Zip code 23703 is in USDA hardiness zone 8b, which means plants there can survive temperatures as low as 15 to 20°F each year.

23703 is in zone 8b. Hardiness zones and growing zones are the same thing, and the terms are used interchangeably.

Use zone 8b when selecting plants for 23703. Plants rated for other zones may not survive 23703's winter temperatures. Always check plant tags and labels for zone recommendations.

While you can try plants from other zones in 23703, they may need winter protection or indoor shelter during cold spells. Focus on plants recommended for Portsmouth's climate for the best results.

For detailed growing zone information, visit our page on the growing zone for Portsmouth.

Absolutely. We offer plant recommendations for every town in the United States. We have a page on the best plants for Portsmouth that you might be interested in.

Recommended vegetables for 23703 include Beets, Bell Peppers, Broccoli, Cabbage, Carrots, Collard Greens, Cucumbers, Eggplant, Garlic, Green Beans, Kale, Lettuce, Okra, Onions, Radish, Spinach, Sweet Potatoes, Swiss Chard, Tomatoes and Zucchini.

The best fruits for 23703 include Apple, Apricot, Blackberry, Blueberry, Cherry, Fig, Grape, Kiwi, Lemon, Lime, Mulberry, Olive, Orange, Peach, Pear, Persimmon, Plum, Pomegranate, Raspberry and Strawberries.

For 23703 we recommend flowers like Azalea, Begonia, Camellia, Chrysanthemums, Clematis, Coneflower, Cosmos, Dahlia, Daphne, Daylily, Gardenia, Geranium, Hydrangea, Iris, Lilac, Marigold, Peony, Roses, Viburnum and Wisteria.

Trees for 23703's temperatures include American Holly, American Sycamore, Bald Cypress, Black Walnut, Catalpa Tree, Eastern Redbud, European Beech, Japanese Maple, Pear Tree, River Birch, Saucer Magnolia, Southern Live Oak, Southern Red Oak, Sugar Maple, Sweet Bay Magnolia, Tulip Poplar, White Ash, Witch Hazel, Yoshino Cherry and Yulan Magnolia.

We're still building our shrubs database for 23703. Our data is updated regularly with the latest USDA data, so check back often.