Cacti and succulents are among the easiest plants to care for thanks to their high resistance. A cactus plant is especially known for needing very little water, making it simple to grow. However, this does not mean that a cactus doesn’t need watering at all. From time to time, it still requires water, but not in just any way. Cultivea shows you how to water a cactus properly in this guide.
When should you water a cactus?
Ideally, you should water a cactus plant moderately during its growing season, which runs from spring to autumn. In summer, the plant needs more regular watering, especially when the soil becomes completely dry.
Succulents like cacti have the ability to store water, and this period offers the best conditions for building up reserves. The cactus enters a dormant phase in autumn and winter. During this time, watering can be reduced or even stopped until spring returns.
How often should you water a cactus?
In general, cacti need watering about once every two weeks during their growing period, from spring to autumn. During very hot summer periods, it is recommended to water at least once a week.
However, several factors can influence how often you should water a cactus:
- The substrate: well-draining soil provides ideal conditions for a cactus. It dries out less quickly, meaning you won’t need to water as often.
- Light: cacti require maximum exposure to light. Plants that receive less light generally need less water.
- Temperature and humidity: as mentioned above, water needs vary depending on the season. In winter, cacti need less water than in spring or summer.
How to water a cactus: key steps
Watering a cactus plant is not just about pouring water onto it. Although a cactus is easy to care for, even for beginners, proper steps must be followed.
1. Choose the right moment
As explained earlier, it’s best to wait until the soil is completely dry before watering again. In summer, weekly watering is usually sufficient. In winter, during dormancy, watering should be spaced out or stopped.
2. Watering method
When watering your cactus, it is recommended to fully soak the soil until water drains out through the holes in the pot. This ensures that all roots receive enough water to grow. Avoid leaving standing water in the saucer to prevent root rot.
3. Water quality
Use water at room temperature. Low-lime water is more suitable for succulents. If your tap water is hard, it’s better to use rainwater or filtered water.
Specific needs of certain types of cactus
Water requirements can vary depending on the types of cactus. For example, the Christmas cactus (Schlumbergera) requires richer, slightly acidic soil, as it originally grows in Brazilian tropical forests.
This cactus is used to consistent moisture in the soil, unlike other species adapted to dry environments. As a result, it needs more frequent watering than most cacti.
Signs of improper watering
A cactus plant is popular among gardeners because of its simplicity. However, easy care does not mean careless care.
Overwatering can lead to soft stems, discolouration or root rot. On the other hand, lack of water can cause the cactus to shrink or wilt.
It is therefore important to regularly observe your cactus to adjust watering as needed.
Additional tips for cactus care
- Repotting: repot your cactus every 2 to 4 years to refresh the soil and give roots more space. Wait at least one week before watering after repotting.
- Fertilising: during the active growing period (spring and summer), use a fertiliser specifically designed for cacti once a month.
- Light: make sure your cactus receives enough light by gradually increasing exposure to direct sunlight after winter.
At Cultivea, we can introduce you to growing succulents with our Mini Kit Wild Cactus. This pack includes several types of cactus, including varieties that produce a beautiful cactus flower, along with all the tools needed to grow them. It’s a great way to start your own cactus garden, even with a small cactus in a simple cactus pot, and turn it into a real passion.
