I am straw bale gardening. My zucchini are rotting at the blossom. I understand I need calcium. What brand would you recommend? First time gardening, I have tomatoes, peppers, zucchini and herbs. Cuke plant did not make it. It was in the same bale as zucchini.
Fertilizer for Zucchini
Certified GKH Gardening Expert
This article will help you with that: https://www.gardeningknowhow.com/edible/vegetables/squash/squash-blossom-end-rot-causes-and-treatment.htm
Egg shells steeped in water are a good source of calcium. You can also spray your plants with a solution of 1/2 to 1 ounce of calcium chloride or calcium nitrate to one gallon of water.