Recovery of smooth coneflower in the Chattahoochee National Forest, Georgia, USA

Summary

Smooth coneflower (Echinacea laevigata), federally endangered since 1995 and confined in Georgia to 25 occurrences across four populations in just two counties, requires disturbance-maintained open post oak-blackjack oak-pine savanna habitat that has declined through decades of fire suppression, prompting a multi-agency recovery effort led by the Georgia Plant Conservation Alliance combining prescribed burning, manual removal of woody competition, and active translocation toward the federal recovery goal of 12 stable, self-sustaining populations. A carefully designed experimental pilot reintroduction, conducted as part of a graduate thesis, achieved up to 95% two-year survival using tested transplanting methods, building sufficient confidence for agencies to support wider-scale restoration; translocation sites were chosen to closely match extant habitat in plant community, soil and topography, each receiving a prescribed burn 18 months before planting and targeted woody-competition removal three months prior. In late fall 2007, the first coordinated translocation planted over 100 one-year-old coneflowers and sowed 300 seeds at each of three sites, with plants quarantined and disease-screened beforehand and grown in isolation from other Echinacea species to prevent hybridization; four other rare associated plant species are being propagated in parallel for community-level restoration at the same sites. Monitoring combines landscape-scale vegetation plots tracking fire-restoration effects against reference sites with individual-level tracking of translocated plant survival and future reproduction. Major difficulties included balancing species recovery against other uses of multi-use public land, drought effects, and coordinating a large multi-agency effort. The project rates itself Successful, crediting the strong Georgia Plant Conservation Alliance partnership, sustained institutional commitment, and carefully defined recovery goals.