What soil amendments are best for growing heirloom tomatoes?
I'm always looking for ways to improve soil quality in my urban garden, especially for my heirloom tomato plants. My garden soil has a decent texture, but I feel it could use some enhancements to boost nutrient levels. I've done some preliminary research into organic amendments and have tried incorporating compost, but I’m curious if there are other specific amendments that promote robust growth in heirloom varieties. Given my background as an architect, I like to approach this analytically, considering both the short- and long-term effects. Can anyone share their best practices for amending soil specifically for heirloom tomatoes? What products or techniques have yielded the best results in your experience?