Sprouting Red Veined Sorrel Microgreens Seeds - 500 Microgreen seeds approx. The Red Veined Sorrel microgreen also known asSpinach dock or Narrow-leaved dock is the mini sprouting version of the elegant fully grown one. This nutritious microgreen is filled with vitamins & minerals with powerful antioxidant properties. While it’s slower to sprout & has a long growing period, up to 30 days, it’s totally worth the wait. They can be grown using different methods but preferable is to use soil or coconut coir. The simplest way to do this is by filling shallow trays with soil or coconut coir, then sprinkling the seeds on top. Keep moist. Sprouting Red Veined Sorrel Microgreens Seeds - 500 Organic Microgreen Seeds Approximately