When to Plant Tomatoes in Southeast Pennsylvania?
The last spring frost will determine when to plant tomatoes in southeast Pennsylvania. The time frame for this can range from March 30 to April 30. Southeast Pennsylvania is in US Department of Agriculture hardiness zone 6b, with a minimum temperature of 0 degrees Fahrenheit, so the best time to plant tomatoes outdoors, unprotected, is after May 1.
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About this Author
Sheri Ann Richerson has been writing professionally since 1981. She is the author of 20 books, including "The Complete Idiot's Guide To Year-Round Gardening," "101 English Garden Tips" and "101 Organic Gardening Tips." Her articles have been published in hundreds of magazines and newspapers internationally. Richerson attended Ball State University and Huntington University, where she majored in communications and minored in theatrical arts.