Dwarf hair grass or Needle spikerush Ideal for planting in ponds, Eleocharis acicularis is a useful oxygenating aquatic that will happily spread to form a tufted carpet of evergreen grassy foliage. Needle-like stems topped with spiky brown blooms are sent up from August to September, giving rise to its common name of Needle Spike Rush. This hardy native perennial is particularly versatile, growing anywhere from boggy soil to submerged in up to 60cm (24") of water. Position: Full sun to part shadePlanting depth: Damp soil to 60cm (24") below water level.Growth rate: SlowFlowering Period: August & SeptemberHardiness: HardySize: Height: 40cm (16"). Spread: 100cm (39") 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.