Growing Strawberries

Matted Row System: Plants are spaced 18-24 inches apart in rows 3-4 feet apart. Runners are allowed to root freely, creating a dense mat of plants. This low-maintenance system works well for June-bearers in larger spaces. It produces the most berries per area but fruit size declines as the mat becomes crowded - renovate annually by mowing and thinning.

Raised Bed / Hill System: Plants are spaced 12-15 inches apart in raised beds or plastic-mulched hills. All runners are removed, directing energy into larger berries and higher per-plant yields. This is the commercial standard and best for everbearing varieties. Containers: Strawberries grow well in pots, grow bags, and vertical planters. Use at least 3-gallon containers per plant with excellent drainage. Container growing avoids soil-borne diseases but requires more frequent watering.

Strawberries need full sun (6-8 hours minimum), excellent drainage, and slightly acidic soil (pH 5.5-6.5). Avoid locations where tomatoes, peppers, potatoes, or eggplant grew in the past 3 years - these nightshade crops harbor Verticillium wilt, which devastates strawberries. Also avoid areas with heavy grass - white grubs (grass larvae) feed on strawberry roots.

Prepare beds by incorporating 2-4 inches of compost and a balanced organic fertilizer. If your soil is alkaline, add sulfur to lower pH. For raised beds, use a mix of topsoil, compost, and perlite for excellent drainage. Install drip irrigation before planting - overhead watering promotes fungal diseases on fruit and foliage.

Plant strawberries so the crown (where leaves emerge from the root system) sits exactly at soil level. Too deep - the crown rots. Too shallow - roots dry out and the plant dies. This is the most common planting mistake and the primary cause of establishment failure.

For bare-root plants (the most common form sold), soak roots in water for 30 minutes before planting. Spread roots in a fan shape in the planting hole. For plug plants (potted), remove from the container and plant at the same depth. Space 12-18 inches apart depending on the system. Water deeply immediately after planting. Apply 2-3 inches of straw mulch between plants (the origin of the name "strawberry") - this keeps fruit clean, retains moisture, suppresses weeds, and insulates roots.

June-bearing varieties: Remove ALL flowers during the first year. This feels painful, but it redirects energy into establishing a strong root system and runner production. The result is a dramatically larger, more productive plant in year two. Everbearing/day-neutral varieties: Remove flowers until mid-June, then allow fruiting. You will get a light fall crop in the first year and full production the following spring.

Water 1-1.5 inches per week - consistent moisture is critical for fruit quality. Strawberries have shallow roots and dry out quickly, especially in raised beds and containers. Fertilize lightly every 4-6 weeks with a balanced fertilizer. Avoid heavy nitrogen, which promotes excessive leaf growth and soft, disease-prone berries.

Runners are horizontal stems that extend from the mother plant and produce new daughter plants at their tips. In the matted row system, allow the first 4-6 runners per plant to root, then remove subsequent runners. Space daughter plants 6-8 inches apart for optimal production. Too many runners create overcrowded mats with small berries.

In the hill system, remove all runners as they appear to focus plant energy on fruit production. Check weekly during the growing season - runners grow fast and can root within days. Removed runners can be potted up to propagate new plants for expanding your planting or sharing with other growers. A single mother plant can produce 30-50 runners per season.

Harvest strawberries when they are fully red with no white or green tips - unlike many fruits, strawberries do not continue to ripen after picking. Pick in the morning when berries are cool and firm. Grasp the stem just above the berry and pinch - do not pull the berry, which can damage the plant and bruise the fruit.

Handle gently - strawberries bruise extremely easily. Place in shallow containers (no more than 2-3 layers deep) to prevent crushing. Refrigerate immediately; unwashed berries keep 3-5 days at 34-38°F. Wash just before eating, not before storage (moisture promotes mold). For u-pick operations, provide shallow containers and instruct customers on proper picking technique - customer-picked fruit sustains more damage.

June-bearing renovation (after harvest): Mow or cut foliage to 1 inch above the crown. Thin plants to 6-8 inches apart, removing oldest plants and keeping young runners. Apply a balanced fertilizer. This annual renovation rejuvenates the bed and maintains productivity for 3-5 years.

Winter protection: In zones 6 and colder, mulch plants with 4-6 inches of clean straw after the first hard frost (below 25°F). Remove mulch gradually in spring as new growth appears. In mild climates (zones 8+), winter mulch is not needed but maintaining straw mulch year-round for fruit quality and weed suppression is beneficial. Replace the entire strawberry planting every 3-5 years when productivity declines.