Do you have any suggestions for improving the soil in a raised bed vegetable garden?

Question: Two years ago I made a small raised bed garden approximately 10×6 ft. I regret that I filled it with several cube feet of Pro-mix soil. Last year not much grew, not even Zucchini! Do you have any suggestions for me to improve the soil? Answer: Abi Griffith, Horticulture Community Education Assistant Sorry to hear read more Do you have any suggestions for improving the soil in a raised bed vegetable garden?