Question
My seven sister  rose blooms pretty in the early spring then the blooms fall off. How can I get it to bloom longer?

Answer
When a rose starts to produce flowers, it will need more water than you usually give it. Seven Sisters produces a lot of flowers so keep it well watered when it starts to bloom. Also after blooming, give it a couple of handfuls of any rose fertilizer, as that is when it is gig to make more new flower buds for next year. Roses love cool roots and any type of mulch keeps the soil cool and damp, so you could also  putting a mulch all around the base of the rose.