How to Grow Golden Barrel Cactus? Detailed Guide to Cultivation Methods and Precautions

The Golden Barrel Cactus is a giant among cacti, usually grown outdoors, growing and arranged together with some large cactus species. Although it is relatively large, that does not mean it is easy to grow; cultivating the Golden Barrel Cactus also requires mastering the correct methods and techniques, so that this big fellow is not just puffed up.

Cultivation Methods and Precautions for the Golden Barrel Cactus

1. Soil Selection for the Golden Barrel Cactus

It requires loose soil with moderate fertility, neutral or slightly acidic pH, and rich in organic matter. Bagged soil is available on the market, or you can mix your own: ① 3 parts loam, 2 parts leaf mold or peat soil, 1 part sieved bone meal, 4 parts coarse sand; ② 3 parts coarse sand, 3 parts garden soil, 2 parts leaf mold, 1 part calcareous material, 1 part crushed brick or tile, with a little superphosphate, charcoal granules or bone meal added.

2. Temperature Requirements for the Golden Barrel Cactus

Temperature plays an important role in the growth cycle of the Golden Barrel Cactus. In winter, the Golden Barrel Cactus is in a dormant state. In April, the Golden Barrel Cactus wakes up and begins to grow. In May and June, when the temperature reaches the optimal growing temperature of 25-30°C, the Golden Barrel Cactus enters its vigorous growth period. In July and August, when the temperature exceeds 35°C, the Golden Barrel Cactus enters summer dormancy. In September, when the temperature drops to 30°C, the Golden Barrel Cactus wakes up again and begins to grow once more. With good care in autumn, its growth rate may exceed that of spring. In mid-to-late November, as the temperature drops, the Golden Barrel Cactus gradually enters its dormant period. At this point, the annual growth cycle of the Golden Barrel Cactus comes to an end.

3. Light Requirements for the Golden Barrel Cactus

When cultivating the Golden Barrel Cactus, you should meet its demand for sunlight as much as possible. Except for bringing it indoors in winter, it must be placed in a sunny spot all day in spring, summer and autumn. If the Golden Barrel Cactus is kept indoors for a long time, it will affect its body color and spine growth, causing the body to become deformed and lose its ornamental value. In winter, when brought indoors, the Golden Barrel Cactus should be placed on a sunny windowsill, and the pot should be turned after a period of time so that all parts of the body receive even light. During the scorching direct sun of midsummer, it should be properly shaded. The author's approach is to cover the upper half of the Golden Barrel Cactus with a colored plastic bag to protect the fuzzy hairs on top from rain, then use a large plastic bag to cover both the cactus and the pot, and place it in the spot outdoors with the longest sunlight exposure. During the high temperatures of midsummer, remove the large plastic bag to prevent the stuffy, damp conditions inside from causing the body to rot. After removing the bag, the potted cactus is in a ventilated environment and grows well.

4. Watering Requirements for the Golden Barrel Cactus

Although the Golden Barrel Cactus is drought-tolerant, it does not mean it needs no water. Some Golden Barrel Cacti never grow large, or even shrink, which is related to not being watered for a long time. During the growing seasons of spring and autumn, the Golden Barrel Cactus should be given sufficient water; during the dormant periods of winter and summer, watering should be restricted. In the early growth stage, water once every 4-5 days or once a week, pouring water from the edge of the pot, preferably at 9-10 AM or 4-5 PM. Tap water is best left to stand for 2 days before use. From late April to June, the Golden Barrel Cactus's water demand increases; water once in the morning and once in the evening, and water thoroughly. During the plum rain season in June, be careful to prevent the potting soil from becoming too wet, which can cause root rot. In July and August, the Golden Barrel Cactus enters summer dormancy and watering should be restricted. From late September to October, the Golden Barrel Cactus enters its growing period again, watering once every 3-4 days. In November, the growth of the Golden Barrel Cactus tends to stall, and watering can be done once every 10 days. In December, the Golden Barrel Cactus enters dormancy and may not need watering, to enhance its cold resistance.

5. Fertilization Requirements for the Golden Barrel Cactus

In spring, apply dilute fertilizer frequently, once a week. In May and June, once every 4-5 days, with a slightly higher concentration. During the high temperatures of midsummer, do not fertilize. In September and October, apply once a week; from November to the following spring, do not fertilize. Use decomposed poultry or fish meat residue or poultry manure, diluted with water, preferably applied at 9-10 AM or after 5 PM, and water again one day after fertilizing.

How to Grow the Golden Barrel Cactus

1. The Golden Barrel Cactus needs sufficient light

Sufficient light is the greatest boost for growing a healthy and beautiful Golden Barrel Cactus. When there is plenty of sunlight, the Golden Barrel Cactus grows more robustly and with brighter colors. Basically, the structure of the entire Golden Barrel Cactus body will produce different effects because the surface and the top of the body receive different degrees of light, causing the photosynthesis effect in each part of the Golden Barrel Cactus to differ.

However, the effects of light are not all positive. Sometimes, under the influence of strong light, the lower part of the Golden Barrel Cactus body may already have entered dormancy, while the top of the plant is still growing. At this point, the plant's growth becomes deformed, developing a gourd shape and reducing its ornamental value.

2. The Golden Barrel Cactus needs a plastic film cover

To make the Golden Barrel Cactus's shape more beautiful, in summer some measures need to be taken to prevent it from growing into a gourd shape.

When summer temperatures are high, a circular plastic film can be placed around the top growth section. This film can inhibit the growth of the top of the Golden Barrel Cactus, change the growing environment at its top, and make the fuzzy hairs on top brighter in color and denser.

In addition, using this method can also balance the humidity of the Golden Barrel Cactus's growth, making its body rounder.

3. The Golden Barrel Cactus needs other measures

Another method is to frequently rotate the pot of the Golden Barrel Cactus, so that the entire Golden Barrel Cactus can evenly receive sunlight as it grows, preventing it from growing lopsided.

During the growing period, it is necessary to maintain sufficient moisture and fertilize regularly, so that the Golden Barrel Cactus has adequate nutrients and can grow healthily and beautifully.

When Does the Golden Barrel Cactus Bloom

It is not very common for the Golden Barrel Cactus to bloom, because only a carefully tended Golden Barrel Cactus has a chance of flowering.

If the Golden Barrel Cactus is too young, it is unlikely to bloom, because only mature Golden Barrel Cacti will flower, and for the Golden Barrel Cactus to reach maturity generally takes twenty or even thirty years.

Can the Golden Barrel Cactus Be Grown in Water?

The Golden Barrel Cactus can be grown in water. A water-cultured Golden Barrel Cactus has a brighter and more beautiful body. The best time for water culture of the Golden Barrel Cactus is in spring and autumn.

Although the Golden Barrel Cactus is large, it is not born that large; it only reaches full maturity through slow growth and development. Going from a normal-sized cactus to a large cactus takes a very long time, so this is something that requires patience.