How To Care For Swamp Hibiscus. Or simply plant at the back of the garden and allow it to reach. However the plant which dies and enters a dormant period in winter shouldnt be watered until it displays new growth in spring.
Since this plant needs consistent moisture opt for good quality potting soil. At the end of autumn and in winter it should be watered once a week. Rose mallow benefits from rich soil amended with at least 2 or 3 inches of compost manure or other organic material.
Alternatively apply a 10-10-10 fertilizer around the base.
To keep them away place fencing around your hardy hibiscus. Potting and Repotting Swamp Hibiscus. Swamp hibiscus do best in full sun and mildly acidic soil. Place pots outdoors or even in shallow areas of ponds.