Cylindrical type encasement devices and method for planting mangrove propagules or seedlings along high-energy shorelines and in non-native environments. The devices can use interior (or exterior) longitudinal grooves or thinned channels or lines of holes that hinge the device along the longitudinal axis to facilitate increases in the displacement. This displacement results in acceleration of both plant development and the adaptation process, thereby improving long-term survivability and promoting reproductive maturity in order to establish self-sustaining mangrove trees and forests. The device facilitates forced adaptation, that is, induced changes in morphology and structure in order to habituate the developing mangrove tree to environments where natural recruitment cannot occur. A manufacturing process enables control of the structure, color and opacity, to facilitate optimization of the device for applications in habitat creation, restoration, shoreline stabilization, erosion control, and environmental remediation. Safe and easy removal of the device from the environment occurs at the completion of the adaptation process without harm and damage to the tree.
