What flowers bloom profusely in winter? These types can also be grown to burst into bloom in winter

The first flower: Rieger begonia
Friends who have been growing flowers for a long time may recognize it at a glance, but most people probably are not too clear about it. Because it looks quite similar to monthly rose, you still have to carefully identify it to tell them apart. The Rieger begonia has very rich flower colors, and its cycle is also especially long, so if you want it to burst into bloom in winter, you should use nitrogen fertilizer during the seedling stage, phosphorus and potassium fertilizer during the growth period, and spray fertilizer on both the front and back of the flowers. If it is too late to see it burst into bloom this winter, then go buy it next spring, so next year you can see a Rieger begonia bursting into bloom!
The second flower: Kalanchoe blossfeldiana
Kalanchoe blossfeldiana really likes fertilizer. Before it blooms, apply phosphorus and potassium fertilizer once a week, and when it is blooming, apply potassium dihydrogen phosphate about once every ten days. It is best to place it in a spot where it can get sun. Also, when its flowers fade, you should prune it a bit so that the next growth is better and more flowers bloom.
The third flower: Primula
Primula is actually not very big, just a small pot. But if grown well and it bursts into bloom, it is very beautiful, but that depends on how you grow it. Primula is roughly sown in May, and after leaves grow out it needs repotting. After that, when summer comes, it should be placed in a shady spot, and at this time the soil in the pot should be sprayed with carbendazim to prevent disease. Then in September and October, take it outside into the sun, and then bring it back indoors to grow. After that, if flower buds appear, remove them, because only then can it bloom more.
The fourth flower: Chrysanthemum
I actually quite like the scent of chrysanthemums, very fresh and elegant, and it also looks especially beautiful placed indoors. Chrysanthemums bloom easily, but blooming a lot is relatively difficult. I have only occasionally seen a pot of chrysanthemums blooming profusely. If you want chrysanthemums to bloom a lot, first of all the soil is key. It must be loose and fertile soil, and before planting you must apply enough fertilizer. Then when watering, you must use a small spray bottle and water slowly. After that, if chrysanthemum seedlings grow out, the flower center must be removed, because only then can more flowers bloom later.