Lens for family portraits?

i currently own a d3000 and a 50mm 1.4 and 18-55mm lens. I am renting the body and lens online so i can have a better idea of how it`s going to work . if i like it i will be purchasing it in the future. But back to the family...i will be photographing outdoors near a lot of flowers and greenery. There are 4 people.... show more i currently own a d3000 and a 50mm 1.4 and 18-55mm lens. I am renting the body and lens online so i can have a better idea of how it`s going to work . if i like it i will be purchasing it in the future. But back to the family...i will be photographing outdoors near a lot of flowers and greenery. There are 4 people. What lens and body do you recommend?
Update: i forgot to mention..i have all nikon things
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