Fertilizers & Amendments

Fertilizers and soil amendments support the living foundation of the garden. This collection includes practical inputs for feeding plants, building soil, supporting transplants, and helping beds stay productive through the season.

Explore garden amendments for seed starting, vegetables, herbs, flowers, containers, raised beds, and thoughtful soil care.
Gaia Green All-Purpose – Organic Fertilizer 4-4-4
Gaia Green All-Purpose 4-4-4 fertilizer bag standing upright on soil in a greenhouse setting.
Gaia Green All-Purpose – Organic Fertilizer 4-4-4
$30.95
Gaia Green Worm Castings – Organic Vermicompost
Gaia Green Worm Castings bag standing upright in soil, featuring green and brown packaging with a circular logo.
Gaia Green Worm Castings – Organic Vermicompost
$23.95
Gaia Green Power Bloom – Organic Fertilizer 2-8-4
Gaia Green Power Bloom 2-8-4 fertilizer bag standing on soil in a greenhouse.
Gaia Green Power Bloom – Organic Fertilizer 2-8-4
$33.95

FAMILY OWNED

Hand packed in Pennsylvania by our family.

LAB TESTED

Third-party tested for reliable germination.

NON-GMO

Open-pollinated varieties for home gardens & seed saving.

UNTREATED SEED

Never coated with chemical seed treatments.

Customers rate us 4.8/5 based on 307 reviews.