Strawberry in Zone 3A — Great Plains

Strawberries are absolutely worth the effort in our Zone 3A gardens. There's nothing like the intense sweetness of a sun-ripened strawberry, especially after a long winter. Plus, they're incredibly versatile – fresh eating, jams, desserts, you name it. Growing your own gives you a taste that store-bought berries just can't match.

Our Plains climate can be tough with its extreme temperature swings and potential for drought, but don't let that scare you. With careful timing and a little extra attention, you can definitely enjoy a bountiful harvest within our roughly 108-day growing season. We just need to be smart about it.

Transplant your strawberry starts outdoors around mid to late May, after the risk of hard frost has passed. You'll want to harden them off first. Give them about a week of gradual exposure to the outdoors, increasing the time each day.

Space your plants about 12-18 inches apart to allow for their spreading growth habit. Keep an eye on the forecast at transplant time. Even in late May, we can sometimes get a cold snap or even hail, so be ready to cover your new transplants if needed.

Strawberries need consistent moisture, especially when they're fruiting. They aren't drought-tolerant, so you'll need to pay attention. Aim for about 1 inch of water per week, either from rainfall or irrigation.

The "finger test" is your friend here – stick your finger about 2 inches into the soil near the base of the plant. If it feels dry, it's time to water. In our climate, it's usually best to water at the base of the plant rather than overhead. Our low-to-moderate humidity means wet foliage can easily lead to fungal problems. Drip irrigation is ideal if you can swing it.

Watch for signs of underwatering, like wilting leaves or dry, crumbly soil. Overwatering can cause root rot, so look for yellowing leaves or a musty smell. A good layer of mulch, like straw or wood chips, will help retain moisture and keep the soil cool, which is especially important during our hot summers.

Strawberry pruning is pretty minimal, but it makes a difference. Throughout the growing season, you'll want to remove the runners. These are the little stems that the plant sends out to create new plants. Unless you specifically want more plants, cutting off the runners directs the plant's energy into producing more fruit.

June-bearing varieties benefit from renovation after harvest. This means mowing the foliage down to about an inch above the crown. This sounds drastic, but it encourages new growth and a better harvest next year. As first frost approaches in early September, remove any dead or diseased foliage to help prevent overwintering pests and diseases.

Expect your first harvest of juicy strawberries from early August through mid September, depending on the variety and the weather. The berries are ready when they're fully red, with no white shoulders, and have a fragrant smell. Don't pick them before they're completely ripe, as they won't ripen off the vine.

To harvest, gently pinch the stem just above the green cap, leaving the cap attached to the berry. Pick in the morning, if you can, as the berries will be cooler and have the best flavor. Keep picking regularly to encourage continued production.

As the first frost approaches in early September, harvest any remaining ripe berries. You can also try covering the plants with a frost blanket to extend the harvest a little longer, but don't expect miracles.

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

Gray Mold

• What it looks like: Fuzzy gray mold on the berries, especially after wet weather.
• What causes it: A fungal disease that thrives in humid conditions. Can be worse after hail damage.
• How to fix/prevent it: Improve air circulation by spacing plants properly. Remove infected berries promptly. Avoid overhead watering.

Slugs

• What it looks like: Irregular holes in leaves, especially low-growing plants. Silvery slime trails on leaves and soil.
• 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 is the most effective solution. Reflective tape or scarecrows can offer some deterrence.

Strawberry Crown Borer

• What it looks like: Wilting plants, stunted growth. Small, white grubs inside the crown of the plant.
• What causes it: A beetle larva that tunnels into the crown, damaging the plant.
• How to fix/prevent it: Remove and destroy infested plants. Crop rotation can help. Insecticides are rarely effective.

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.
• 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 can stress strawberry plants, making them more susceptible to diseases and pests. The variable rainfall means you need to be vigilant about watering, especially during dry spells. Hail can also damage the fruit and foliage, so consider using netting for protection.

Good companions for strawberries include lettuce and spinach, which provide ground cover and help keep the soil cool and moist. Onions and garlic can help deter pests. Thyme also repels pests and attracts beneficial insects. Borage is another great choice, as it attracts pollinators and is said to improve the flavor of 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 strawberries. Tomatoes and strawberries are also susceptible to verticillium wilt, so planting them together increases the risk of infection.