Mike McGrath, host of "You Bet Your Garden," on WHYY and former editor of Organic Gardening magazine, reminds us that Thursday, March 17 is the day to plant peas. But as with most gardening projects, there's a bit of preparation to be done ahead of time. To give peas a chance in Princeton, here are his tips: http://www.whyy.org/91FM/ybyg/plantingpeas.html.