Ideal pH: 6.0-6.5. Enrich soil with compost and add ¼ cup complete organic fertilizer into the soil beneath each transplant. Rapid, continuous growth is essential for good yields and high quality. Regular watering is essential. Fal lplantings can be protected from rain by putting a cloche over them. Endive heads can be blanched ro reduce bitterness by placing a cardboard or plastic disc on top. Radicchio requires a good supply of phosphorus and potassium, but will not head and may bolt if there is too much nitrogen available. Days to maturityshown are from date of direct sowing. If transplanting, subtract 10-15 days.