Growing horseradishApril 15, 2013 12:00 am
Choosing a Site:
Horseradish would love to have full sun. Partial shade would work but the rate of growth will decrease. Horseradish will grow in a deep container, like a whiskey barrel, very easily. The soil needed to grow horseradish needs to be well drained and have a pH of 5.5 to 7. To achieve this pH range, add some acid planting mix to the native soil when planting.
If you bought the plant in the “bare root” form, you should plant it as soon as you are able to work the ground. If you are unable to do this, keep the root it the fridge in a loosely wrapped plastic bag. Dig a hole 1foot 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 top of root just below the surface. Refill the hole with compost and mound up a couple of inches because the dirt will settle with time and watering.
If you bought a horseradish plant, dig a hole twice as wide and deep as the roots of the plant. Add some soil back in the hole. The hole should be the same depth as the roots. Place the plant in the hole and place the remaining soil around the plant. The base of the leaves should be at ground level. Water the plant well. It is normal for the horseradish plant to wilt for a few days after the initial planting. You should see new leaves appear very soon.
After Planting Care:
There are no specific watering issues associated with the horseradish. Keep the soil evenly moist, just the same as any other plant. If you added compost to your soil when you initially planted, it should give enough nutrients for the plant the first year. Any additional year, a slow released well balanced fertilizer will work. This should be applied in the early spring.
For the best flavor do not harvest until the leaves have seen frost. One year old plants have the best flavor, so it is popular to replant new plants every season.