One of the most popular plants of all-time: the Hydrangea! Gorgeous in the garden, but also a lovely splash of colour indoors!
These plants are thirsty so it's important to keep the soil moist. As they also take up water through the flowers, it's good to spray them now and again. The plants like a bright spot.
After you've enjoyed it indoors you can pop it in the garden where it will establish as a lovely shrub!