Blue Annual For Part Shade

Photo By Ball Horticultural Company

Waterfall Blue Lobelia

Blue is a coveted hue in most gardens, and lobelia delivers with season-long blooms. Waterfall Blue unfurls light blue blossoms, while other lobelia varieties open flowers in shades of purple, white, pale blue and bicolor blends. This pretty annual shines in hanging baskets or containers, where its trailing stems cascade to form waterfalls of blue. Grow it in part shade to full sun. In hotter regions, definitely give plants shade during the hottest part of the day. Trim plants to encourage a fresh flush of flowers, especially if summer heat causes them to look straggly. Lobelia flowers beckon butterflies and hummingbirds. Plants grow 8 to 12 inches tall and 24 to 30 inches wide.