*Discount code exclusions apply. Valid on www.harrisseeds.com and the Harris Seeds app only. Cannot be applied to previously placed orders or plugs & liners. Only 1 discount code per order. Free shipping codes are good for standard shipping only - expedited shipping and shipments to AK, HI and PR excluded. Heavy and oversized freight surcharges may apply. % discount codes are not valid on live goods (plants and bulbs), biotech corn, Biostrate, Terrafibre, and Earthway seeders.