How can i make my rose plants to give big flowers?

The way to get large blooms is to pinch off all of the blooms on a stem except for one. That usually gives you the largest flower.

FlowersBirthday FlowersSympathy Flowersuse a complete fertilizer once a week follow the specified instructions indicated in the pouch
Reply:water them with beer and coffee grounds, seriously
Reply:Tomato feed
Reply:Go to the nursery and ask for plant food specifically for roses.loan