Cacti enthusiasts are already aware that these desert plants can withstand the most extreme weather conditions. This does not imply that they are safe from illness, pest, or animal attacks. Cactus may tolerate some neglect, but it requires adequate care to be strong and flourish. A healthy cactus indicates strong chances and promise for future reproduction.
So how do I determine the health of my cactus? The physical characteristics of a cactus will show whether it is healthy. A healthy cactus has a robust, succulent stem, upright leaves, an equally green appearance, and strong roots, to name a few. A healthy cactus will be able to store a sizable amount of water without showing any indications of deterioration and will consistently produce brightly coloured flowers during each flowering season.
The traits that distinguish a healthy cactus will be examined in this article. It will go over how to maintain the plant’s health and how to recognise any symptoms of ill health.
How can you determine the health of your cactus?
You must be aware of the fundamental indications of a balanced plant if you want to recognise a healthy cactus.
Although cactus plants can grow in a variety of ways, there are certain common signs to check for to see if your cactus is in good condition.
The Cactus Has a Healthy, Green Color
It could not be healthy if the cactus is paler than usual or has brown areas.
It is frequently an indication that they are not receiving enough light or water when cactus start to lose their colour.
The Cactus Is Growing New Spines
The cactus will produce new spines if it is healthy. This is an indication of the plant’s health and growth.
The absence of new spines or the loss of existing ones on the cactus could indicate a problem with the plant.
The Cactus Has a Healthy Root System
Brown or mushy roots could indicate that the cactus has received too much water.
It may indicate that the cactus is waterlogged if the roots are dry and brittle.
The Cactus Has Firm, Intact Skin
The cactus may not be receiving enough water if the skin is damaged or peeling.
Additionally, keep an eye out for diseases and pests. Any of these issues indicate that the cactus is unwell and needs to be handled.
The Cactus Is Producing Flowers
When cacti are in good health, they can blossom. It’s a positive sign if the cactus is flowering.
The absence of blossoms indicates that the cactus lacks the energy to do so, which could indicate that something is amiss.
The Cactus Is Standing Upright
A cactus in good health will be erect. A symptom that something may be wrong with the cactus is if it is slanting to one side or is not standing up straight.
The Cactus Is Not Rotting
There is a problem with the plant and it needs to be treated if the cactus is rotting.
Black stains on the skin, white mould, and mushy or soft tissue are a few indications of rot.
What does a cactus that isn’t healthy look like?
Openings in the flesh allow bacteria and fungi to enter the plant. The exposed sections may have been damaged by inanimate things, insects, or animals, or by severe weather, such hail. Injury’s physical manifestation is unimportant; what matters is fungal or bacterial damage.
Fungi and bacteria both produce more spores more quickly in warm, damp environments. When the organism establishes itself in your plant, the cactus will become mushy and soft. Small sunken places, discoloured scabs, spherical soft areas encircled by fruiting bodies, and black or other coloured specks on the cacti’s skin are signs to look out for. You might even see your cactus plants oozing a little bit.
How do you recognise a stressed cactus?
Other clues can help you determine whether your cactus is dying if you miss the early warnings. It’s crucial to be aware of these symptoms so that you can act quickly to help your cactus.
Discoloration
The colour of many cactus changes when they are under stress. Typically, it begins at the plant’s stem or top. To prevent matters from growing worse, you must look into the origin of the discoloration and take action.
Fungal Infections
Cacti with fungal diseases should be avoided. A fungal infection on your cactus will have tears in the tissue, which makes it easy to see.
Gray spots around the base of the cactus are possible, but they don’t necessarily indicate that the plant is in danger. Only wounds that directly affect your plant should be a source of concern. These abrasions can be managed with the use of a spray-based fungicide.
To sanitise the region affected by a fungal infection, use rubbing alcohol with other cleaning agents.
Another method to help manage fungus infections is cactus surgery. Cacti surgery involves simply chopping away the parts of the plant that are infected with fungus.
How can you tell whether a cactus requires water?
Fair enough, it can be challenging to make the appropriate decision. Everyone will give you different recommendations because there is so much conflicting information available. Additionally, many plants have various preferences. How do you even begin?
But the story doesn’t end there. You know, a number of things might impact how frequently you should water. To name a few:
- Temperature
- Humidity
- composition of the soil
- Light intensity
- Season
- Dormancy
- Species
- Outdoors versus Indoors
There are other others, but we won’t go into them now. The most crucial thing to keep in mind is that, even though 10 days is a solid guideline, you should constantly be aware of the shifting circumstances. You should adjust your watering schedule to account for them.
For instance, it’s well known that throughout the summer, you should water your plants more frequently. It is, after all, much hotter. Water evaporates more quickly, and your plants do too!
Arizona experiences intensely hot and arid summers. Your succulents will need water as frequently as possible if they are in a climate like that. You should water them every day or every other day in those conditions, believe it or not.
The East Coast, including Virginia, can have extremely hot summers. The humidity, nevertheless, is also quite high. Evaporation proceeds far more slowly here than it would in Arizona since the air is already so heavily laden with water. In this situation, we advise watering every five to six days.
Naturally, winters are the opposite. Days get shorter, the sun shines less, and the temperature drops. Some of your plants enter a dormant state (much like a bear hibernating).
You water significantly less regularly throughout the winter (especially for outdoor plants). Depending on how often I remember, I water my indoor plants once every two to three weeks. Sedum and Sempervivum are examples of outdoor, cold-tolerant plants that may never need watering since the odd snow or sleet is more than enough.
Root Rot
The risk of root rot is the primary reason we lay such a strong focus on watering regularly.
The quiet killer that kills the majority of succulents and cacti is root rot. Because it takes place underneath the soil’s surface, you won’t even notice anything is amiss until the plant topples over due to a rotting core.
Why does root rot occur? In a nutshell, roots will begin to decay if they are left in water for an extended period of time. This is due to the fact that plants actually breathe through their roots and that air does not travel well through water.
The succulent essentially drowns. It also doesn’t need to be a lot of water. Root rot can develop only from being damp or moist for an extended period of time.
Because of this, frequency of watering is more crucial than quantity. Giving the succulent adequate time to dry out in between waterings is essential.
How to Know if the Soil is Dry
The first step in keeping your plant dry is to have a fast-draining soil that is primarily formed of inorganic components. Step two involves watering only when the plant has completely dried.
It is simple to determine whether the soil is dry. The simplest method is to just insert your finger into the saucepan. A minimum depth of two inches is required since sometimes the surface may be dry but the ground beneath may not be. Don’t water if it feels damp, wet, or even a touch colder than the surface. Allow a few days.
You can also use a soil moisture metre to check. These tools are extremely helpful for inspecting numerous plants, however the less expensive models can be somewhat incorrect.
Finally, just watch for your succulent or cacti’s leaves to wrinkle. It seems scary, but the plant isn’t truly hurt. Instead of erring on the side of wet, choose dry.
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 are indoor cacti cared for?
As long as they are placed in an area that receives at least 4 to 6 hours of sunshine every day, cacti can be cultivated indoors. To ensure they are etiolated, we advise rotating them daily in your brightest windowsill, which is typically a southeast-facing window.
The Stem
In contrast to other plants, cactus stems are multipurpose. In addition to supporting the entire plant, it serves as:
- a water storage facility where plant water can be kept in case of drought.
- using sunlight to provide nourishment for the plant
This suggests that a healthy cactus should have a sturdy, upright stem. The stem will typically be green. The stem’s green hue should be uniform and free of any blemishes or rough spots.
Photosynthesis, which keeps the plant alive, is made possible by a healthy stem. Cacti use a technique known as CAM photosynthesis, which allows them to absorb carbon dioxide at night when temperatures are low and evaporation is minimal. Later, during the day, this carbon dioxide would be used to create oxygen and sugar.
Leaves/pads
While some cacti contain only a few tiny spiky leaves, others make up for this with pads or spikes. The colourful pads of a healthy cactus show no symptoms of leaning over or wilting. Depending on the variety of cacti, the pads would get more numerous throughout time, giving the pant a chance to develop into new plants. Typically, insects or herbivores seeking to feed on the pads may assault them. Dings and discolouration of the outer skin result from this. However, keep in mind that yellowing in the stem or leaves as the cactus ages may be seen; this is natural.
Flowers
Flowering cacti are almost universal. The flowers often bloom for a brief period of time and only during certain seasons. Every season, a healthy cactus produces vibrantly coloured blossoms. A flower on a cactus could have five to fifteen petals, commonly merged with the sepals, depending on the species. Additionally, it has several stamens surrounding a stigma with multiple loves.
A sick cactus could skip several flowering periods or not flower at all. This could be brought on by a shortage of water or nutrients. Notably, a cactus plant’s age can influence whether or not it blooms. Others cacti may stop flowering after a particular age, while some may take years to mature and produce flowers. But it’s crucial to make sure your cactus receive the recommended amount of water and sunlight.
Fruits
Depending on the species of your cactus, an abundance of fruits and seeds usually follow the flowering season. After flowering, a healthy cactus would yield luscious fruits and robust, full-sized seeds. Juicy edible fruits are produced by some edible cactus species, including the prickly pear, barrel, and dragon cactus. A cactus in good health will consistently produce fruits and seeds for the majority of its life.
Spines
A cactus plant in good condition has many upright spines covering its entire surface. These are designed to aid in defending the plant from outside herbivore attacks. By protecting the cactus from cold or dry weather, the spines maintain its health. A plant in difficulties and at risk of perishing from outside threats will have weak or broken spines.
Skin surface
The surface of a healthy cactus plant is wet, shiny, and ribbed. With the ribbed surface, the plant may expand without worrying about bursting as it takes in more water for its reservoir. In times of drought, a healthy cactus also has a waxy surface that aids in lowering evaporation. The plant’s waxy covering also serves to keep pests from consuming the soft and wet inside of the plant.
Roots
A cactus with unhealthy roots could end in calamity. The plant is frequently attacked by root rot, which can be fatal if immediate care is not given. Therefore, it’s crucial to comprehend the traits of strong roots.
Cactus roots cannot be accurately assessed without the plant being uprooted. You could do this when repotting. Typically, healthy roots are white or grey in colour. They are wet, and some of them may have colourful hairs surrounding them. Brownish or dark coloured roots may indicate that the plant as a whole is not in good health, not just the roots.
Soil
Cactus health depends on the soil being in a perfect state for the plant to efficiently absorb nutrients. A healthy cactus will thrive in light, permeable soil. This type of soil ensures the ideal drainage to prevent soggy circumstances that could cause root rot and eventual death. You can choose to produce your own soil mix at home for planting, or you can buy the commercial soil mix found in most arborist supply stores. Here are some of our top picks.
Potting container
A healthy cactus is a given if it is planted in a good-sized pot with drainage holes. It should be a sign of a healthy cactus if the container can still retain the plant comfortably and there are no signs of the roots growing through the drainage holes.
For best results, think about repotting your cactus annually or whenever overcrowding of the roots is noticed. A bigger container provides the plant more room to expand and become more vivid.