Scotts Turf Builder Thick'R Lawn Sun & Shade grass seed + fertiliser soil improver, 4.54 kg for thicker turf

If you have patchy grass or a thin lawn that gets both sun and shaded periods, this ready-to-use 10 lb bag provides a seasonal solution designed to thicken turf with one easy application. The formula blends multiple grass varieties suitable for mixed light conditions, adds nutrients to foster greener blades, and contains soil-improving components that encourage stronger root development. One bag covers up to 1,000 square feet, and the recommended schedule is to apply once in late spring and again in late summer or early fall for best results.

How does this product make my lawn thicker?

The mix contains grass seed chosen for compatibility with sun and shade, plus fertilizer to feed new growth and a soil improver that helps seedlings establish roots. Together these elements work during germination and early growth to produce more shoots per square foot, which visually thickens the turf.

• Grass seed suitable for mixed light conditions to fill thin spots.
• Balanced fertilizer supplies nutrients for greener, fuller growth.
• Soil improver enhances root establishment and seed-to-soil contact.
• Produces up to 50% thicker lawn when used as directed and maintained.

When and how often should I apply it?

For routine use, apply one time in late spring and a second time in late summer or early fall. These windows align with active growth periods and give seedlings a favorable environment to establish before extreme heat or cold.

• Late spring and late summer/early fall applications recommended.
• Use a spreader and follow label settings for even coverage.
• Target application rate covers approximately 1,000 sq ft per 10 lb bag.
• Follow watering instructions closely during germination for best results.

What is the step-by-step application process?

Preparation, even distribution, and consistent watering are the three key steps. Mow and rake first to expose soil, broadcast the product with a spreader, then keep the surface moist until seedlings are established.

• Mow lawn to roughly 2 inches and remove debris to loosen the topsoil.
• Apply with a Scotts spreader using the label’s recommended settings.
• Water daily to keep the soil surface moist for about two weeks or until germination.
• After seedlings emerge, maintain a regular watering schedule to support growth.

Will this work in both sunny and shaded areas of my yard?

Yes — the seed selection and soil improver are formulated for mixed light environments. While no product can overcome deep, dense shade without pruning or changes to canopy cover, this blend is intended to improve thin turf that receives variable sunlight.

• Seed mix chosen to tolerate both sun and periods of shade.
• Improves seedling success in less-than-ideal light conditions.
• Not a substitute for major landscape changes in very heavy shade.
• Combining cultural practices (pruning, aeration) boosts performance.

Who is this for: Scotts Turf Builder Thick'R Lawn Sun & Shade 10 lb is aimed at homeowners and renters with thin or patchy lawns up to about 1,000 sq ft who want an easy, seasonal way to thicken turf without separate seed, fertilizer, and soil amendment purchases. It suits mixed-light yards where you need a one-package solution applied with a broadcast spreader and followed by basic watering and mowing care.