out the exact reason for this problem. We will start listing the top 10 reasons for this problem in descending order.
10. Natural aging of the plant: This is one obvious reason for yellow leaves. If you see older leaves especially at the bottom of the plant turning yellow, just ignore it. This is not a reason to worry.
9. Pest Attacks: Sucking pests like aphids, mealybugs, whiteflies, thrips and mites can damage the leaves and can cause yellowing of leaves. You know Prevention is better than cure. These can be easily prevented or even treated organically using Neem oil spray regularly for treatment as well as prevention. Spray neem oil once every 15 days as a preventive measure and weekly once or even twice for treatment of these pests. You can check my detailed post on NEEM OIL.
8. Root bound plants: “Root bound” plant means that the roots of a plant have completely taken up the space within the pot, often circling and creating a dense web of roots. This can stress the plant and deprive it of nutrients, air, and water and this can result in leaf yellowing and stunted growth of the plant. Just repot the plant in a larger container or carefully perform root pruning if you wish to use the same container.
7. Transplant Shock: This is another reason for leaf yellowing and leaf drop. This is the period of stress to the plant when you just repot a plant. You can solve this to a certain extent by repotting your plant carefully and after repotting for the next one week keep the plant in shade away from direct sunlight. Water the plant once thoroughly with Epsom salt solution to counter this transplant shock. 5 to 10 gms of Epsom salt per litre of water is the recommended dosage. You can watch my detailed video on the 10 golden rules of Repotting a plant.
6. Fertilizer Overuse: If you observe a strange pattern to yellowing of leaves, like if the veins on the leaves are green and the tissue is getting yellow or the edges or tips are yellow or looking like burnt along with bud drop off or fruit drop off, then it is mostly due to fertilizer misuse.
Commonly overuse of fertilizers is the problem, so it is important to use fertilizer at the recommended dosage. This problem is more common with the use of chemical fertilizers like Urea, DAP or NPK granules and not a problem with organic fertilizers.
And moreover, people tend to use too much fertilizer on their plants to make them grow faster, especially newbie gardeners. But what it actually does is, it creates a toxic effect on the plant which “burns” the leaves and turns them yellow.
5. High Soil PH – that is too alkaline soil: This can also be one of the reasons for leaves turning yellow. This is little difficult to diagnose unless you have a soil ph testing gadget. This simple ph testing gadget will give you a rough idea about the soil PH whether acidic or alkaline soil. Most plants need a slightly acidic ph of around 6.5 for best absorption of nutrients.
4. Temperature: Leaves start turning yellow when it is either too hot or too cold. In terms of the cold temperatures, like for example adenium plants, the leaves start yellowing in winter and eventually fall off and the plant goes into the dormant state in winter. That’s called Winter Dormancy and applies to many other plants as well.
3. Sunlight: Reduced exposure to light is another common reason for plant leaves to turn yellow because not enough light is reaching the plant for photosynthesis. Similarly, Too much exposure to hot direct sun is another common reason for tips and edges of leaves to turn dry and brown. This can be corrected easily by knowing your plant by its name or atleast whether it’s a sun loving plant or a shade loving plant. Knowing a plant by its name is very important to learn about its care tips especially its light requirement and provide optimum exposure to sunlight. A simple free app to know a plant id is google lens app provided by google. You can watch my detailed episode on GOOGLE LENS.
2. Improper Watering: We will discuss this in detail, please watch carefully to understand the concepts. Improper watering can present as either leaf yellowing or leaf drying or leaf burning at tips and edges. The most common reason that plants’ leaves turn yellow is because of moisture stress, which can be from either over watering or under watering. Similarly, the most common cause for brown leaf tips or brown edges on leaves is the plant not getting enough water, I repeat, the plant NOT GETTING ENOUGH WATER which can be due to several reasons apart from you not watering the plant adequately.
One Simple Common sense Hint here for watering is: Generally, Indoor plants are more prone to over watering and outdoor plants are more prone to under watering.
Before we start displaying the various leaf patterns, you must understand some basics in order to diagnose this problem of nutrient deficiencies in plants and start the right treatment to save your plants. Because directly jumping in to adding too many supplements can burn or kill your plant.
Plant nutrients fall into 2 categories: macronutrients and micronutrients. Macronutrients are those elements that are needed in relatively large amounts. They include the three major ones – nitrogen, phosphorous, potassium, that’s NPK and also sulfur, calcium and magnesium. Micronutrients are those elements that plants need in very small amounts, like iron, boron, manganese, zinc, copper and molybdenum.
Most of the times, except in container gardening, these nutrients may be present in the soil. So before adding supplements you have to diagnose your condition by checking these 3 problems or factors:
Now having said that, let’s jump
into identifying the various leaf patterns of discoloration and distortion and
diagnose this problem. But always Keep in mind that each plant variety is
different and may display different symptoms. And also the damaged leaves may not come back
to normal after treatment but the new leaves will certainly come out healthy
and lush after treatment.
Let’s start with:
Now the Universal Treatment Solutions for all these problems:
You have two options: First one is Making The Universal Cocktail Fertilizer mixture.
And the Second option is Vermicompost – which is rich is almost all micronutrients. Adding a handful every 15 days will keep your plants healthy and high yielding.
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