After the flowering stage of bulbous flowers such as tulips, hyacinths, and daffodils, it is necessary to fertilize them with 30 g/m2 of NPK 15-15-15 or NPK 20-10-10 in order to collect as many nutrients as possible in the bulbs for the next year.
Planted roses should be dug to make the air-to-water ratio in the soil as good as possible. Before digging, fertilize them with 25 g/m2 of NPK 15-15-15 or NPK 20-10-10. NPK 15-15-15 fertilizer comes in small packages, called Florin 2. Before planting roses, apply into the soil 40 g/m2 of NPK 7-20-30, a mineral fertilizer with pronounced content of phosphorus and potassium. During vegetation, 15 g/m2 of CAN or ASN should be added.