Why astrophytum succulents turn yellow, and how to deal with it: can they be grown in a closed humid setup?
Because of its unique shape, the astrophytum succulent is loved by many people, making them want to grow several more. Recently, however, many flower lovers have reported to the editor that their astrophytum succulents have turned yellow and they do not know how to deal with it. Next, the editor will introduce one by one the reasons that cause astrophytum succulents to turn yellow and some solutions.
Reasons astrophytum succulents turn yellow and how to deal with it
1. Overwatering. The potting soil stays in an overly wet state for a long time, with extreme oxygen deficiency, which hinders the normal absorption of nutrients and water, so it turns yellow and drops. At this point you should stop watering and stop applying fertilizer, and keep the soil aerated.
2. Overfertilizing. Because too much fertilizer was applied, the succulent turns yellow. At this point you should stop fertilizing, appropriately increase water, immediately repot, and rinse the root ball with water.
3. Improper temperature. Because the weather changes, the temperature also changes accordingly, so pay attention to adjusting the room temperature to a suitable level in time.
4. Pests and diseases. Gray mold and other fungal diseases cause the plant to wither and turn yellow, so spray pesticide in time for prevention and control.
The above is for reference only. If the astrophytum succulent turns yellow excessively and flower lovers are worried, they can go to a nearby flower shop in time for detailed consultation.
Can astrophytum be grown in a closed humid setup?
Like other succulents, as long as you feel during cultivation that its growth state is not good, you can grow it in a closed humid setup. The advantage of a closed humid setup is that it can provide an artificial environment suitable for growth, speed up its growth cycle, and it does not need to adapt to the four seasons of the natural environment.
Points to note when growing astrophytum in a closed humid setup
1. Pay attention to ventilation. You can poke a few holes in the closed humid bag so that it can be ventilated both day and night.
2. Pay attention to temperature monitoring. If the temperature inside the closed humid bag exceeds 25°C, you need to be careful. You can move the potted plant to a cool place, such as indoors, or a corner of the balcony, where the temperature in the closed humid bag can be adjusted appropriately.
3. Pay attention to opening the closed humid bag in time after growth reaches a certain level, to prevent the astrophytum from depending on the closed humid environment for a long time, becoming unable to adapt to the natural environment, with reduced resistance, resulting in diseases and pests.
How to sow astrophytum
1. Choosing a flower pot
You need to choose a dedicated sowing pot. This kind of pot is convenient and quick, has good water permeability, and will not affect the growth of seedlings. 2. Choosing and using potting soil
It is suitable to use sandy soil with good drainage, a certain degree of aeration, and rich lime content for planting. The specific steps are as follows:
1. The first step is to cover the bottom of the potting soil with a layer of coarser coal cinder, which can effectively block excess water at the bottom.
2. Before adding soil, be sure to filter and screen the potting soil, remove some relatively large soil particles, then put it into the flower pot, cover with a thin layer of fine sandy soil, and you can shake it gently so that the soil becomes more compact.
3. Do a good job of disinfection
1. Before sowing, the potting soil needs to be disinfected. Potassium permanganate is recommended; the concentration can be judged by color, and a transparent red is best. If too strong, it will burn the seeds; if too weak, it will not achieve the disinfecting effect.
2. You can soak it together with the flower pot in the prepared disinfecting solution, so that the soil can fully absorb the potassium permanganate. After the surface soil is moist, take it out, drain the excess water, and after leaving it for 2 to 4 hours, you can sow.
4. Sowing method
The seeds can be sown one by one, which will make transplanting seedlings later especially convenient. Make a small hole in the soil and put the seed in. You can also directly scatter them on the surface of the soil, but it needs to be even.
Growth habits of the astrophytum succulent
Native to northern Mexico and the southern United States. It likes a warm, dry, and sunny environment. It is relatively cold-tolerant and can endure short periods of frost.
Favorite temperature: 18-25°C at room temperature
Watering: water once every 2 weeks during the growing season
Light: full sun, abundant
Propagation: sowing, grafting
Pests and diseases: gray mold, red spider mite
Combination suggestions: Lithops, Sedum adolphi
During cultivation, succulents are affected by climate change and develop various problems, and the astrophytum succulent is no exception. In this case, appropriately choosing a closed humid setup is a good choice, but during the closed humid process you need to pay attention to ventilation so that the plant has room to breathe.