Kangkong Seeds

Ipomoea Aquatica
Regular price $6.99
Regular price $9.99 Sale price $6.99
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About

Kangkong (Ipomoea Aquatica) is an extremely rapidly growing aquatic annual vegetable from Southeast and South Asia. It will be known by many different names, depending on where you buy its seeds: ong choy in China, rau muống in Vietnam, and water spinach in English-speaking countries. It produceі hollow stems and arrow-shaped leaves, having a subtle sweet taste that can be used for various stir-fries and soups much more successfully than regular Spinach, as it keeps its taste and texture under the heat. It grows well outdoors in USDA Zones 8–12.

Quick Facts

Life Cycle
Life Cycle Annual
USDA Zones
USDA Zones 09–10
Light Requirements
Light Requirements Full sun
Germination Time
Germination Time 5-14 days
Stratification
Stratification Not required
Spacing
Spacing 6+ inches
Sowing Method
Sowing Method Indoors & Outdoors
Soil
Soil Well-drained; Moist
Flowering Period
Flowering Period -
Water Requirements
Water Requirements Moderate (regular watering)
Maturity Time
Maturity Time 30-45 days
Growing Habit
Growing Habit Climbing/Vine

How to Grow & Harvest

Sowing & Timing

Before planting the Kangkong seeds, soak them overnight to get germination done in 7 days instead of waiting 3 weeks. Then plant seeds  1 inch deep with a 6-inch distance between each plant. The soil temperature should be above 68°F. If you start Kangkong seeds indoors, you may find it useful to use a heating mat.

Soil, Watering & Fertilization

Ipomoea Aquatica plants must have at least 6 hours of full sunlight otherwise, their stems grow tall and leggy and cannot support themselves. Water Spinach seeds require a well-draining but constantly moist soil. If you let the soil dry out between watering, you lose its soft texture. Loamy soils are preferable, and for sandy soils, add compost to make them fertile.

Growth & Harvest

Once established, Water Spinach grows fast — you can harvest the outer stalks and leaves regularly starting around 21–30 days; actually, the more you cut, the more the plant produces. Apply balanced fertilizer, particularly the one with nitrogen, every fortnight. Prune the growing tips for bushier plants. In containers, monitor moisture levels daily, especially during hot weather; pots tend to dry up quickly compared to beds.

FAQ

Are the Kangkong seeds GMO-free?

Yes. KVITER Kangkong seeds for sale are heirloom and non-GMO. They are also untreated, without any coatings and chemical priming. 

Is it possible to plant Kangkong in containers?

Yes. A big pot, at least 12 inches deep, will be perfect. Water the soil regularly and keep it always moist. This is very important since this is the only thing that container-grown Kangkong will not tolerate.

How do I use Kangkong in the kitchen?

The stems and leaves are both edible. From stir-fries to soups, Kong Xin Cai suits global cuisines. Chefs rely on Kang Kong seed for fresh supply, while fans of heirloom vegetable seeds enjoy its classic flavor. It's an ideal veggies seeds for outdoor gardening. 

What are good companion plants for Kangkong?

Basil and cilantro work well nearby — they share the same heat and moisture preferences. Taller crops like tomatoes or trellised beans can provide afternoon shade in very hot climates, which actually extends the harvest window. Avoid planting next to anything that prefers dry soil, like lavender or rosemary.