Japanese clematis Iris, Iris kaempferi Also known as Iris kaempferi, Iris ensata produces varying coloured, clematis type flowers - ranging from dark blue to bright purple flowers in summer. The flowers are often boldly marked with yellow. Iris ensata forms clump of broad-bladed, erect leaves. It prefers moist to boggy soil. As with all iris the tubers are harmful if eaten. Position: Full sun to part shadePlanting depth: Plant in the damp marginGrowth rate: MediumFlowering Period: June & JulyHardiness: HardySize: Height: 90cm (36"). Spread: 30cm (12") 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.