Water Pepper Herb Seeds - Akatade. Heirloom, Non-GMO. Annual. Persicaria hydropiper. Other names: benitade, knotweed, murasakitade, smartweed, tade, water pepper. 27 days. This Japanese specialty herb can be harvested as a seedling or allowed to mature for its flower spikes. Approximately 10500 seeds / oz.

We recommend sterilizing these seeds before planting. Water pepper seeds are commonly known for contamination and should be sterilized before planting for healthy growth. Click to learn how to sterilize seeds.