Once leaf scorch has occurred, there is no cure. The dehydrated portions of the leaf will not turn green again, but with proper water management, the plant may recover. Prevention of scorch needs to begin with winter watering.
Once your houseplant has burned leaf margins or tips, there is no good way to reverse the damage at the injured location. The only useful thing is to solve the underlying issue and hope your plant resumes its healthy growth.
Occasionally, leaf scorch is caused by a bacterial disease that can result in permanent damage or death to your tree.
Once leaf tissue is scorched, the damaged areas will not recover; however, minor damage, while unsightly, will not kill the plant. Leaves with scorched margins may look unappealing, but they still help the plant with photosynthesis, creating food for new, undamaged leaves to emerge.
You will want to trim the dead or scorched foliage after properly watering. Your plant is expending energy on attempting to keep the burnt parts alive. Clip these areas off so that the energy it produces will go to the areas of the plant that are still healthy.
It can take anywhere from a couple of days to a couple of months for stressed plants to recover. Recovery time depends on the amount of damage that the heat caused to the plant. If a stressed plant is completely neglected during a heatwave, it can take several months or even be impossible to revive it.
Potted plants that are completely dried out and crispy could either just have gotten fried by the sun's intensity or have potentially been overwatered. Sun-scorched plants can be cut back and fertilized and should recover with time (planting in the ground would be even better!).
If a small part of the leaf is burned, but the plant is still getting water and functioning, it's best to just let it be. In more severe cases where the leaves are completely brown and dry, it is best to remove them before disease takes over the rest of the plant.
Browning of leaf margins and/or yellowing or darkening of the areas between the main leaf veins are symptoms of leaf scorch. Due to environmental causes, leaves may dry, turn brown, and become brittle. Look for damage to trees and shrubs on the upper portion on the sunny, southern side, and on the windy side.
Some plants died and others were fried by the record-breaking temperatures. Even some that look extremely bad, like rhododendrons and hydrangeas, can bounce back. Burned leaves don't necessarily equal a dead plant, so patience and observation is needed.
Stunted slow growth with yellowing leaves is a symptom of over-watering. Plants may suffer from leaf scorch or leaf burn. Water-soaked spots and blisters (Oedema) may appear on stems and leaves. The crown of the plant may rot.
The brown leaf tips will not turn back to green but you can trim the brown edges to get the plant back to looking healthy.
Bacterial leaf scorch is a chronic, eventually fatal disease that is most noticeable in the early fall. Symptoms include premature leaf browning, marginal necrosis (FIGURE 1) and defoliation.
Answer: Brown leaf tips or edges can happen on any indoor plant but are common on some species like spider plant and dracaena. Trimming the brown portions off the leaves with a scissors can improve appearance, but new browning will occur if the root cause is not addressed.
Sun sensitive plants need immediate shade after overexposure to the sun. If the plants are potted, then move them to a covered porch or indoors. If the plants are in the ground, then cover them with a fabric sun screen that is rated for landscaping. Watch the plants over the next few days to see how well they respond.
Scorch damage alone is insufficient to kill an otherwise healthy plant. Proper treatment depends upon the reason for scorch symptoms; however, good cultural practices that improve general plant health and promote good root growth will reduce the chances of leaf scorch.
You might lose some of the growth you have, but the roots should survive. Watering them and moving them out of direct sunlight is about all you can do. Now they just have to recover.
Improper Fertilization
If you've recently fertilized your plant, this could be the culprit. Too much fertilizer or adding fertilizer to dry soil can burn the plant and cause crispy brown edges. Be sure to dilute any fertilizer in water and make sure that the soil is damp before fertilizing.
Once leaf scorch has occurred, there is no cure. The dehydrated portions of the leaf will not turn green again, but with proper water management, the plant may recover. Prevention of scorch needs to begin with winter watering.
Once the damage has happened, it's OK to remove the affected leaves, which should mostly be on the outside of the plant.
The specifics can differ between protected indoor plants and plants exposed outdoors, but brown tips happen for the same basic reasons in both. As sad as it is, brown tips are dead tips. You can't revive dead leaf cells, but you can make corrections and save the rest of your plant.
MANAGEMENT Leaf scorch is irreversible; however, proper water management may help the plant recover. To prevent scorch, water more deeply and less often to ensure that the water is deeply penetrating the soil, for deep root development.
Keep them in a shady spot to give them a chance to recover: even plants that look terminally crispy can often revive and re-sprout with this treatment. Larger pots should be heavily watered, then allowed to drain – one deep watering is better than daily sprinkles.
Since the leaves won't heal and return to their normal color, your best option is to cut off the damaged leaves and move the plant back to a spot with no direct sun.