Causes and Solutions for Yellowing Leaves on the Bromeliad (Guzmania)

Guzmania is a perennial evergreen herbaceous plant. Because the center of its flower is bright red when it blooms, it is called "Hongyun Dangtou" (Guzmania). It is a very festive plant with good symbolic meaning. But if yellowing leaves appear during cultivation, that is rather disappointing. So what should we do when the leaves of a Guzmania turn yellow?

Yellow leaves on a Guzmania are mostly caused by some problems during cultivation. It may be a change in temperature, or a watering problem. Of course, factors such as fertilizer and light also have a certain influence. Below, Qinnong Web will introduce the main reasons that affect leaf yellowing in Guzmania and some treatment measures.

1. Unsuitable temperature

Guzmania likes a warm and humid environment. The most suitable growth temperature is 21~28°C, and the maximum temperature cannot be higher than 30°C. If the temperature is too high, it may cause slow growth in Guzmania; if it is too low, the leaves or bracts may lose color and turn red or white.

Treatment measures:

In winter, if Guzmania grows poorly due to excessively low temperature, an anti-freeze and cold-protection agent can be sprayed, and the temperature in the growing environment can be appropriately raised; if the temperature is too high, it should be ventilated and cooled in time.

2. Improper watering

Too much or too little watering can both cause yellow leaves in Guzmania. Too much watering easily causes water accumulation, and the plant will rot at the roots; if watering is too little, it cannot meet the normal needs of plant growth.

Treatment measures:

Watering should be moderate, and the degree should be well controlled. A small amount of water can be added to the leaf cup, and when watering is too little, it can serve as a supplement. Once a day, clear water can be sprayed on the leaf surface to remove dust, make the leaf color brighter, and also strengthen the plant's photosynthesis and promote plant growth.

3. Improper fertilizing

Fertilizing is supplementing nutrients to the plant. When fertilizing is improper, it can easily cause yellow leaves in the plant. Especially when nitrogen fertilizer is lacking, it will cause the branches and leaves of Guzmania to become thin and weak, and the leaves will be thin and turn yellow. At the same time, if Guzmania is in its flowering period, it also needs sufficient nutrients.

Treatment measures:

If yellow leaves are caused by lack of fertilizer, the pot should be changed in time, new loose and fertile culture soil should be replaced, and thin decomposed liquid fertilizer or compound flower fertilizer should be gradually applied in increased amounts; during the flowering period, fertilize once a week, and bean cake or fermented rice washing water can be chosen as the fertilizer.

4. Insufficient light

Whether the leaf color of Guzmania can be bright and whether the leaves can be full are both very much related to light. Usually in winter, the light duration needs to be guaranteed to be more than 4 hours, and on cloudy and rainy days, lighting can be added; in summer, place the plant in a cool place and shade it appropriately. As long as the light is suitable, the phenomenon of yellowing leaves will not appear.

The above is the relevant causes and treatment measures for yellowing leaves in Guzmania introduced by Qinnong Web. We hope it can be of some help to everyone. Qinnong Web previously also introduced the cultivation methods of Guzmania. Friends who are interested can also go and take a look. Maybe it will also be of some help to your cultivation.