I only start bloom nutrients when its actually blooming, untill then u can stick to vegging nutes or nitrogen only. On first signs of flower i switch to 50%vegging nutes 50% bloom nutes. After 2 or 3 weeks in flower only then do i switch to fully bloom nutrients. If u want solid hard nuggs u can consider adding some PK 13-14 to the blend. Canna or plagron are my fav brand for that