Skip to main content

Watson Mulch carries a variety of bagged garden products to help support healthy lawns, gardens, and landscaping projects. Our selection includes garden soil, topsoil, grass seed, seed starting mix, turf fertilizer, and other essential lawn and garden supplies for homeowners and contractors throughout Rhode Island. Whether you're starting a new planting project, improving soil conditions, or maintaining your landscape, our team can help you find the right products for your needs. Product availability may vary, so please contact us directly for current inventory, pricing, and recommendations.

1 cubic yard = approximately 100 sq. feet of coverage @ 3 inches

12 Items
Jonathan Green Black Beauty Sun & Shade Grass Seed

Jonathan Green Black Beauty Sun & Shade Grass Seed

Buy Now

Elite Sun & Shade grass seed blend by Jonathan Green. Fast 7-to-14-day germination, deep root drought tolerance, and rich dark-green turf color.

Jonathan Green Starter Fertilizer 50 lb

Jonathan Green Starter Fertilizer 50 lb

Buy Now

High-phosphorus 50 lb starter fertilizer (10-15-5) by Jonathan Green. Promotes rapid seed germination, deep root growth, and 2 months of turf feeding.

Jonathan Green Treflan Herbicide Bag 50lbs

Jonathan Green Treflan Herbicide Bag 50lbs

Buy Now

Professional-grade 40 lb Jonathan Green Treflan granular pre-emergent herbicide. Stops annual grasses and broadleaf weeds for up to 3 months.

P.R. Russel Composted Manure with Humus

P.R. Russel Composted Manure with Humus

Buy Now

Premium .75 cu. ft. Composted Manure with Humus. Organic soil conditioner that improves structure, boosts moisture retention, and feeds plants naturally.

P.R. Russel Garden Soil 1cf Bag

P.R. Russel Garden Soil 1cf Bag

Buy Now

Pre-fertilized 1 cu. ft. garden soil bags formulated with compost, topsoil, and lime. Ideal for in-ground flower beds, vegetable gardens, and plant roots.

P.R. Russel Seed Starting Mix 8qt Bag

P.R. Russel Seed Starting Mix 8qt Bag

Buy Now

Formulated for seed germination & cuttings. For use in organic growing.

P.R. Russel SunGro Peat Moss 2.2cf Bag

P.R. Russel SunGro Peat Moss 2.2cf Bag

Buy Now

Optimize garden soil with P.R. Russel SunGro Canadian Sphagnum Peat Moss. 100% organic 2.2 cu. ft. bag for moisture and aeration. Available at Watson Materials.

P.R. Russel Topsoil .75cf Bag

P.R. Russel Topsoil .75cf Bag

Buy Now

Revitalize lawns and gardens with screened P.R. Russell Topsoil. Organic, balanced moisture retention, and easy handling in a 0.75 cu. ft. bag.

PermaLoc CleanLine Aluminum Landscape Edging 1/8"x4"x8'

PermaLoc CleanLine Aluminum Landscape Edging 1/8"x4"x8'

SRW Landscape Fabric Spunbound Roll SB-3

SRW Landscape Fabric Spunbound Roll SB-3

Buy Now

Establish low-maintenance landscape systems with SRW SB-3 Spunbound Landscape Fabric. High-permeability 3 oz. geotextile. Available at Watson Materials.

WINTER DOW Calcium Flake Ice Melt 50#

WINTER DOW Calcium Flake Ice Melt 50#

Buy Now

Defeat severe winter storms fast with DOW 83-87% pure calcium chloride flakes. Melts ice down to -25°F, suppresses dust, and accelerates cold-weather concrete.

WINTER Peladow Calcium Pellets 50lb

WINTER Peladow Calcium Pellets 50lb

Buy Now

Clear heavy ice fast with 90%+ pure Peladow calcium chloride pellets. Melts down to -25°F, bores straight through ice, and leaves minimal residue.

How much do I need? Use our materials calculator.