.Just saw large planters like this on William-Sonoma's Agrarian site.  Like the use of the tall topiary w/ underplantings.

Frame your entrance with a pair of our artificial Privet Trees. Elegant, classy and maintenance free. Also love the door

Stadstuin aanleggen: van grindbak naar stadsoase | Deel 2

Stadstuin aanleggen: van grindbak naar stadsoase

25+ DIY Outdoor Furniture and Decor Projects

CEMENT PAVER PLANTER BOXES: All you need are a few - pavers, - landscape-block adhesive, and a little time. Wait 24 hours for everything to cure and you're ready to move your new planters into place and fill them with dirt and greenery.

Maak van een oude pallet een sfeervolle kruidentuin

Pallet Garden: If you’ve run out of space on your patio for more pots, try going vertical with a cool pallet planter. (via Apartment Therapy) - 15 Tiny Outdoor Garden Ideas for the Urban Dweller via Brit + Co.