Soil pH That Vegetables Prefer  See Also: Testing your soil What is the best type of soil in which to grow vegetables? That's easy!  Almost all vegetables prefer well-drained soil, rich in organic matter and a little on the acid side.  In fact, the preferred pH for almost all vegetables is 5.5 to 6.5 pH. Beans - 6.0 to 6.5 Celery - 6.0 to 6.5 Cole Crops - 6.0 to 6.8 Broccoli Brussells Sprouts Cabbage Cauliflower Kohlrabi Corn - 5.8 to 6.8 Eggplant - 5.5 to 6.0 Greens - 6.0 to 6.5 Corn Salad Lettuce Swiss Chard Spinach Upland Cress Okra - 5.5 to 6.0 Onions - 5.5 to 6.5 Peas - 5.8 to 7.0 Peppers - 5.5 to 6.0 Potatoes - 4.5 to 6.5 Root Crops - 6.0 to 6.8 Beets Carrots Parsnips Radishes Rutabagas Turnips Tomatoes - 6.0 to 6.5 Vine Crops - 6.0 to 6.8 Cucumbers Melons Pumpkins Squash Return to Library - Back to Home Page