How to Grow Sticky Stylosanthes

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Sticky Stylosanthes

Stylosanthes viscosa

herb

Stylosanthes viscosa is a tropical legume native to South America, valued as a high-quality forage and pasture plant for livestock. Known for its sticky foliage (hence the common name), it is drought-tolerant and nitrogen-fixing, making it excellent for sustainable farming and soil improvement. The plant produces small purple or pink flowers followed by seed pods.

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Example Sticky Stylosanthes timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Sticky Stylosanthes

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Sticky Stylosanthes

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

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

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily; tolerates partial shade but performs best in full sun
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Water: Drought-tolerant once established; water regularly during establishment and dry seasons. Requires moderate moisture during growing season but is very efficient with water in established plantings.
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Spacing: 12-18 inches apart in rows 24-36 inches apart for pasture/forage use inches
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Days to maturity: 90-120 days to first grazing/harvest; reaches productive stage at 4-6 months
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Planting depth: 0.25-0.5 inches; plant seeds shallow or just below soil surface

Soil

Type: Well-draining sandy loam to loamy soil; tolerates poor, infertile soils well
pH: 5.5-7.0
Amendments:
Minimal amendments needed due to nitrogen-fixing ability Lime if soil is very acidic (below 5.0)

Growing Zones

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Thrives in tropical and warm subtropical zones 10-11; tolerates warm season cultivation in zone 9b with protection

10a 10b 11a 11b

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Growth Stages

1

Germination & Seedling

2-3 weeks

Seeds germinate within 7-14 days; seedlings emerge with cotyledons and small compound leaves characteristic of legumes

Keep soil consistently moist but not waterlogged. Provide full sun once emerged. Protect from strong winds during early growth.

2

Vegetative Growth

4-8 weeks

Plant develops bushy form with compound leaves becoming increasingly sticky; stems elongate and branch prolifically

Water during dry periods. Begin light grazing or cutting at 12-18 inches height to encourage branching. Monitor for pests.

3

Flowering

6-12 weeks (continuous in tropics)

Small purple, pink, or occasionally white flowers develop in racemes along stems; flowering typically continuous in tropical conditions

Maintain consistent moisture during flowering. Allow some flowering to set seed if saving seed stock. Continue light grazing rotations.

4

Seed Production

4-6 weeks

Flowers develop into distinctive legume pods containing 1-2 seeds; pods remain on plant and shatter naturally when mature

Reduce grazing pressure if seed collection desired. Collect seed pods before full shattering for seed harvesting.

5

Established Pasture/Forage Production

Ongoing (3-5 year lifespan)

Plant maintains steady growth and regrows rapidly after grazing or cutting; can be grazed continuously or rotationally

Implement rotational grazing (2-4 week intervals) for best productivity. Avoid overgrazing (leave 6-8 inches minimum). Maintain in productive state for 3-5+ years.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Allelopathic trees with heavy shade Salt-accumulating crops in saline soils

Common Pests

  • Monitor for white frothy masses on stems; biological control via parasitoid wasps; accept low populations in established pastures

  • Rarely severe; maintain plant vigor through proper grazing management and water; chemical control seldom necessary

  • Allow natural predators; if harvesting seed, remove affected pods; monitor at seed-setting stage

Uses

🍳

Livestock Forage & Pasture

Culinary

Stylosanthes viscosa is excellent nutritious fodder for cattle, sheep, goats, and other ruminants. The sticky foliage aids palatability and digestibility for livestock grazing. [source]

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Soil Improvement & Nitrogen Fixation

Household

As a nitrogen-fixing legume, it enriches soil naturally, reducing need for synthetic fertilizers. Excellent for sustainable farming, soil rehabilitation, and agroforestry systems. [source]

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Erosion Control & Land Stabilization

Wildlife

Deep root system and spreading growth habit make it effective for controlling erosion, stabilizing hillsides, and protecting degraded lands in tropical regions. [source]

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Traditional Herbal Uses

Medicinal

Used in traditional medicine in tropical regions for treating inflammation and supporting digestive health, though scientific validation is limited. [source]

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Seed Production for Pasture Development

Craft

Seeds are commercially produced and distributed for establishing productive pastures and fodder systems throughout tropical and subtropical regions. [source]

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

Harvest Tips

For pasture/forage: Begin grazing when plants reach 12-18 inches height; maintain rotational grazing every 2-4 weeks to prevent overuse and promote regrowth. Graze to 6-8 inches minimum. For seed production: Collect mature seed pods just before natural shattering (typically 3-4 months after flowering), dry thoroughly, and store in cool, dry conditions. Seeds remain viable 2-3 years.

Fun Facts

  • 🌱 The 'viscosa' in the scientific name refers to the sticky (viscous) nature of the foliage, which aids in water retention and provides an additional defense against herbivory.
  • 🌱 Stylosanthes viscosa can fix approximately 100-150 kg of nitrogen per hectare per year through its symbiotic relationship with Rhizobium bacteria in root nodules.
  • 🌱 This plant is particularly valued in tropical developing countries as a low-input, sustainable forage solution that improves both livestock productivity and soil health simultaneously.

Gardening Terms

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

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