Water Spinach Seeds – Kangkong / Ong Choy

Tender Leaves and Hollow Stems for the Kitchen Garden

Water spinach, also known as kangkong or ong choy, is a warm-season leafy vegetable valued in Asian cooking for its mild young leaves and long, hollow stems. Tender shoot tips are especially useful in cooked dishes, while the stems hold sauces and seasonings.

Grow a small, contained planting close to the kitchen and enjoy watching this vigorous leafy vegetable develop. This listing is for planting seeds, not harvested greens or live plants.

Choose Your Seed Pack

Select 25, 100, or 300 seeds from the available options.

Plant Highlights

• Common names: Water spinach, kangkong, and ong choy.
• Growth: Herbaceous, semi-aquatic plant with hollow stems.
• Kitchen use: Young leaves and tender shoots for cooked dishes.
• Growing season: Warm weather; may be grown seasonally in cooler regions or under suitable protection.
• Moisture: Consistently moist growing conditions.
• Planting methods: Direct sowing or transplanting young seedlings.

Before Planting

Check applicable seed, growing, and shipping requirements with your local agriculture authority before ordering or planting. Keep the planting contained and do not release plants, cuttings, seeds, or growing water into natural waterways.

Sowing Your Seeds

Soak seeds in water for approximately 24 hours before sowing, following the existing seed instructions. Use prepared soil or trays filled with potting mix deep enough for young roots to develop.

Sow approximately 5 mm deep and keep the growing medium moist. The listed soil temperature for germination is approximately 68°F (20°C). Avoid allowing the seedbed to dry out during establishment.

Transplanting and Spacing

Transplant seedlings when they are approximately 4–6 inches tall and have four true leaves. Handle the roots gently and water after planting.

The existing growing guidance recommends approximately 6 × 6 inch spacing in beds, or rows approximately 12 inches apart. Plants grown together can support one another and develop longer stems with less branching.

Growing in Containers

Choose a clean, roomy container suitable for edible crops and use a moisture-retentive growing medium. Leave enough space for root development and spreading stems rather than overcrowding the pot.

Check moisture frequently and keep the growing medium consistently moist. Adjust watering to temperature and exposure. Position containers where growth can be monitored and kept from escaping into drains or waterways.

Care and Harvest

Maintain warm growing conditions and monitor moisture closely while plants establish. Avoid assuming that a warm-climate perennial will survive cold weather outdoors.

Harvest tender shoot tips and young leaves for cooking. Wash harvested greens thoroughly and cook before eating. These seeds are sold for planting, not for direct consumption.