Wasabi is a challenging plant to grow, yet it can be done with care and proper cultivation.  To learn more on how to grow wasabi, click here.VARIETIES: Duruma and Mazuma are the popular wasabi varieties. Mazuma tends to be the spicier plant of the two.

CULTIVATION:

Soil preparation: Till the soil and add organic matter mixed with sulfur-rich fertilizers.  Wasabi grows best in loose, organic-rich and moist soil.  Choose a garden that has heavy shade or near a supply of fresh water. To learn more about soil preparation, click here. 

Planting:

  • Wasabi should be planted by transplants.
  • Plant in the spring, when temperatures are continually above 30° F.
  • Use a garden bed that gets at least 75% of shade during the day. 
  • Wasabi plants prefer 50-60° F weather throughout growing season. 

Irrigation: Plants enjoy being moist at all times, grow along streams or by other bodies of fresh water for best results.  To learn more about irrigation, click here.

Fertilization: Slow release fertilization applied every 3-4 four weeks is best for the plants.  To learn more about fertilization, click here.

Harvest: Harvest the roots in the spring or autumn when temperatures are cool.  Pull up the entire plant and wash.  Use wasabi fresh or dried.

COMMON PESTS AND DISEASES: Aphids, snails and slugs are common pests that affect wasabi.  Wasabi is also vulnerable to various stem and root fungal and bacterial diseases.  To learn more about pests and diseases, click here