Variety field guide
What to expect from Akatade Water Pepper Seeds
Akatade is a Japanese water pepper grown for a sharp, peppery bite and young shoots flushed with red.
Read the complete product descriptionTraits, flavor, garden use, variety notes, and the full catalog record
Akatade is a Japanese water pepper grown for a sharp, peppery bite and young shoots flushed with red. Known as beni-tade when harvested young, it adds color and a spicy accent to small garnishes; mature foliage becomes greener. This leafy herb belongs to the buckwheat family, not the pepper family. Give it a consistently moist patch or a roomy pot, and pick small amounts to season a dish while enjoying an unusual addition to the kitchen garden.
A vivid young garnish with a lively peppery bite.
Growing facts
- Botanical name: Persicaria hydropiper
- Maturity or display: About 60 days for established plants; tender young shoots can be harvested earlier
- Mature size: Plants about 12-30 in tall, depending on conditions
- Spacing: 8 in between plants; rows 18 in
About the variety
Akatade is a Japanese selection of water pepper, a member of the buckwheat family. Young red shoots are associated with the culinary garnish beni-tade. The species occurs across much of the Old World and is naturalized elsewhere; its peppery flavor comes from the leafy plant rather than a Capsicum fruit.
Starting seed
Sow 1/8 in. deep after frost, or start indoors 4-6 weeks early. Sprouts in 7-14 days at 65-75 F. Thin to 8 in.; rows 18 in. Keep soil consistently moist.
Care through the season
Choose fertile soil that holds moisture in full sun or light shade. Check containers often during warm weather. Pinch young shoots to encourage useful branching, and harvest modestly so plants keep growing. Remove unwanted seed heads before they shed, especially near drainage ditches or wet ground.
Harvest and use
Snip tender shoots and leaves for small, peppery garnishes. Use fresh. For seed, let selected heads brown and dry before collecting; prevent unwanted self-sowing.
Saving seed
Water pepper is self-fertile and can reseed readily. Retain healthy representative plants, let seed heads mature and turn brown, and collect before the small dark seeds scatter. Dry and clean them under cover, then store in a cool, dry place with a clear variety label.
Common problems
Dry soil can interrupt tender growth. Slugs may damage young seedlings, while overly crowded foliage can develop leaf problems. This species can spread in disturbed wet ground; grow it where volunteers can be monitored and removed.
Frequently asked questions
When can I start harvesting?
About 60 days for established plants; tender young shoots can be harvested earlier.
How should I grow it?
Choose fertile soil that holds moisture in full sun or light shade. Check containers often during warm weather. Pinch young shoots to encourage useful branching, and harvest modestly so plants keep growing. Remove unwanted seed heads before they shed, especially near drainage ditches or wet ground.
Can I save seed?
Water pepper is self-fertile and can reseed readily. Retain healthy representative plants, let seed heads mature and turn brown, and collect before the small dark seeds scatter. Dry and clean them under cover, then store in a cool, dry place with a clear variety label.





