Hello. The lack of flowering may be due to several abiotic factors, such as stress during planting, unfavorable environmental and care conditions (soil characteristics, light, temperature, atmospheric humidity, watering, fertilization, etc.) and others. The stress suffered at planting can have effects over a longer period of time, depending on the plant’s ability to regenerate, and on the environmental and care conditions provided (Ornamental trees and shrubs - Planting guide). The flower differentiation that produced flowers during this growing season took place in the previous year of vegetation.
If you have not identified any specific symptoms of diseases or pests, it is recommended to ensure the optimal environmental conditions for this plant species (Roses, planting guide and care work) and to fertilize the rose properly. You can consider using the fertilizers that you own or fertilizers from our product catalogue, such as by watering at the roots, respectively or by spraying the leaves, in accordance with the recommendations in the description of the products.