The suitable growth temperature of Eustoma grandiflorum is 15 ℃ - 28 ℃, which can endure the low temperature of 0 ℃ for a short time. During the growth period, the temperature at night should not be lower than 12 ℃. If the temperature is lower than 5 ℃ in winter, the leaves of Eustoma grandiflorum will become rosette like and can not blossom. If the temperature is higher than 30 ℃ in summer, the flowering time of Eustoma grandiflorum will be shortened.
Platycodon grandiflorum likes humid environment, but too much water will damage the roots of Platycodon grandiflorum, and it is easy to get sick. Too little water will weaken the growth of plants and advance the flowering period.
Therefore, water should be appropriate, not over watering.
Platycodon grandiflorum likes a warm and well lit environment. Long term light is conducive to the growth of stem, leaf and flower bud, so it is best to keep 16 hours of light every day.
Platycodon grandiflorum likes fertile and loose soil with good drainage performance. It is better to select the improved garden soil with peat soil, rice bran and a small amount of lime.
The water requirement of Eustoma grandiflorum is very strict, too much water will damage the root, too little water will cause the growth of stem and leaf to weaken, so it is best to adopt the drip irrigation measures, which is most beneficial to the growth of Eustoma grandiflorum.
If Platycodon grandiflorum is to be potted, the substrate used should be treated with high temperature steam or brominated methanol for disinfection, and the pH of soil should be kept at 6.5-7.0.
After the formation of flower bud, it is necessary to avoid high temperature and humidity environment, otherwise it is easy to cause fungal diseases.
Before planting Eustoma grandiflorum, manure and bone meal should be added to the soil as the base fertilizer. Because Eustoma has a large demand for fertilizer, it should be applied in time during the growth process.
