You can buy Pear grade Velesa in online stores (seed and seedlings).
$68.95 Easy Gardener Inc Fruit Tree Spike (Pack Of 160) 4140 Tree And Shrub Fertilizer
$19.97 Nature's Super Grow for Plants 32 Oz Concentrate Amazing Plant Growth, Equals to 100 Gallons! Proven to Work Wonders on All Plants, Trees and Shrubs, Flowers, Roses, Fruits
$65.16 Miracle-Gro 3002410 Shake 'N Feed Flowering Trees & Shrubs Continuous Release Plant Food
$25.50 Transplant Formula - For Use With Plants and Seeds Including; Vegetables, Herbs, Fruit Trees, Shrubs, and Perennials - Great For Container and Raised Bed Gardens - Fine Powder Supplies Trace Minerals, Soil Microbes, and Biostimulant Carbons
$9.66 Jobe’s Organics Rose Fertilizer Spikes, 3-5-3 Time Release Fertilizer for All Flowering Shrubs, 10 Spikes per Package
$4.69 Scotts Continuous Release Evergreen Flowering Tree and Shrub Fertilizer, 3-Pound (Not Sold in Pinellas County, FL)