Arlington, VA

Arlington sits in zone 7b, with winter lows averaging 5 to 10°F. The 241-day growing season is moderate for the zone; the constraint is not cold but the unpredictability of spring. Last spring frost typically arrives around March 24, but this date masks a common Northern Virginia pattern: a warm spell in late February or early March can trigger bud break in stone fruits and early-leafing perennials, followed by a hard freeze that kills the flowers or emerging shoots. This late-frost risk is the defining challenge for fruit growers here.

Summers are humid and warm, which favors fungal diseases. The Potomac River drainage and proximity to D.C. create a heat-island effect in Arlington proper, raising nighttime temperatures and potentially stressing cool-season crops. Despite these challenges, the area reliably grows apples, pears, peaches, Japanese and European plums, cherries, and figs. The long frost-free season (241 days through November 18) supports a full crop cycle for these fruits.

The real advantage is soil. Arlington's Northern Virginia location means adequate moisture and neutral to slightly acid soil in most yards. The challenge is preparation: many lots are compacted from construction or have poor drainage. Amending soil before planting saves years of struggle.

Late-spring frosts are the most frequent crop killer in Arlington. A warm spell in February or early March wakes buds on apples, pears, and stone fruits; the subsequent frost, likely around March 24 or later, blackens the flowers. Peach and cherry buds are especially vulnerable because they break early in response to mild weather.

Summer humidity creates sustained conditions for fungal diseases. Powdery mildew, cedar-apple rust, and bacterial leaf spot thrive in the warm, moist air. Apple and pear trees often need preventive fungicide sprays from late May through August, especially in wet years.

Deer and vole damage round out the trinity of problems. Northern Virginia suburbs have abundant deer populations, and newly planted trees are prime targets for bark rubbing (bucks in fall) and bark stripping (deer in winter when food is scarce). Voles girdle roots of young trees.

Wait for the March 24 frost before planting frost-sensitive crops. Soil warms rapidly in mid-March, tempting early planting of tender annuals like basil, sweet potato slips, or tender herbs. Waiting until late March or early April, after the last frost has passed, avoids the frustration and waste of replanting after a kill frost.

Choose disease-resistant varieties. The summer humidity favors fungal pressure, particularly powdery mildew and scab. Apples such as 'Priscilla' and 'Liberty' have excellent powdery mildew and scab resistance. Peach varieties bred for disease tolerance (e.g., 'Contender') substantially reduce the summer fungicide burden.

Protect newly planted trees from deer immediately. A 6-foot rigid fence, heavy plastic tree guards, or individual netting on young trees prevents the bark damage that often kills second-year growth. Wait until trees are established (3-4 years) before relying on spacing or height alone for protection.