Cauliflower Garden Spacing. Pick out your favorite vegetables to plant in next year's garden. Space cauliflower 24 inches apart in the garden.
Like all plants, cauliflower seedlings start out small but can grow quite large at maturity, often measuring 2 feet across. See how to plant, care for, and harvest cauliflower. Sow indoors in early spring, and set out while the soil is still cool.
Plant cauliflower in rows with each plant spaced 18 inches apart.
If you plan on using a rectangular bed layout rather than a traditional row layout, use the upper end of each between the plant spacing for your chosen vegetable. Typically about 1 square foot sections are preferred. Spacing the plants 18 to 24 inches (45.72 to 60.96 cm) apart. Improve your native soil by mixing in several inches of compost or other rich organic matter.