Root vegetable most commonly used to make Wasabi.
WHEN TO PLANT: Plant your roots as soon as you can work the ground in early spring. If you need to wait; store roots in original packaging in the refrigerator for a short time.
WHERE TO PLANT: Horseradish prefers a sandy well-drained area in full sun but will tolerate part shade. Choose a generous site for this prolific vegetable which can grow to 24" tall and 18" wide. A good plant to grow in the perennial herb garden or a deep container like a whiskey barrel planted.
HOW TO PLANT: Dig a hole 1 foot across and as deep as your shovel. Loosen the soil in the bottom of the hole. Place root on a 45 degree angle, around 6 inches deep for the small end and cover top of root with 1 to 2" of soil which will settle with time and watering. Keep soil moist while new plants become established.
TIME TO HARVEST: Wait until the second fall after planting to harvest horseradish. For the best pungent flavor; wait to harvest roots until after several hard frost, or late fall. Dig up and separate out the fleshy roots from the side shoots.