Cacti can change color from yellow to brown. This process, known as corking, is most frequently caused by aging. When a cactus reaches maturity, corking occurs spontaneously.
It starts at the plant’s base where the soil is in contact and might gently progress upward or remain stationary. The plant looks woody after corking. The plant is solid to the touch and generally healthy.
You have a distinct problem if the plant becomes brown and feels mushy or soft to the touch. This typically indicates either rotting, sickness, or both. Rot can develop at the roots of a cactus that has been exposed to constant moisture and progress up the plant.
A cactus can also turn brown from diseases like fungus or from pest infestation. The browning frequently affects various plant components, and when touched, it will feel soft and mushy rather than hard.
How can a Browning cactus be kept alive?
Look to check if the brown spot and the vicinity are mushy and soft. If so, your cactus has probably started to rot from the inside out and is now displaying symptoms on the outside.
After noticing soft brown areas, the best technique to fix your cactus is to cut off healthy stems (without any signs of rot) and start a new plant.
Before cutting, disinfect a razor blade or a pair of extremely sharp sheers. Cut the cactus above the area of rot, allow it to dry, callus over, and then plant it again.
Use fresh soil, and thoroughly clean and dry the pot if you’re using the same one. Unfortunately, there isn’t much you can do to save your cactus as is once it has begun to decay.
In other words, the only method to revive a cactus that has developed rot is to cut off the healthy stems—those portions of the plant that are still green—and repot them in fresh soil.
Can you revive a dead brown cactus?
Overwatering is the cause of cactus rot. The cactus doesn’t require as much maintenance, despite owners’ perceptions that plants should be cared for frequently. The majority of cacti that unintentionally overwater and finally die are brown and black in color.
LET THEM GET DRY
The cactus is a plant that has to dry out as part of its life cycle, unlike most plants that become ill if they aren’t irrigated frequently. Cactus roots naturally receive very little water, therefore if you give them the same amount of water as you give your tomatoes, they will rot.
WATCH FOR MUSHY SECTIONS & DISCOLORATION
It’s crucial to keep an eye out for signs that your cactus is becoming mushy or is beginning to turn brown or black. These indicate overwatering has taken place. Most likely, the roots have already decayed and died. Simply put, avoid overwatering. Keep an eye on the soil around your cactus plants, and only water when the soil is absolutely dry. Although it may seem careless, the cactus is accustomed to that atmosphere in its natural habitat.
WHAT TO DO IF YOU’VE FOUND CACTUS ROT
It is time to trim them off with a sharp knife and repot or replant your cactus. Make sure to combine garden soil (2 parts), coarse sand (2 parts), and peat soil (3 parts) well (1 part). Additionally, make sure the pot you purchase has sufficient drainage holes and is somewhat larger. If you’re growing cacti outside, make sure the soil is well-draining and contains enough sand to aid this effect.
Must I remove the brown cactus?
Knowing some of the reasons why cactus trimming is necessary, you now need to know when to carry it out. The top five indications that it’s time to prune your plant are covered in this section.
The plant has become too large
There are a few exceptions to the rule that most cacti species grow slowly and seldom reach destructive heights. When the correct conditions are present, members of the family of jungle cacti can grow too quickly.
As a result, if you want your plant to be asymmetrical but it is getting too big or one side is growing significantly quicker than the other, you may want to prune it back.
Normally, if you are pruning a plant to make it smaller, you should think about trimming the plant back by at least a third every year. A plant with regular trimming will eventually become slightly bushier and have more areas for blossoms to grow.
It’s a little simpler to maintain smaller plants because you may put them anyplace in your home. They can fit on your window sills without taking up too much of the small interior area.
Pest infestation
Some pests can still get to your plant even if the majority of cacti species have sharp spines that keep them away. Cactus bugs, mealy bugs, spider mites, cactus longhorn beetles, scale insects, and other common pests may attack your cactus.
Some of these insects reproduce quickly, and the results can be disastrous if you don’t move quickly to stop them. While the majority of them target the stems, some may also target the roots.
You must take the necessary steps to stop pest infestations as soon as you see them on your cactus. You may easily eliminate huge bugs by hand if they are an issue. You might have to hire a professional pest exterminator if they are little, like spider mites.
The bad news is that some bugs that affect cactus are so resilient and chemically resistant that not even the most seasoned pest exterminator can eradicate them. Pruning the damaged area is the sole option if you have tried hiring an exterminator but have not seen any effects.
Determine the area of the stem that was bugged, then carefully prune it back. To prevent re-infestation, be sure to prune the entire stem that is afflicted.
Top-bottom rotting
You must act quickly to address the frequent cactus problem of rotting if you want to keep your plant. Rotting may begin at the base (roots) and progress to the stem. It may also begin at the top and descend.
You may be dealing with tip rot, often referred to as cactus stem rot, if the tip of your cactus begins to turn brown and squishy. If you don’t move quickly to save the plant, your cactus will eventually die since once it begins to rot from the top, it won’t stop.
A fungus and pest infestation, as well as water infiltrating through an open wound on the plant, are the main causes of stem rot. Your cactus may be prone to stem rot if it has sustained any kind of harm.
The most crucial action you must take to save the remainder of the plant is to prune or cut down all compromised stem parts as soon as you see stem rot symptoms on your plant. If the rot isn’t removed by pruning, it will eventually kill your plant if you don’t.
Remember that rot spreads quickly, so there might not be much time left to preserve the cactus. To prune the stem’s impacted areas, use pruning shears or a sharp knife.
The appearance of dead stalks after blooming season
Another indication that you need to prune your cactus is the presence of dead flower stalks soon after the flowering season. This is especially true of the profusely flowering Christmas cacti.
To prevent losing the priceless blooms, don’t prune before the flowering season. But when the flowering season is done, you might see that the flower stems that are still there look unsightly. To give your cactus a fresh look, take your time and carefully prune them back.
In addition to getting rid of the dead stalks, pruning your cactus after the flowering period will also make it bushier, which will inevitably result in the formation of additional blooms the following year. Make sure to remove all of the diseased branches and dead stalks.
Cactus is getting too tall for its pot
When you notice that your cactus plant is growing too tall for its pot, you should also take pruning into consideration. Every two to three years is the ideal time to repot your cactus, although this is not always the case.
As a result, if you see that your plant is growing too tall for its container, you should think about cutting it to prevent it from falling over. Plants cultivated in light plastic containers typically develop into taller, more slender plants. The plant can grow thicker and healthier if its height is appropriately reduced.
What does a cactus that is overwatered look like?
The obvious indicators of an overwatered cactus caused by a fungus in the soil include black or brown blotches and mushy stems. It’s time to carefully chop them off with a knife if you experience any of these bodily symptoms. Use a sterilized knife while handling a rotting plant to prevent the spread of the infection.
You will have to exert more effort if the damage is severe. Essentially, what you’ll be doing is multiplying the portions of your plant that are still alive. Wear nitrile gloves to protect your hands from the cactus’ spines while you chop off the rotting sections, and exercise extreme caution when handling the plant. After cutting out the damaged areas, let your cuttings air dry for a few days, or around a week.
Why is the top of my cactus brown?
Cactus tip rot, which is evident when the top of the plant begins to become dark and mushy, is most likely the cause (aka cactus stem rot).
That basically signifies that your cactus is starting to rot. If nothing is done, cactus stem rot will quickly become a serious problem.
A cactus will continue to deteriorate from the top down once it begins. The plant will finally perish as it continues to spread down the entire stem.
Therefore, it’s critical to take quick action as soon as you see cactus tip rot in order to save the plant.
How can you spot a dying cactus?
When a cactus looks shriveled and husk-like, it is dead. Additionally, dead cacti can become unstable in their soil and topple over. They could start to smell rancid and becoming mushy, both of which are indicators that they are rotting. Cacti that are dead lose their spines and frequently appear brown.
How frequently do cacti need to be watered?
The most frequent reason for cacti failure is improper watering, whether it is done too much or too little. Cacti have evolved to store water for extended periods of time and can maintain moisture through droughts because they are endemic to arid regions and dry temperatures. They have a limited capacity, which is why over-watering can result in a variety of issues.
When it comes to regularity, watering your cacti will largely depend on the season but also on the variety. Checking the soil is the easiest technique to determine whether your cactus needs water: It’s time for a drink if the top inch is dry. That entails applying the “soak and dry procedure” on cactus.
What is the soak and dry method?
The soak and dry technique is thoroughly wetting the soil until part of it begins to flow out the drainage hole, then waiting until the mixture is nearly dry before wetting it once more. If done properly, this strategy will help them endure a period of under-watering should you need to travel or leave the house because it takes use of their natural tendency to store water (or if you just get busy and watering falls to the wayside, as happens to all of us now and again).
Watering during the growing season versus the inactive season
Like with many houseplants, the season affects how frequently you need water. It becomes more crucial that you get in the habit of examining the soil to determine whether your cacti are thirsty. A healthy cactus needs watering every one to two weeks during the growing season, according to general wisdom. The frequency changes to once every three to four weeks during the off-season.
Even then, it’s crucial to examine the soil. The same way that not all interior spaces and not all cacti are alike. The only way to be certain that your cactus require watering is to carefully examine the soil to determine how dry it is because there are so many different factors.
How can you determine if a cactus has been overwatered or not?
The cactus won’t typically seem radically different from day to day because underwatering typically happens gradually over time.
There are a few indicators, nevertheless, that will let you know if your cactus is submerged.
Signs of an Underwatered Cactus
Knowing the warning signals of an underwatered cactus is crucial for prompt response. Your cactus will have a better chance of recovering if you do this.
The most typical warning indicators of a submerged cactus include:
The Cactus Is Light Green or Yellowish
Since this normally happens gradually over time, the color change might not be apparent right away.
If your cactus begin to become light green or yellowish, keep an eye out for more symptoms of an underwatered plant.
The Spines Are Falling off Easily
A well-watered cactus has roots that go far into the ground and take in water there.
Their root systems do not, however, work correctly while they are underwater because the dearth of nutrients in the soil leads them to wither away.
As a result, the spines become fragile and easily detach.
another typical indicator of a submerged cactus
The Cactus Is Wilting
Due to nutrient deficiency, their spines cannot support the plant adequately, which causes them to lose their shape.
As a result, plants that were formerly upright and in good shape gradually start to sag or droop.
Decay at the Base of the Plant
Roots will cease developing and begin to deteriorate over time if they are unable to absorb enough nutrients from the soil as a result of a lack of water, which will eventually result in decay at the base of the plant.
It’s possible that you won’t immediately notice whether or not your cacti are underwater because this normally happens gradually.
The New Growth on Your Cacti Is Weak and off Center With Older Growth
Lack of nutrients will have an impact on how a cactus develops new limbs.
In this instance, you’ll see that the younger growth is somewhat deformed and less symmetrical than the older ones-another indication that the cactus has been submerged.