plant

Wasabi

Eutrema japonicum

Updated 4 Aug 2026 · AI-parsed entry

Wasabi (Eutrema japonicum) — a plant, for Part shade, High water.

What it needs & gives back

↓ Needs

Waterabundant, consistent
Shadepartial to full shade

↑ Gives back

Mulch_biomassmoderate

Through the year

Through the year

JFMAMJJASOND
emergenceEmergence of new shoots in spring when soil temperatures rise above 10 C.
floweringFlowering occurs in early spring as days lengthen and temperatures are cool.
fruitingFruit development follows flowering, typically maturing within 30-45 days.
harvestRhizomes are typically harvested in late autumn or early winter, after 18-24 months of growth.
dormancyWasabi enters a period of reduced growth or dormancy with the onset of colder temperatures and shorter days in autumn.

Soil interactions

Drainageexcellent, consistent moisture
Nitrogen fixingNo
MycorrhizalNo
Soil texturesandy_loam, loam
Organic matterMedium
Compaction toleranceLow

Propagation

Methodsseed, rhizome_division, stem_cuttings
Difficulty3 / 5
Establishes in~1 yr
Stratificationcold_moist
Divisionspring

Wildlife & pests

Can host pestsslugs, snails, aphids
Can host diseasesclubroot