What to do if Christmas cactus doesn't bloom

1. Reasons for not blooming

1. The lighting time is too long

Christmas cactus is suitable for short-day light, and it is difficult to form flower buds if the light is more than 10 to 12 hours.

2. The room temperature is not suitable

If the room temperature is too low, it will be difficult for the Christmas cactus that has already formed buds to bloom. At this time, the flower pot needs to be moved to a greenhouse room and the temperature should be kept above 15 degrees.

3. The temperature difference between day and night is too large

If the temperature difference between day and night is too large, the pregnant flower buds may be damaged or fall off, causing the Christmas cactus to not bloom. It needs to be exposed to more sunlight outdoors during the day and brought back to the room at night to prevent the temperature difference from being too large.

2. Methods to promote flowering

1. Use less nitrogen fertilizer

Although fertilizers high in nitrogen are essential for the normal growth of Christmas cactus, if too much nitrogen fertilizer is applied, the nutrition will be abundant and reproductive growth will be inhibited. In this way, the crab claw will appear to be unwilling to bloom. Therefore, be careful about the amount of nitrogen fertilizer used.

2. Correct lighting

Crab claw is a typical short-day plant, and it can only bloom successfully under light conditions with short days and long days. The correct management method is to place the Christmas cactus in a place where the lighting is synchronized with nature during the day, and in a dark place at night to avoid exposure to light.

3. Suitable temperature

In a low temperature environment below 15 degrees, the development of crab claw flower buds will be slow, and it is very easy to cause the phenomenon of dumb buds and death of flower buds at this time. When the temperature reaches below 0 degrees, the flower buds of Christmas cactus will be directly frozen and die. The temperature should be maintained between 15 and 25 degrees to ensure the normal development of flower buds.