Hydrangea paniculata Little Lime ('Jane') (PBR) - It may be half the size of its sibling 'Limelight', but this fab new hydrangea still packs pretty good punch. It has strong stems that support the weight of the conical, lime green flowers, which fade to cream and then pink as the season progresses. Grate where space is limited, but you want a hard-working and colourful plant, it can also be grown in large pots if kept well watered.
Mini Oasis If space is limited, a small fountain, bubbling millstone or half-barrel or trough filled with water and aquatic plants can be a good option. Place your feature by a seat or close to the house where it will be visible from the window. When planting a miniature pool, take care to avoid vigorous plants and rely on small, compact plants like pygmy waterlilies.
Raindrop Mini Watering Can Collects Rain from Urban Balconies and Rooftops