| Common Name | Water Smartweed |
| Family | Polygonaceae |
| Genus | Persicaria |
| Species | Affinis |
| Origin | China / Japan |
| Blooming | Small white or pinkish flowers in late summer, grown primarily for foliage. |
| Leaf Color | Dark green with red stems |
| Sunlight | Half-shade / Sun |
| Category | Outdoor plants |
| Pet Friendly | No |
Rich organic soil submerged or waterlogged; peat moss mixed with sand.
Requires constant moisture; can be grown submerged 2-10cm deep. Do not let dry out.
Full sun for best coloration, tolerates partial shade in hot climates.
Apply aquatic plant tablets monthly during growing season (May-Sept).
Remove spent flower heads and trim back in late autumn before frost.
These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.
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