Open menu Menu Login My cart (0) Soil Mixes Home / Collections / Soil Mixes Quality soil mixes are ideal for establishing healthy transplants and container gardening. When starting seedlings, it is always best to start them in a seed starting mix rich in nutrients. This allows the young plants to easily punch through the lighter soil mix and quickly ... Show More Sort by Name: A-Z Featured Best sellers first Price: low to high Price: high to low Name: Z-A Name: A-Z Oldest to newest Newest to oldest Filter by Availability: All Availability: All Availability: Ready to ship Organic Mechanics Biochar Blend Soil Additive / Fertilizer starting at $38.95 Organic Mechanics Potting Mix 2 cu. Ft. starting at $35.95 Organic Mechanics Seed Starter Mix 16 qt. starting at $19.50 Seed Starter Mix 20 Qt Bag starting at $19.75 Seed Starter Mix 8 Qt Bag starting at $11.50 Soilless Mix Jiffy Mix 2.8 cu. ft. starting at $29.95 `); Join our e-mail list Sign up for money-saving special offers, growing tips and new product releases! My email address: Why Choose Harris Seeds? Harris Seeds is a privately owned seed company with a long tradition of supplying the finest vegetable seeds, flower seeds, plants and supplies to growers and gardeners since 1879. The Harris Seeds team includes local growers and garden enthusiasts, whose invaluable knowledge and expertise allow us to better serve you. Every Harris Seeds employee shares a common goal – a commitment to your success. Get to Know Us About Harris Seeds Reviews & Ratings Our Blog Careers Wholesale More Info FAQs Shipping Discounts and Credit Terms Downloadable Forms Refund and Return Policies Cookie Policy Privacy Policy Quick Order (Order by SKU) Resources and Guides Donation Requests Gift Cards Order Free Catalogs Keep in Touch Facebook Twitter Pinterest Instagram YouTube Contact Us Call Center Hours M-F: 8:00 am - 5:00 pm ET Phone: 800.544.7938 Fax: 877.892.9197 Email Us > Contact Your Account Rep > 355 Paul Rd. P.O. Box 24966 Rochester , NY 14624 © 2021 Harris Seeds