Besides dry air, there are some other reasons why plants can develop brown tips and leaf margins. Some plants are sensitive to the fluoride and chlorine in tap water. Spider plants, Ti plants, and Spathiphyllum are most commonly effected by fluoride, developing brown leaf tips as a result. Excess salts from fertilizer and water can also cause leaf tips to go brown. Occasionally, accumulated salts need to be leached out of the soil. To do this, apply large amounts of water repeatedly, to dissolve the salts and wash them out the bottom of the pot.
the colophyl goes out and makes the leaves turn brown its like a factory that shuts down.
Those areas represent a lack of photosynthesis as the brown or reddish pigments are being reflected because of a lack of chlorophyll in the plants chloroplasts.
This is usually caused by dryness, specially in the air around the plant.
On a otherwise healthy plant this is a sign of stress caused by any or all of many things, underwatering, overwatering, sitting in in a draught or even a whiff of gas.
Either old age or dry atmosphere.
The yellow leaves will turn in to green gradually when the plant is put back in the sun.
Bugs are wiping their asses on them
the first 2? if so its ok.
Nitrogen" " is taken in as nitrates and is needed to form proteins and chlorophyll. Without nitrogen the plant's leaves turn yellow and the plant shows poor growth.Andrew Campbellandrewcampbell@gmail.com
It may just be nutrient-deficient; you can try fertilizing it to see if the new growth is a healthy green color. (The already-yellow leaves will not turn green again.)
Because when the Chlorophyll molecules - that gives leaves their Green color - disintegrate they can't make the plant Green anymore - Yellow is the next color to appear and in turn vanish to make way for the Red colors.
on of the most common reasons why leaves fall off yucca plants is due to over watering
52% of leaves turn yellow yes this may be true but you need to state your reference!!
Most of them
When the flower is dead, cut it off unless you are hybridizing. Let the leaves alone till they turn yellow and brown. Other than that, no pruning is needed.
it means that your using tap water and its bad for ur plant use distilled water
Tobacco leaves