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Mount Washington Arboretum · Baltimore, MD

Strawberry

Fragaria × ananassa

Perennial

Care at a glance

☀️ LightFull sun (6–8 hrs)
💧 WaterRegular; 1–1.5 inches per week, consistent moisture
📅 Days to maturity60
🌀 LifecyclePerennial

Where is it growing?

2026Herb 1
2026Herb 2
2026Herb 3

About this plant

Strawberry is a low-growing perennial herb producing sweet, red berries prized for fresh eating, jams, and desserts. Gardeners grow strawberries for their reliable yields, ease of care, and the superior flavour of homegrown fruit compared to store-bought. They are popular in community gardens because they produce prolifically in small spaces and attract pollinators.

Germination

Strawberry seeds require a period of cold stratification to break dormancy. Chill seeds in moist sand or paper towels at 35–40°F for 2–4 weeks before sowing. Sow on the surface of moist seed-starting mix under light, as seeds need light to germinate. Keep soil at 65–75°F; germination occurs in 7–14 days. Seeds can be challenging and slow to sprout, so many gardeners prefer buying transplants.

How to plant

Start seeds indoors 8–10 weeks before the last spring frost, or plant transplants in early spring (March–April in zone 7) or early fall (August–September). Space plants 12–18 inches apart in raised beds or rows, setting the crown at soil level—too deep risks rot, too shallow exposes roots. Strawberries prefer well-draining soil rich in organic matter. Direct seeding outdoors is not practical due to slow germination; transplants are strongly recommended.

Growing tips

Water consistently to keep soil evenly moist but not waterlogged; drip irrigation or soaker hoses work best. Fertilize monthly with balanced fertilizer or compost. Pinch off runner shoots in the first year to encourage crown development and larger berries; in subsequent years, allow runners to root to create new plants. Remove dead leaves and mulch lightly with straw in late fall for winter protection. Watch for slugs, spider mites, and powdery mildew; remove affected leaves and improve air circulation.

Harvesting

Pick berries when fully red and ripe, usually June–July for spring plantings. Ripe berries come off easily with a slight twist. Harvest regularly—every 2–3 days during peak season—to encourage continued production and prevent rot. Strawberries do not ripen after picking, so harvest only fully coloured fruit. Store unwashed berries in the refrigerator in a breathable container for up to 5 days, or freeze for longer storage.

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