Botanical family
Polygonaceae
2 plants
The knotweed family. Rhubarb and sorrel — both tart, both perennial, both robust against pests. Want a part-shade spot and humus-rich soil.
Crop rotation
For Polygonaceae: rotate the spot every 1-2 years; don't follow with the same family the next year. Legumes (beans, peas) are a safe predecessor in most cases.
Nutrient distribution
How many plants in this family are how hungry for nutrients. Raised-bed soil exhausts quickly after heavy feeders — follow with nitrogen-fixers.
- Medium feeders1
- Light feeders1
