Hamburg

Hamburg (root) parsley (Petroselinum crispum tuberosum) has white roots that look like young parsnips and are used similarly in cooking. It looks similar to Italian parsley, and although officially a biennial, it is usually grown as an annual. The roots are typically harvested in late fall, after a growing season of about 3 to 4 months, and can be left in the ground until needed since they are frost-tolerant.