How to water a Christmas cactus without root rot? Detailed watering methods and tips

For growing a Christmas cactus, choose a soil that is loose, airy and well-draining. Because when growing a Christmas cactus, water is an issue that needs special attention. Especially during the bud stage, overwatering will not only cause the hard-won buds to drop, but can also cause root rot in the Christmas cactus. So today let's discuss together how to water a Christmas cactus without causing root rot.

How to water a Christmas cactus without root rot

1. Growing season

Mist appropriately with a fine spray to improve air humidity. In an environment above 15 degrees, the Christmas cactus resumes growth and its demand for water is also relatively high; keep the potting soil slightly moist but not wet, and even less waterlogged. When watering, check whether the potting soil is dry or wet; during the growing season you cannot wait until the potting soil is completely dry before watering, keeping it slightly moist is very important, and keep the potting soil well-draining.

2. Bud stage

After autumn turns cooler, the Christmas cactus begins to form buds. Around the flowering period, special attention must be paid to watering; remember not to overwater, as too much water easily causes bud drop, and the hard-won buds will all fall off.

3. Flowering period

What needs the most attention is the watering issue when the Christmas cactus is blooming. Besides not watering frequently, keep the potting soil slightly dry. Maintain short-day scattered light every day; no need for too much sun, and keep it in a fixed position, do not move it.

4. After the flowers fade

Remove the spent flowers promptly to avoid consuming too many nutrients. Below 12 degrees the Christmas cactus stops growing, and above 35 degrees it also enters a dormant state; at this time do not water too much, control water appropriately, keep some moisture, and after it recovers, carry out warming or cooling treatment.

5. Hot season

Although the Christmas cactus likes a warm, slightly moist environment, it also rather dislikes high-temperature conditions. When the temperature is above 32 degrees, be careful to reduce watering; if you water too much, it easily causes black rot or root rot, because under high temperatures the Christmas cactus stops growing and begins a dormant state; you can appropriately spray water around it to lower the temperature.

Watering methods and tips for the Christmas cactus

1. Winter and spring

Generally, winter and spring are colder, so water once every 7-10 days. As spring temperatures rise, wait until the soil in the pot is nearly dry before watering. The principle of watering is: do not water when not dry, water thoroughly when watering, and wait until dry again before the next watering.

2. Summer

From spring into summer, apply 1 diluted liquid fertilizer every 10-14 days, and after summer officially arrives, move it to a ventilated shady spot for care. During the high-temperature period in summer, stop fertilizing and water less, because at this time the Christmas cactus's growth stalls, but you can spray water 2—3 times a day; if you water too much at this time, it will cause root rot.

3. Autumn

In early autumn, the Christmas cactus should be given more water, especially fertilizer water should be supplied continuously; liquid fertilizer or compound fertilizer can be applied once a week, and before flowering add 1 or 2 more applications of phosphorus fertilizer. During this period, to help flower bud formation and vivid flower color, sufficient nutrients should be supplied. In autumn it can be placed in a sunny spot for exposure, which can promote flower bud differentiation.

4. Bud-forming stage

Although no watering is needed during the bud-forming stage, it should be sprayed frequently to keep the stems and flower buds moist. During the flowering period, a temperature of 1O-15 degrees Celsius is suitable; during the short dormant period after flowering, water less and stop fertilizing, cut off the spent flowers and tidy up, and after new buds grow on the stems, resume normal watering.

How to deal with yellowing leaves on a Christmas cactus

1. Reasonable fertilizing

The Christmas cactus does not have a large demand for fertilizer; during the bud-forming stage, fertilizer needs to be supplemented promptly to promote normal flower bud differentiation. When fertilizer is lacking, just go buy potassium dihydrogen phosphate and water it directly diluted in water; remember the concentration must be low.

2. Control water amount

Watering should be restrained; do not water too frequently. Water when the surface of the potting soil is dry. In winter, water according to the potting soil; only dry, not wet.

3. Moderate humidity

When caring for a Christmas cactus indoors, do not let the plant get too close to a radiator or the air outlet of an air conditioner, otherwise the water on the leaf surface evaporates faster, the leaves dehydrate, and gradually the whole plant wilts and turns yellow.

Propagation methods for the Christmas cactus

1. Cuttage propagation

First you need a pot of a robust, mature Christmas cactus; choose its thick, healthy stem segments, cut off 1-2 segments and place them in a cool place to dry naturally, which takes 2-3 days.

Prepare sandy soil; you can choose peat and sand mixed at a ratio of 4:1, add a little water to ensure the soil is moist.

Insert the stem segments whose cut ends have dried into the sandy soil, keeping the temperature at 15-20°C. After 2-3 days they begin to root, and after 4 weeks they can be transplanted into pots!

2. Grafting propagation

Grafting is usually carried out in May-June or September-October, using a rootstock for the scion. For the scion, choose healthy stem segments of the current year, cut the lower end into a duck-bill shape, and use a cactus or toothpick inserted into the rootstock's wedge opening to fix it. Generally, one rootstock can take 3 scions. After grafting, place it in a semi-shady spot for care and keep the humidity relatively high; if after 10 days the scion is still fresh and firm, it indicates the cuttage has survived.

3. Seed propagation

Prepare soil, mix the soil, in the same way as the soil preparation for cuttage above.

Sow the seeds directly, as shown, 3-5 cm. After sowing, keep the indoor temperature between 22-24°C, which is good for seed germination. Cover the pot opening with thin glass to increase the humidity in the pot. They germinate in 5-9 days. The growth cycle of the seedlings is relatively long, so give more care.

The best season for cultivating a Christmas cactus is March. In this season spring returns to the earth, and flower lovers who want to grow one can choose this period. Of course, different regions will have some differences in climate, so everyone should still choose according to the actual environment.