Additives & Conditioners

This natural re-mineralizer helps grow stronger plants and better tasting crops.

Made from 100% recycled glass to significantly improve aeration and drainage.

Contains pure, naturally decomposed forest humus — NO fillers or additives.

Extra-big chunks of perlite provide the best drainage for superior root aeration.

Contains NO chemicals, NO fillers and NO tricks — just natural goodness!

Black Owl Biochar contains no less than 70% premium carbon for exceptional results.

Contains NO GMOs, pathogens, growth hormones, or synthetic anything!

Contains no toxic chemicals, artificial ingredients, unknown fillers or waste products.

Perfect for terrariums! Charcoal removes odors and improves aeration.

100% Pure. You need only use a small amount around vegetables and flowers.

Perma-Guard is a pure, food grade diatomaceous earth (fresh water type).

Provides organic matter and natural nutrients for flowers and vegetables.

A 100% vegan plant food made from the excrement and exoskeletons of insects.

Rich in NPK and micro-nutrients, yet completely biodegradable — no residues!

Combines sustainably harvested ocean by-products with aged humus.

The exact same product as Foxfarm's Big & Chunky perlite — only cheaper!

Neem cake is what remains after the seeds have been processed for oil.

No fishy odor! Slow-release nutrients grow stronger, more nutritious vegetables.

Contains NO sewage sludge or bio-solids that are often found in commercial brands.

Contains up to 39% calcium (Ca), plus many other important plant nutrients.

Screened for uniformity, this sterile medium is prized for its outstanding characteristics.

Super coarse-grade contains lots of nooks and crannies for water and air space.

Perfect for starting seeds, rooting cuttings or adding to any growing medium.

Formed from molten lava, pumice will improve aeration and drainage for plant roots.

Savvy growers know redworm castings to be rich in nutrients and beneficial microbes.

These super absorbent “crystals” trap moisture that would normally be lost.

Improves aeration and helps support robust root structure. Asbestos free!

Use to root cuttings or to offer any plant more air capacity for healthy growth.

A beautiful option to top-dress potted plants or small xeriscape gardens.