These marigolds are an annual and were transplanted as a block of one square metre into Bed G1 where brassicas were grown last season.
For the many other benefits of marigolds visit Mexican Marigolds which grow else where in the garden as a perenniel plant.
Next to the marigolds in Bed G1 is a square metre block of Simba Dwarf Beans.
They too play a role in crop rotation as they follow Brassicas which have a high requirement for nitrogen which they withdraw from the soil.
Beans however are nitrogen fixing plants capable of replenishing nitrogen in the soil.
Marigolds and Beans are companion plants; the marigold has nematode inhibiting properties.
They grow together elsewhere in Jan’s Garden where the marigolds are at the base of the Lazy Housewife Beans.