As of Fall 2013, there were 692 accredited RN-to-BSN programs offered throughout the United States, including more than 400 that are completely or partially available in an online format, as well as others conducted on-site at hospitals and clinics. See a partial list of RN to BSN online programs here.
Check the roots. The roots of a mature radish are roughly 1 inch (2.5 cm) in length, if not a little less. Gently scrape away a little soil just above the roots, next to the greens poking out from the soil, to check on the size. 1  You can scrape away the soil with your fingers or with a small garden trowel.
Situate the radish bed in an area that gets at least 6 hours of sun and with a soil pH of 5.9 to 6.8. Black Radish Care. Black radish care is minimal. These plants are unfussy as long as you keep the soil slightly moist. You can pick black radishes when they are 3-4 inches across.