- Species and varieties: Wasabi (Eutrema japonicum) is a member of the Brassicaceae family. There are two main varieties of wasabi: 'Daruma' and 'Mazuma'. Both are known for their pungent flavor and are used in Japanese cuisine.
- Hybrid or heirloom: Wasabi seeds are typically heirloom varieties, as they are propagated from traditional plants that have been cultivated for generations in Japan.
- Pruning and training: Wasabi plants do not require extensive pruning. However, removing any yellowing or dead leaves can help maintain plant health. Training is not necessary as wasabi grows naturally in a rosette form.
- Fertilization needs: Wasabi plants benefit from a balanced fertilizer with equal parts nitrogen, phosphorus, and potassium. Fertilize every 4-6 weeks during the growing season. Organic compost or well-rotted manure can also be used to enrich the soil.
- Hardiness zones: Wasabi is best suited for USDA hardiness zones 8-10.
- Climate requirements: Wasabi requires a cool, moist climate with temperatures ranging between 45-75°F (7-24°C). It thrives in shaded areas with high humidity and consistent water supply, mimicking its natural habitat along stream beds in Japan.