Get your soil tested for pH, phosphorus, potassium, organic matter, and micro-nutrients, along with an annual nitrogen measurement.You'll get a sample bag, postage paid lab mailer, pre-paid lab fees, instructions, and customer care card, and once the tests are done, you'll receive your results with customized product recommendations. Choose in-store pickup to dodge the $5.99 shipping fee, or get free shipping with orders of $35 or more by signing up to MyLowe's Rewards. (It's free to join.) Buy Now at Lowe's