When should a fertilization program for roses begin?

A fertilization program for roses should begin when new growth begins in spring because this timing aligns with the plant's natural growth cycle. As roses awaken from dormancy and new shoots start to emerge, they require nutrients to support the formation of healthy foliage and blooms. Fertilizing at this time ensures that the plants have access to the essential nutrients they need to maximize growth and flowering potential throughout the growing season.

Beginners might consider that fertilizing right after pruning can be tempting, but the focus should be on supporting new growth rather than immediately after the plant is cut back. Additionally, starting a fertilization program in winter would not be beneficial, as roses are dormant and not actively utilizing nutrients during this period. Fertilizing in late summer, while necessary for some plants, could promote new growth that would be susceptible to damage from upcoming colder weather and may not contribute positively before winter sets in. Therefore, initiating fertilization in sync with the onset of new growth in spring is the most effective strategy for healthy rose care.