Alocasia is a lush beauty of a houseplant , prized for its showy stingray - comparable leaves . Alocasias are generally trouble - free plants , but they are not immune to common problem .
If your alocasia leave are change state brown , I ’ll avail you dig into the cause and show you how to get your plant life back to robust health .
The most common culprit for alocasia turn chocolate-brown is leaf scorch . This may be due to tan , fertilizer burn , root rot , or overwatering . Other common drive of alocasia brown leaves include disease , gadfly infestation , low humidness , nutritionary deficiency , and poor air circulation .
I ’ll plunge into each of these issues to calculate out the underlying causal agency of browning in your alocasia works . You ’ll learn how to prepare each problem , as well .
Contents
Causes of Alocasia Turning Brown
When healthy , alocasia boast large , dramatic drear - immature leaves with zebra - like veining . They ’re aboriginal to tropic and semitropical region of Asia - Pacific . Think the Philippines , so they are happier in humid climates .
BUT you may not be able to transform your home into a tropic haven . And that ’s when problem creep in . One common consequence is brown on alocasia leaves .
Could the perpetrator be a disease ? Poor lachrymation habits ? Or , perhaps photograph to uttermost temperature changes ?
First things first , do n’t panic . you may identify the problem by inspecting your elephant ear . Look ahead for how to remediate each potential cause .
Overwatering
Alocasia loves to dry out out a bit but is not completed before the next watering . In fact , it thrives in moist soils , but overwatering is a big no . H2O - log grease is a formula for root rot , in particular if the potting mix is poorly drained .
Root molder hinders the healthy absorption of oxygen . Sickly root , in go , impress other function , include the leaves which then turn chocolate-brown .
Look for the following hints that overwatering may be the movement of alocasia browning :
You must treat the fungal infection right away , as it propagate quickly . I ’ve used the follow steps to successfully treat elephant ear browning due to overwatering :
Diseases
Brown leaves on alocasia could be revelatory of a bacterial , parasitical , or fungal disease . Bacterial leaf spots are typically few yet tumid with a wet appearance .
Fungal diseases often start as small brown slur . If left untreated , they ’ll blossom progressively and bleed into each other . You ’ll then slip them for a large blotch .
Keep an optic out for the following disease that cause alocasia leaves to sour brown :
plow promptly to ameliorate chances of survival . The unspoiled treatment will vary count on the actual disease . Generally , you should :
Rust Spots on Alocasia Leaves
Rust spots are a fungous infection that invaded alocasia and a superfluity of other indoor plants . It ’s especially encroaching in tender , humid conditions . wretched light can also be responsible .
Early on , rust blot are small dark-brown or red rust - like spots on the leaf ’ underside . They can be orangish . A sudden spell of warmth can fuel rapid expansion . The spots will become into expectant , ragged pustule .
If left untreated , the chocolate-brown leafage will drip in . Although rarely more than a ornamental issue , the leaves may finally wilt and die .
rusting place on alocasia leaves thrive in a affectionate , dampish environment . So , you should :
Oedema
elephant ear are happy in wet soils , but there can be too much of a full thing . Overwatered alocasia plants sometimes take in too much body of water . The cells will become too engorged with weewee that they bust .
It ’s often manifested as washy blister or hump on the underside of the leaves . The blisters will finally dry out out and leave tan or brown corked spots . Other signs of hydrops include drooping , lifeless , or shriveled leave .
Oedema is n’t an contagion or disease . That ’s why the best track of military action is to zero in on the case and rectify it accordingly . I ’ve recover the following manoeuvre to help come to hydrops - bear on elephant ear :
Pest Infestation
Pest infestation is another leading culprit for foliage browning in alocasia . louse like mealybugs can be particularly invasive . They can do severe damage to the leaves and leave a raft of browning areas on the leave .
Note that mealy bug and other pests in the family attack everything , from roots to stems and leaf . However , other insects focus on leaves . These include aphid , leafhoppers , scales , wanderer mite , and true hemipteran .
In that pillowcase , their bites will leave stripling and damage symptoms on parting . leave may also turn brown along the veins and edges .
Use the following method to fix a pest infestation :
Sunburn
Alocasia does well in a medium to bright indirect light . Exposure to exuberant rut , direct sunshine , or gamey temperature can do tissue terms . The damaged areas often transform into brown blisters .
Also , burn can develop if you look sharp your elephant’s ear from a dark area to a brightly unhorse spot . undue sunlight can also trigger an influx of destructive free radical . If the situation is not correct , they ’ll have leaves to come out scorched , discolourise , and then brown .
Drooping , curling , or crease in the folio is also a telltale foretoken of sunburns . away from the browning of leafage tips , you acknowledge some foliage yellowing and paling .
Low Light
Alocasia plant are the happy in well - lit places like windowpane sills with east - facing exposure . They love mid to bright collateral sunlight . That ’s because the plant is finicky about blue visible light .
Weak artificial lighting , dark rooms , or badly - lit blank space will not sustain healthy growth . Low light source does n’t make browning of alocasia leaves like a shot .
The slow growth increase the jeopardy for beginning rot , nutrient deficiency , overwatering , and edema . Therefore , these problems will stimulate the leave to wrick brown .
Temperature Stress
Alocasia plants are build to wave in temperature ranging between 60ºF ( 15ºC ) and 82ºF ( 28ºC ) . However , you need to maintain temperature in the middle of this range .
Alocasias are peculiarly vulnerable to temperature stresses , both dusty and hot drafts . They not only take aback your plant but may also make tissue damage . The consequence is n’t pretty : brown color , curls , and dropping leaves .
Other signs of temperature emphasis on alocasia include :
Humidity
Alocasia is a sub - tropical and tropic flora . In layman ’s terms , it ’s built to expand in warm , humid conditions . If the humidity is too depleted , the plant will dry out , and discolor areas will appear on the leaf .
In fact , browned tips and along veins are a surefire sign of low humidness . This is mostly unfeigned during winter when there ’s too piddling wet in the nipping breeze . get a convection heating arrangement can exasperate the office .
Too much humidness can have the same adverse issue . It create a conducive environs for fungal disease , oedema , and root rot . All of these may leave in folio browning .
Frost Damage
If your alocasia leaves have turn brownish or yellow , frostbite could be the perpetrator . Again , this is a tropical plant that favor fond conditions . In fact , it does particularly well in the mid - temperature range between 60ºF ( 15ºC ) and 82ºF ( 28ºC ) .
elephant’s ear do n’t tolerate frostbites . When temperatures souse below 55ºF ( 13ºC ) , the cell will hole up and eventually denature if they drop even downcast . Frostbites also blow out of the water the plant life and induce cell / tissue damage . In the close , the equipment casualty will appear as jumpy dark-brown spots .
Lack of Nutrition
Ideally , elephant’s ear should be fecundate once monthly from other outpouring through former summertime . Depending on where you live , you could fertilize deeply into spill . If you do n’t , leaves will turn over because of a lack of victuals .
The most commonly lacking nutrients are nitrogen , iron , zinc , and Mg . In all four case , the parting can move around anywhere from yellow to brown / Shirley Temple . Other signs of a want of alimentation admit stunted growth , necrosis , mottling , and greensickness .
Fertilizer Problem
Browning elephant’s ear leave can be a sign of the accumulation of fertilizer salts . This chemical substance buildup can result from the consumption of dampen ( tap ) water or excessive fecundation over time . If you do n’t add enough water , this will become even worse .
That ’s one rationality it ’s a upright theme to repot with fresh ground every couple of years . Softened piddle can also turn the folio tips brown , so view using distilled or filtered water to keep your plants glad .
Underwatering
More often than not , browning elephant ear leave are an indication of underwatering . It needs a consistent supply of moisture to flourish . If left dry for long , underwatered alocasia will shrivel up , decrease over , wrinkle in leaf , and die .
The surefire way of life to know if underwatering is the cause is to tick off the potting mix . If it ’s too dry ( 2 - 4 ” of surface soil ) , the plant is emphatically exsiccate .
How to Prevent Browning of Alocasia Leaves?
Knowing potential culprits for browning in alocasia is half the conflict . The next half is doing what it takes to keep them at bay laurel .
Watering Problems
Fertilizer Problems
Frostbites
Last Words
The most coarse causes of embrown in alocasia are disease , rust spots , overwatering , fertilization burn , and low humidity . you could resurrect your plant by remedying the emergence .
Good aeration , proper lacrimation habits , optimal temperature , bright / indirect light , and ideal humidness should keep most of these predicament .
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