Blackberry Plants "Sweetie-Pie" Price Includes Four (4) Plants The price includes Four (4) "Sweetie Pie" Blackberry Plants with USPS Shipping. These are 2 inch starter plants and are shipped in 2 inch tray pots and are 2-6 inches tall. Sweetie Pie is a new thornless blackberry cultivar released by the USDA which is not only resistant to common Blackberry diseases but is now considered the sweetest most delicious tasting blackberry available. I recommend starting them in a 4 inch pot with a good organic potting soil like Fox Farm Happy Frog where the fertilizer and benificals are already mix in. See more information under Product Description.