Wetting Agents

A wetting agent, or surfactant, is essential for improving the infiltration, distribution, and retention of water in Bermuda grass. The scientific rationale for using a wetting agent on Bermuda grass involves several key mechanisms:

Reduction of Surface Tension: Wetting agents reduce the surface tension of water, allowing it to spread more easily across surfaces and penetrate into the soil. In Bermuda grass, where soils can often become hydrophobic, water tends to bead up and run off rather than soaking in. By reducing surface tension, wetting agents help water to infiltrate the soil more effectively.

Improved Soil Moisture Distribution: Wetting agents promote uniform water distribution throughout the soil profile. This ensures that water reaches all parts of the root zone, reducing dry spots and ensuring consistent moisture availability for Bermuda grass.

Enhanced Water Retention: Some wetting agents contain hydrophilic (water-attracting) molecules that help retain moisture in the soil. This is particularly beneficial for Bermuda grass, which thrives in sandy soils or other substrates with low water-holding capacity. By increasing the soil’s ability to retain moisture, wetting agents can reduce the frequency of irrigation needed.

Breakdown of Soil Hydrophobicity: Certain soils, particularly those high in organic matter, can develop hydrophobic (water-repellent) properties. This is often due to the presence of organic coatings on soil particles. Wetting agents can break down these hydrophobic barriers, allowing water to penetrate the soil more effectively, which is crucial for maintaining healthy Bermuda grass.

Enhanced Nutrient Uptake: By improving water infiltration and distribution, wetting agents can also enhance the uptake of nutrients by the roots of Bermuda grass. Nutrients dissolved in water are more evenly distributed in the soil, making them more accessible to the grass.

Reduction of Runoff and Erosion: By promoting better water infiltration, wetting agents can reduce surface runoff and soil erosion. This is particularly important in maintaining the integrity of Bermuda grass lawns, especially in areas prone to heavy rainfall or irrigation.

Popular Wetting Agents




  • Dosage: 2 oz. per gallon of water
  • Frequency: Every 3 months or as needed
  • Coverage: Treats a broad range of plants, including turf, trees, shrubs, and containerized plants


  • Water Conservation: Reduces irrigation frequency
  • Ease of Use: Simple, less frequent application
  • Primary Function: Moisture retention using hydrophilic molecules



  • $89.95 per gallon


  • Initial Application: 9 oz. per gallon of water per 1,000 sq. ft.
  • Monthly Maintenance: 3 oz. per gallon of water per 1,000 sq. ft.
  • Watering Requirement: Needs thorough watering after application


  • Comprehensive Approach: Combines Hydretain, SeaXtra (seaweed extract), humic acid, and non-ionic surfactant
  • Improved Soil Health: Enhances water penetration, nutrient availability, and controls localized dry spots
  • Versatility: Suitable for a wide range of plants and specifically effective for turf management

Key Differences and Recommendations:

  1. Cost Efficiency:
    • Hydretain is cheaper per gallon, making it more cost-effective for those primarily seeking moisture retention.
  2. Application Frequency and Effort:
    • Hydretain requires less frequent application (every 3 months), which might be more convenient for users with limited time.
    • FourPlay needs an initial and then monthly application, which could be more labor-intensive.
  3. Functionality and Results:
    • Hydretain focuses on reducing water usage and maintaining soil moisture.
    • FourPlay provides a more comprehensive solution, improving water penetration, nutrient uptake, and overall soil health, which can lead to healthier and more resilient Bermuda grass.


Choose Hydretain if:

  • You want a cost-effective solution primarily for reducing irrigation frequency.
  • You prefer less frequent application and ease of use.

Choose FourPlay if:

  • You are looking for a holistic solution that not only retains moisture but also improves soil health, nutrient uptake, and addresses localized dry spots.
  • You are willing to invest more time and money for potentially better overall results in turf health and resilience.

In summary, Hydretain is a great option for straightforward moisture retention and cost savings, while FourPlay offers enhanced benefits for comprehensive turf and soil management, justifying its higher cost and more frequent application requirements.