Give it a couple/few years to get established (remember the perennial adage: first they sleep, then they creep, then leap).
The species are commonly called coneflowers and black-eyed-susans; all are native to North America and many species are cultivated in gardens for their showy yellow or gold flower heads. Black-eyed Susan vine (Thunbergia alata) is a frequent sight in hanging baskets at the garden center.This vine is as easy to care for as it is charming. Growing as annuals or short-lived perennials , black-eyed Susans are native to prairies and open woodlands and are attractive to both birds and butterflies .
Grow as an annual or a short-lived perennial. Quick Profile. The flower heads of Brown-Eyed Susan (1-2″ diameter // 2.5-5 cm) are also smaller than Black-Eyed Susan (3″ diameter // 7.5 cm). Rudbeckia fulgida (Black-Eyed Susan) ... Clump-forming, Rudbeckia fulgida is a free-blooming coneflower which grows up to 2-4 ft. in height (60-120 cm) and often tends to form colonies in the wild.. Height varies with the variety; most are less than three feet high. Black-eyed Susan and Brown-eyed Susan are biennial or short-lived but Sweet Black-eyed Susan will persist for many years. Brown-Eyed Susan will be somewhat taller than Black-Eyed Susan. Exposure. 1 - 3 Feet USDA Hardiness Zones. How to Grow Black-Eyed Susans Throughout the Season. They make excellent and long-lasting fresh cut flowers. ), black-eyed Susan vine (Thunbergia alata) is instead a tender perennial climbing vine that is normally grown as an annual. What does the black eyed Susan symbolize? Rudbeckia. hirta and all the showy cultivars are biennial, growing only leaves and stems the first season and blooming the following year. Staking: No staking is required. Watering: Most Rudbeckias will tolerate dry soil for a few weeks. Long-blooming, Rudbeckia subtomentosa 'Little Henry' (Sweet Coneflower) is a compact, clump-forming perennial boasting charming butter-yellow flowers, adorned with quilled ray florets and dark chocolate central cones. Soil Conditions. Mature Height. The black-eyed Susan has been Maryland’s official state flower since its designation on April 18, 1918. Rudbeckia (Black-Eyed Susan) - a genus of North American wildflowers known for their showy yellow coneflowers. Plants grow 2-2.5’ tall with 1-2’ spread. Most species are perennial, but Rudbeckia. Growth Habit: Rudbeckias are compact-growing plants that spread to no more than 2’ wide. The leaves are arrow- or heart-shaped and up to 3 inches long. Full Sun . Dense chocolate colored seed heads form and remain into early winter. They make excellent and long-lasting fresh cut flowers.