Nelson Products, Inc  
   Liquid plant food designed for indoor and outdoor use.
   http://www.grow-n-thrive.com/

Magic Minerals.  
   For quick and slow release properties. Suited for home gardens and larger agriculture applications.
   http://www.geocities.com/magicminerals

Plantgel  
   Absorbent crystal, that absorbs 300-400 times its weight in water, and has a life span of approximately 5 to 7 years.
   http://www.plantgel.com/

Gardenlink  
   Time-release fertilizer products for a healthier garden.
   http://www.gardenlink.com/

Jerry's Grow  
   Gourmet plant food for garden and houseplants.
   http://www.wundergrow.com/

Best Fertilizer  
   Fertilizer products and services for professional landscapers, golf course superintendents, and the entire turfgrass industry.
   http://www.bestfertilizer.com/

Sunniland Corporation  
   Manufacturer and distributor of lawn, garden and tree fertilizers and soil mixtures.
   http://www.sunnilandcorp.com/

Polymers, Inc.  
   Company selling water absorbent polymers for soil additives.
   http://www.watersorb.com/

Water Crystals  
   Site has water crystals available for online purchase. Water crystals significantly increase the intervals between watering.
   http://www.watercrystals.com

Monty's Plant Food  
   Offering a concentrated, food grade liquid plant fertilizer.
   http://www.montysjoyjuice.com/

Water-Keep  
   Sells polymer crystals for residential and commercial landscaping, xeriscaping, and crafts.
   http://www.water-keep.com

AquaLoc  
   Sells a polymer hydrogel, which absorbs and retains large quantities of water and nutrients when incorporated into the soil.
   http://www.aqualoc.us

Hydro-Plant  
   Sells slow-releasing, super absorbent polymers designed as a soil additive to improve the soil's water-holding capacity.
   http://www.hydro-plant.com

Osmocote  
   Manufacturer of slow-release plant food for shrubs, vegetable gardens and flower gardens. Provides gardening tips and forums.
   http://www.osmocote.com

Aquadiamonds  
   Sells a water absorbing copolymer for water-wise gardening and decorative projects.
   http://www.aquadiamonds.com

Terramoist  
   Sells bulk absorbent polymer, a product widely used in the agricultural, floral and gift industries.
   http://www.terramoist.com

Algoflash  
   Fertilizer products for garden and houseplants. Includes online ordering.
   http://www.algoflash.com/