Strawberry in Zone 6B — Great Plains

Strawberries, sun-ripened and bursting with flavor, are a true taste of summer on the Plains. They're fantastic fresh, in jams, or frozen for a taste of sunshine during our long winters. Plus, there's nothing quite like the satisfaction of picking your own berries right in your backyard.

Our region's extreme weather can be a challenge, with temperature swings and the occasional hail risk. But with careful timing and a bit of planning, you can absolutely grow delicious strawberries during our 198-day growing season.

Transplant your strawberry plants outdoors from late March through mid April. Whether you're starting with bare-root plants or potted starts from a local nursery, make sure the soil is workable and not too wet.

Before planting, harden off your strawberry starts by gradually exposing them to outdoor conditions for about a week. This helps them adjust to the wind and temperature swings that are common this time of year. Space plants 12-18 inches apart to allow for spreading. Keep an eye on the forecast for any late frosts and be prepared to cover your plants if needed.

Consistent moisture is key for juicy strawberries, especially when they're fruiting. In our Plains climate, that means paying close attention to your watering schedule. While we don't have the humidity of other regions, our hot summers can dry things out quickly, and rainfall is often unpredictable.

During the growing season, aim to give your strawberry plants about 1-2 inches of water per week, either from rainfall or irrigation. Stick your finger about two inches deep into the soil; if it feels dry, it's time to water. Drip irrigation is ideal, as it delivers water directly to the roots and helps prevent fungal diseases that can pop up with wet foliage.

Signs of underwatering include wilting leaves and dry, crumbly soil. Overwatering, on the other hand, can lead to root rot and yellowing leaves. Mulch heavily around your strawberry plants with straw or wood chips to help retain moisture and suppress weeds.

Strawberry plants need minimal pruning, but a little attention goes a long way. Throughout the growing season, remove any runners that your plants produce, unless you want them to spread and create new plants. Pinching off these runners directs the plant's energy towards fruit production.

For June-bearing varieties, renovate your strawberry bed after harvest by mowing or cutting back the foliage to about an inch above the crown. This encourages new growth and sets the plants up for next year's harvest. As the first frost approaches in late October, remove any dead or diseased leaves to prevent overwintering pests and diseases.

Get ready for your first strawberry harvest from late June through early August. The exact timing will depend on the variety you're growing and the weather we've had. Look for berries that are fully red, plump, and fragrant, with no white shoulders.

Gently twist or snip the stem just above the green cap to harvest the berries. Picking in the morning, after the dew has dried, will give you the best flavor. Keep harvesting regularly as the berries ripen to encourage continued production.

As we approach the first frost in late October, harvest any remaining ripe berries and consider covering your plants with a layer of straw for added winter protection.

Here are some common problems you might encounter with strawberries on the Great Plains:

• Gray Mold
• What it looks like: Fuzzy gray mold on berries, especially during wet periods.
• What causes it: Fungal disease that thrives in humid conditions and poor air circulation.
• How to fix/prevent it: Remove infected berries promptly. Improve air circulation by spacing plants properly. Avoid overhead watering.
• Slugs
• What it looks like: Irregular holes in leaves, especially low-growing plants. Silvery slime trails on leaves and soil. Damage worse at night and in wet weather.
• What causes it: Gastropods that feed at night in moist conditions. Hide under mulch, boards, and debris during the day.
• How to fix/prevent it: Beer traps (shallow dish of beer sunk into soil). Iron phosphate bait (pet-safe). Remove hiding spots. Water in morning so soil surface dries by evening. Copper tape around beds. Diatomaceous earth around plants.
• Birds
• What it looks like: Missing berries, pecked fruit.
• What causes it: Birds love strawberries!
• How to fix/prevent it: Netting over your strawberry patch is the most effective solution. Reflective tape or scarecrows can also help deter them.
• Strawberry Crown Borer
• What it looks like: Wilting plants, stunted growth. Small, white grubs inside the crown of the plant.
• What causes it: Beetles lay eggs in the crown, and the larvae feed on the plant tissue.
• How to fix/prevent it: Remove and destroy infested plants. Rotate crops. Beneficial nematodes can help control the larvae in the soil.
• Verticillium Wilt
• What it looks like: Lower leaves yellow, wilt, and die, progressing upward. One side of plant may be affected first. Brown streaks in stem cross-section.
• What causes it: Soil-borne fungus that persists for years. Cooler soil temperatures favor it (unlike fusarium). Wide host range.
• How to fix/prevent it: No cure — remove infected plants. Rotate with non-susceptible crops (corn, grains). Solarize soil. Plant resistant varieties (look for 'V' on labels).

Great Plains Specific Challenges: Our hot summers and variable rainfall can stress strawberry plants, making them more susceptible to pests and diseases. Consistent watering, good air circulation, and prompt removal of any infected foliage are essential for success. Keep an eye on the forecast and be prepared to protect your plants from extreme temperature swings and hail.

Companion planting can give your strawberries a boost. Plant lettuce and spinach nearby, as they provide ground cover and help retain moisture. Onions and garlic deter pests, while thyme can help repel strawberry crown borers. Borage is a great companion because it attracts beneficial insects that pollinate your strawberries.

Avoid planting strawberries near broccoli, cauliflower, peppers, and tomatoes. These plants can compete for nutrients and may also attract pests or diseases that can affect your strawberries.