Applying fertilizer to flowers in late autumn should be done in small amounts and more frequently.

When applying fertilizer to flowers, you should follow the principle of small amounts more frequently. It is like people eating: a little less, a little more often, which is very beneficial. The key points for fertilizing flowers in late autumn are as follows:

Fertilizing flowers in late autumn should be combined with watering, generally applying a light fertilizer once every 15 days. It is divided into base fertilizer, topdressing and foliar feeding. The base fertilizer is added with the soil when potting or repotting. Topdressing is generally liquid fertilizer, such as soybean cake water. Foliar fertilizer generally uses fertilizer at a concentration of 0.1%-0.2%, such as potassium dihydrogen phosphate, urea, etc.

If the flowers go dormant in winter, phosphorus and potassium fertilizer can be applied; if they do not go dormant, nitrogen fertilizer can be applied. Reasonable phosphorus and potassium fertilizer can improve the cold resistance of flowers. Flowers that bloom in winter are in the vegetative growth period in early autumn, so fertilizer mainly based on nitrogen should be applied; in late autumn, most are in the bud stage, and when applying fertilizer to such flowers, phosphorus and potassium fertilizer should be the main component with nitrogen fertilizer as a supplement. Applying too much nitrogen fertilizer is detrimental to winter blooming.