Radishes are one of the fastest-growing vegetables and can be ready to harvest in as little as 20-30 days. They are easy to grow and come in various colors and shapes.
Arugula is a leafy green that can be harvested as baby greens in about 20-30 days. It has a peppery flavor and is perfect for salads.
Baby spinach leaves can be ready to harvest in approximately 25-30 days. It's a nutritious and versatile green.
Certain lettuce varieties, such as loose-leaf and butterhead, can be ready for harvesting in as little as 25-30 days. You can start picking leaves as soon as they reach the desired size.
Scallions are quick growers and can be harvested when they are about 20-30 days old. You can snip the green tops and use them in various dishes.
Microgreens are young, edible plants that can be ready to harvest in as little as 7-21 days, depending on the variety. Popular choices include micro arugula, micro basil, and micro kale.
Some Asian greens, like bok choy and tatsoi, can be harvested as baby greens in about 20-30 days. They have a mild, slightly spicy flavor.
Mustard greens can be grown quickly, with baby leaves ready to harvest in around 20-30 days. They have a tangy flavor and are great for salads or sautéing.