Growing Wolfberry

My wolfberry plant has grown for more than 5 years, every year it has a lot of flowers, but only produces 10 or fewer berries. I wonder if it needs some special fertilizer?

Wolfberry likes alkaline soil. Perhaps your soil is acid which means the plant cannot take up nutrients even if the nutrients are there. Try putting a mulch of oyster shell chicken grit around the plant and fertilize with a fertilizer that has a large last number as in 6-8-15. Fertilizers also tend to acidify the soil, because an awful lot of plants like slightly acidic soil-so do use some liming as with the oyster shell. You might also like to plant another plant, because most plants set more fruit if they are cross-fertilized with pollen from another, different plant (from the same species, of course)