The Display: Go bold with elegant ivy orbs by the door. Depending on the size of your space, use them alone, as a pair, or even as a trio. Stagger sizes. Elevate simple globes by planting in classic cast-iron urns with pedestal bases.
The Care: Don't assume your topiaries are getting enough water just because they are outside. This is especially true if they're partially sheltered by an overhang. Water when soil is dry to the touch, and spray foliage with water regularly to prevent spider mites. Though this pest is known to plague indoor plants when conditions are hot and dry, spider mites can also cause problems outside in protected areas.
Editor's Tip: To keep orbs and other shapes lush and free of bare spots, rotate the pots and trim plants to encourage equal growth on all sides.