🪷 Water Chestnut

Eleocharis dulcis

aquatic aquatic sedge Cyperaceae

☀️ Sun

full sun

💧 Water

aquatic (4-6 inch standing water)

🗺️ Zones

[8,9,10,11]

🧪 Soil pH

6.0-7.5

🪴 Soil Type

silty, submerged

🚿 Drainage

Aquatic

📏 Spacing

12-18 inches

📐 Height

2-4 ft

⏱️ Maturity

180-220 days

Key:🤝 Grows well together❌ Keep apart☀️ Sun needs💧 Water🗺️ Hardiness zone

🤝 Companions (7)

🤝 Lotus

Shared aquatic habitat; complementary root depths

🤝 Marigold

Universal garden companion

🤝 Nasturtium

Attracts pollinators

🤝 Rice

Grown in same paddy conditions

🤝 Taro

Both thrive in shallow standing water

⚠️ Keep Apart (5)

⚠️ Mint

Competes aggressively

⚠️ Walnut

Juglone sensitive

⚠️ terrestrial vegetables

Requires flooded conditions

📝 Growing Notes

NOT the invasive European water chestnut (Trapa natans). A sedge that produces crisp, sweet corms. Grown in flooded conditions like rice. Corms retain crunch even after cooking.

🛒 Buy Seeds & Plants

Baker Creek Heirloom Seeds Johnny's Selected Seeds Botanical Interests True Leaf Market Burpee Territorial Seed Company

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