Q.Raised garden bed.
I made two garden beds (4×4 and 3×5) and filled up with Kellogs all natural organic garden soil. Now I read that this soil is to be mixed with regular soil and not directly used for beds. I see after 4 weeks that my blue beans and zucchini plant’s leaves are turning yellow. I had noticed heavy forest products with this soil earlier, but my local home depot gardening expert said, this is the soil that I should be using for beds. What can i do now, since i feel it may not be the right soil for my beds.
Yes, the product you used is considered to be an organic amendment to your garden soil. It is likely very rich in nitrogen which is most likely the reason for your yellowing plants. Too much nitrogen can also lead to lush plants but no vegetables forming.
I do want to say, your raised beds look great! Don't get frustrated, you can leave the garden as is and see how it goes. I would suggest working in some Bone Meal, which is phosphorous and will help balance out the nitrogen.
The other option is lift your plants, work in top soil and replant.
Try not to get frustrated as even an experienced gardener has issues each season!