Foxglove - An old-fashioned favorite, foxglove features tall spikes of bell-shaped flowers. Not only is it elegant, but foxglove is extremely hardy and easy to grow. Foxglove is also known for its resistance to pests and diseases. So if you want to increase your garden’s pest resistance, try planting foxglove along the borders.
Flowers to grow for height in the garden, tall plants for flower borders.
Tall flowering plants are an essential element in some styles of gardening and for adding height and colour to the flower border......Hollyhocks, Foxgloves, Delphiniums, Wisteria, Fuschias, Climbing Roses, Allium, Verbena, & Sunflowers will add nice height to your gardens.
cosmos - easy to grow flowers ~ This flower is an annual, which means it dies after one season, but it reseeds itself so prolifically you would never know it! Each season new seedlings will come up on their own, with no help from you at all. All they need is a little water and at least half a day of sun, and they will provide you with armfuls of cut flowers all season long. This is our best budget pick…
'Karl Foerster' - Feather Reed Grass(Calamagrostis x acutiflora ) 4-5' x 24" wide. *2001 Perennial Plant of the Year.* Drought tolerant and tolerating a wide range of garden soils. It has a wonderful upright growth habit, making it very useful to place behind perennials with a spreading or rounded shape. The feathery plumes emerge in early summer and ripen to handsome wheat-colored seed heads by fall. Combine w/ Russian Sage. In groups of three or five for best effect. Zones 5-9.