Milkweed Sun Requirements. The common milkweed does well in what might be considered average conditions. In.
In. Common milkweed grows well in average garden soil. Top of plug should remain approx.
Plant in blocks rather than long rows.
Young milkweed plants need plenty of diffuse light as they grow plant in full sun locations. Milkweed are a full sun plant which mean they need at least six hours of sun a day. The common milkweed does well in what might be considered average conditions. Common milkweed plants grow to about 2 to 4 feet in height with a thin vertical growth habit.