2. Chrysanthemum morifolium is a typical short-day flower. In the case of long sunshine time, only stems and leaves grow, and flower buds cannot be formed. Only when the sunshine is short every day can flower buds form and bloom. Generally speaking, it takes sunshine 12 hours a day for flower bud differentiation and sunshine 14.5 hours a day for vegetative growth.
3, temperature potted chrysanthemum should choose cold-resistant varieties, generally around 5 degrees Celsius can safely overwinter, but the suitable temperature for chrysanthemum growth is about 265438 0 degrees Celsius, which is not heat-resistant. When the temperature is higher than 32 degrees Celsius, it will grow slowly.
4. Fertilization When fertilizing chrysanthemums, you can first sprinkle fertilizers on the soil, and then pour these fertilizers with water, so that the fertilizers can fully penetrate into the roots of chrysanthemums with water to ensure that chrysanthemums absorb nutrients, so that chrysanthemums can grow better.
5. Wet chrysanthemum is a plant that is afraid of drought and waterlogging. The water demand is relatively large, but it can't accumulate water, which is easy to rot. Now, in the vegetative growth period, because of the need of growth, the demand for water is relatively large, so we should water it frequently.
6. Tapping and bud thinning generally begin when chrysanthemum plants grow to more than 10 cm. Leave 4-5 leaves at the base of the plant when coring, and remove all the leaves above. When new branches and leaves grow out, remove the flower heart and keep 4-7 main branches, which will make more branches and leaves and make chrysanthemums grow better. Chrysanthemum has certain requirements for soil, moisture, temperature and light. This kind of plant is afraid of drought and waterlogging. When watering, be careful not to have too much or too little, and water and fertilize frequently.