← Plant Guides

How to Grow Vietnamese White

Wikimedia Commons

Vietnamese White

Ipomoea aquatica

vegetable

Vietnamese White, also known as water spinach or morning glory spinach, is a semi-aquatic leafy green vegetable popular in Southeast Asian cuisine. It features tender, arrow-shaped leaves on hollow, succulent stems and thrives in warm, moist conditions. The plant is fast-growing and highly productive, often harvested within weeks of planting.

When should you plant Vietnamese White in your zone?

Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.

Get my Vietnamese White timeline →

Example Vietnamese White timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Vietnamese White

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Vietnamese White

    Around May 17

    ≈ 30 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Vietnamese White dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun to partial shade; 6+ hours of direct sunlight daily for optimal growth
💧
Water: Keep soil consistently moist to wet; water daily in hot weather. Can be grown in water gardens, rice paddies, or containers with constant moisture. Prefers 60-80% soil moisture.
📏
Spacing: 12 inches
📅
Days to maturity: 30-45 days to first harvest
🌱
Planting depth: 0.25-0.5 inches for seeds; transplants at soil surface

Soil

Type: Rich, moisture-retentive loamy soil or soil that can be kept consistently wet
pH: 6.0-7.0
Amendments:
Compost Well-rotted manure Peat moss or coco coir for water retention

Growing Zones

Find your zone →

Thrives in zones 10-11; grows as annual in zone 9b with warm season protection

10a 10b 11a 11b

Sign up free to see if Vietnamese White grows in your zone — and get a personalized planting timeline.

Get my Vietnamese White timeline →

Growth Stages

1

Seedling

7-10 days

Tiny cotyledons emerge, followed by first true arrow-shaped leaves. Stems are thin and tender.

Keep soil consistently moist. Provide bright light to prevent leggy growth. Thin seedlings to proper spacing.

2

Vegetative Growth

2-3 weeks

Plant develops multiple shoots with characteristic arrow-shaped leaves on hollow, succulent stems. Foliage becomes denser and more robust.

Maintain consistent moisture and warmth (70-85°F ideal). Feed with balanced fertilizer every 2-3 weeks. Pinch growing tips to encourage bushier growth.

3

Harvest Phase

4-8 weeks ongoing

Plant reaches 8-12 inches tall with abundant tender leaves and stems ready for cutting. Stems become slightly thicker but remain succulent.

Begin harvesting the top 4-6 inches of tender shoots. Regular harvesting encourages more branching and productivity. Continue watering heavily.

4

Continued Production

Throughout growing season

Plant regenerates new shoots after harvesting, maintaining tender growth throughout warm season. Foliage remains lush if water and nutrients are adequate.

Side-dress with compost monthly. Remove any flowering shoots to maintain leaf quality. Keep water supply constant.

5

Flowering

Variable

Small white or pink flowers appear on morning glory-type vines (only in long-day conditions or extended growing seasons). Plant becomes more woody.

Pinch off flowers to extend vegetative harvest period. If flowering occurs, harvest more frequently to maintain tenderness.

Companion Planting

Plan your garden →

Plant with:

Basil Cilantro Mint Garlic Onions Catfish Duckweed

Avoid planting near:

Other morning glory varieties Root crops that compete for moisture

Common Pests

  • Spray with neem oil or insecticidal soap. Rinse with strong water spray. Introduce ladybugs.

  • Increase humidity; spray with water. Use neem oil if severe. Ensure adequate moisture in growing area.

  • Yellow sticky traps. Neem oil spray. Reflective mulch. Encourage natural predators.

  • Hand-pick beetles early morning. Use row covers for young plants. Spinosad spray if severe.

  • Improve drainage slightly. Avoid overhead watering. Remove affected stems. Use fungicide if necessary.

Uses

🍳

Asian Stir-Fries & Curries

Culinary

Vietnamese White is a staple vegetable in Southeast Asian cuisine, particularly Vietnamese, Thai, and Chinese dishes. The tender leaves and hollow stems are excellent in quick stir-fries with garlic, soy sauce, and sesame oil. [source]

🍳

Fresh Greens & Salads

Culinary

Young tender leaves can be eaten raw in salads or as garnish, offering a mild, slightly sweet flavor. The nutritious greens are rich in vitamins A and C, calcium, and iron. [source]

💊

Traditional Medicine & Wellness

Medicinal

Vietnamese White has been used in traditional Asian medicine to support digestive health, boost immunity, and provide antioxidant benefits. Rich in minerals and vitamins that support overall health. [source]

🏠

Water Garden & Aquaculture Integration

Household

The plant is commonly grown in aquaponic and hydroponic systems, water gardens, and alongside fish ponds (especially in rice-fish systems). Its roots help filter and clean water while providing fresh greens. [source]

🦋

Biodiversity & Ecological Support

Wildlife

Vietnamese White supports beneficial insects including pollinators and predatory insects. Its flowers, when allowed to bloom, provide food for honeybees and other pollinators in extended growing seasons. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Begin harvesting when plants reach 8-10 inches tall, about 30-45 days after planting. Pinch or cut the top 4-6 inches of tender shoots, including leaves and young stems. Harvest regularly every 7-10 days to maintain tenderness and encourage branching. Avoid harvesting more than 1/3 of the plant at once. Morning harvest yields the crispest stems. Remove any flowering stems to redirect energy to leaf production. Can be harvested continuously throughout warm season.

Fun Facts

  • 🌱 Vietnamese White is also called 'Morning Glory Spinach' or 'Water Spinach' and is a semi-aquatic plant with hollow, spongy stems that allow it to float in water gardens.
  • 🌱 In some regions, it's considered invasive due to its vigorous growth and ability to spread rapidly, making it excellent for productive home gardens but requiring management.
  • 🌱 The plant is extremely popular in aquaponic systems where fish waste provides nutrients for the greens while the plant roots filter and clean the water—a sustainable closed-loop system.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Compost Full Sun Partial Shade
Shop Vietnamese White plants and related plants at Plant Addicts →

Join 30,000 gardeners planning their gardens with LizPlants.

Get your personalized Vietnamese White planting timeline

Tell us your zip code and we'll calculate exactly when to start Vietnamese White seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.

Get my Vietnamese White timeline →