I have horseradish plants in 20 cm diameter pots, and my problem is that they are only making hair-like roots and none that I can harvest. How long must I wait, as I grew these plants from a root cutting? The leaves are growing vigorously! I have them in pots, as I have not yet found a space in the garden for them. I live in a summer rainfall area (Dec-Feb) with extremely high daytime temps-often reaching 40 degrees and frost in winter (June-Aug). I really hope you can help me, as I am wanting to make my own sauce from the parent plant.
Certified GKH Gardening Expert
They will develop long roots but it may take them 1-2 years to do so. They just need a little more time to develop the kind of roots that you can harvest. If you are seeing growth from the leaves, this means the plant is happy and growing. Eventually it will produce the roots you are looking for.