How Often to Water a Cactus? A Detailed Guide to the Correct Watering Method

The cactus is one of the most well-known ornamental flowers; it has strong vitality and is very easy to care for. Next, let's take a look at how often to water a cactus.

The cactus originates from the grasslands of South America. It likes high temperatures and dry environments, and needs plenty of sunlight. As the saying goes, "watering takes three years of skill," meaning that growing flowers is really about mastering water. The result is that many plants neither die nor grow, and in the end their appearance gets worse and worse, losing their luster and developing spots. Conversely, when watered too much, the roots cannot absorb it all, which disrupts the roots' respiration, and the plant then rots and dies. So how to water scientifically and reasonably is the key.

How to Water a Cactus: Water Quality

How to water a cactus? Before that, one prerequisite you need to address is water quality. For watering flowers, it is not recommended to use tap water directly; instead, let it sit in the sun for several days. This allows the water to react with chlorine to form hypochlorous acid, which has a sterilizing effect. If conditions permit, you can also use mountain spring water; mountain spring water contains some water-soluble salts, which undergo hydrolysis, making the pH weakly acidic. The water is softer and less likely to produce limescale, or you can add a little white vinegar to the water.

How to Water a Cactus: Watering Time

The second difficulty in watering is the timing. Summer is the growing season for cacti, with high temperatures and a large water requirement. You must water thoroughly, and it is best to do so in the early morning or evening when temperatures are low; at noon it is hot, and watering can easily cause sunburn on the body of the cactus. During the hot, rainy season, watering should also be appropriately reduced. For cacti with a sunken top, be careful not to let water get into the depression, as this can cause rot; this is even more important when watering in the evening.

During winter dormancy, watering should be reduced, just enough to keep the potting soil from becoming overly dry; the lower the temperature, the more the potting soil should be kept dry. Mature large cacti are more drought-tolerant than small seedlings. Watering in winter should be done on a sunny morning. As the temperature rises, the plant will gradually come out of dormancy, and only then can the frequency and amount of watering gradually increase.

How to Water a Cactus: Watering Method

As for the watering method, many people like the soaking method. Although soaking can use siphon action to evenly draw water up to the top, it can also clog the gaps in the soil. Prolonged soaking is bad for the root system, because the lack of air spaces causes oxygen deprivation in the plant's roots, producing alcohol. Once problems arise in the roots, problems will also appear in the plant above, forming a vicious cycle. Watering should be done by slowly pouring along the rim of the pot until water flows out of the bottom. Basically, follow the principle of "spray water for seedlings, pour water for mature plants."

The cactus is a plant that is not afraid of lacking water, but fears too much water. Too much water will cause the root cells of the cactus to die from lack of oxygen, so during cultivation, be careful not to let the cactus get rained on; even if it does get rained on, drain the water away promptly. The optimal growing temperature for cacti is 20-35 degrees. Most types of cacti prefer a large temperature difference between day and night, growing under conditions of 35 degrees during the day and around 20 degrees at night, which is conducive to the production and accumulation of organic matter, thereby promoting vigorous growth of the cactus. After reading my introduction, friends who want to grow plants might as well try growing a cactus.

The above is the full content of my summary on how often to water a cactus. I hope this article can help everyone. Please also continue to follow us.