Tree fern specialists hsk have developed this specific concentrated tree fern feed to get the best results from their wonderful tree fern logs r in their native habitat tree ferns grow in dense shady wooded areas beneath the main tree canopy leaves falling off trees gather in the crown of the tree fern and mix with rain slowly feeding the top of the log where the new fronds emerge this is unlikely to happen here in uk gardens even in shady areas so this specialist tree fern feed mimics