If you fertilize irises like this, they will bloom more and their leaves will be strong!

Fertilization tips

1. Before planting irises, there is no need to apply base fertilizer to the soil because the irises have not yet grown roots that can absorb nutrients. On the contrary, this will greatly increase the salt content in the soil, causing the iris roots to grow slowly.

2. When the iris grows about 4 leaves, you can apply compound fertilizer. Fertilizing at this time can prepare for flowering. Iris blooms from April to June.

3. When fertilizing irises, do not use fertilizers containing triphosphate and fluoride, because irises are sensitive to fertilizers containing fluoride. Other relevant fertilizers may be used.

4. Fertilization should be carried out once or twice before flowering or budding. The fertilizer can be mainly compound flower fertilizer or decomposed thin fertilizer, because a large amount of nutrients will be consumed during flowering, and it can also improve the ornamental value of the flowers. After the flowering period, that is, after the flowers wither, top dressing should be carried out. Because too many nutrients are consumed during the flowering period, top dressing can ensure the normal growth of the plants after the flowers wither.

5. Fertilization should be carried out once in autumn every year. Potassium and nitrogen organic fertilizers can be applied. This can improve the iris' ability to resist cold and also strengthen its resistance to diseases and pests. No fertilizer is needed during the dormant stage of irises.