Corkscrew rush It is easy to see how this plant got its common name, Corkscrew Rush. This evergreen is a must have for any small pond. It has an unusual cork screw twist to the cylindrical foliage. Although evergreen, cutting it back in early spring encourages fresh new growth. Position: Full sun to part shadePlanting depth: Damp soil to 10cm (4’’) below water level.Growth rate: SlowFlowering Period: June to AugustHardiness: HardySize: Height: 45cm (18”). Spread: 60cm (24") Aquatic pot and compost variations Aquatic plants come in a variety of pot and compost variations that have different benefits for planting and growing. Mesh Pot (Aquatic Compost)Pot can be removed and plant can be planted directly into soil or margins above or below the water line. Pot and plant can also be placed directly into water to be container grown, but will still need repotting in time. Pot (Aquatic Compost)Pot must be removed and plant should be planted directly into soil or margins above or below the water line. Pot (Regular Compost)Pot must be removed and plant should be planted directly into soil or margins above the water line. Cannot be planted directly into soil below the water line.