Imagine stepping outside on a sunny Seattle morning and plucking a juicy, sun-ripened strawberry straight from your own garden. It's a taste of summer that's surprisingly achievable, even in our famously unpredictable climate. Let's dive into the wonderful world of growing strawberries in Seattle, turning your garden into a berry-filled paradise.
Choosing the Right Strawberry Variety for Seattle's Climate
Selecting the right strawberry variety is the first, and arguably most crucial, step to successful strawberry cultivation in Seattle. Our mild, wet winters and relatively cool summers demand specific cultivars that can thrive in these conditions. Not all strawberries are created equal, and understanding the different types will significantly increase your chances of a bountiful harvest.
June-Bearing Strawberries
June-bearing strawberries, as the name suggests, produce their entire crop within a concentrated period, typically lasting 2-3 weeks in June. These varieties are known for their large, flavorful berries, making them ideal for jams, preserves, and fresh eating. However, the concentrated harvest period requires you to be ready to process or consume a large quantity of strawberries at once. Popular June-bearing varieties that perform well in Seattle include:
- 'Hood': A classic Northwest variety prized for its exceptional flavor and disease resistance. It's a reliable choice for Seattle gardens.
- 'Puget Reliance': Another excellent choice for our region, 'Puget Reliance' offers good disease resistance and produces large, sweet berries.
- 'Chandler': While often grown in warmer climates, 'Chandler' can perform well in protected Seattle gardens with proper care and early planting.
When considering June-bearing varieties, remember that they require ample sunlight and well-drained soil. Prepare your garden bed in the fall, incorporating plenty of compost to improve soil fertility and drainage. Consistent watering is crucial during fruit development.
Everbearing Strawberries
Everbearing strawberries, on the other hand, produce two or three crops throughout the growing season – one in the spring, another in the late summer or early fall, and sometimes a smaller crop in between. While the individual berries might be slightly smaller than June-bearing varieties, the extended harvest period is a major advantage for gardeners who prefer a steady supply of fresh strawberries over a longer duration. Good choices for Seattle growing include:
- 'Seascape': Known for its disease resistance and consistent yields, 'Seascape' is a reliable everbearing variety for Seattle gardens.
- 'Albion': Another popular choice, 'Albion' produces firm, flavorful berries and is relatively tolerant of common strawberry diseases.
- 'Ozark Beauty': This variety is adaptable and produces good crops of medium-sized strawberries.
Everbearing strawberries benefit from regular feeding with a balanced fertilizer throughout the growing season. Removing the first flush of blossoms in the spring can encourage stronger growth and larger yields later in the year. These varieties are also well-suited for container gardening.
Day-Neutral Strawberries
Day-neutral strawberries are similar to everbearing varieties in that they produce fruit throughout the growing season, regardless of day length. However, they tend to be more sensitive to temperature fluctuations and require consistent care to maintain continuous production. They often do best with row covers or protection from extreme heat. If you are committed to consistent watering, fertilizing and monitoring soil temperature, these may be a great option! Some good options are:
- 'Tristar': This is an excellent choice for day-neutral strawberries, yielding medium-sized, flavorful fruit.
- 'San Andreas': Another good selection, well known for it's high yields and great flavor.
Key Takeaway: Consider your personal preferences when selecting a strawberry variety. If you want a large quantity of strawberries for preserving, June-bearing varieties are a great choice. If you prefer a steady supply of fresh strawberries throughout the season, everbearing or day-neutral varieties are a better fit. Don't be afraid to experiment with different varieties to find the ones that thrive best in your specific garden conditions.
Preparing Your Garden for Seattle Strawberries
Proper soil preparation is essential for healthy strawberry plants and a bountiful harvest. Strawberries thrive in well-drained, slightly acidic soil with a p H between 5.5 and
6.5. Before planting, amend your soil with plenty of organic matter, such as compost or well-rotted manure, to improve soil fertility, drainage, and water retention. This is especially important in Seattle, where our heavy clay soils can easily become waterlogged.
Soil Testing
A soil test is highly recommended to determine the p H and nutrient levels of your soil. You can purchase a soil test kit at your local garden center or submit a soil sample to a professional testing lab. The results will help you determine if your soil needs any amendments to achieve the optimal growing conditions for strawberries.
Sunlight
Strawberries require at least 6-8 hours of direct sunlight per day to produce abundant fruit. Choose a planting location that receives ample sunlight, especially during the morning hours. Morning sun helps to dry the foliage quickly, reducing the risk of fungal diseases, which are common in Seattle's damp climate.
Drainage
Good drainage is crucial for preventing root rot, a common problem in strawberry plants. If your soil is heavy clay, consider planting your strawberries in raised beds or mounds to improve drainage. You can also amend the soil with coarse sand or perlite to improve its structure and drainage capabilities.
Planting and Caring for Your Seattle Strawberry Plants
The best time to plant strawberries in Seattle is in early spring (March-April) or early fall (September-October). Planting during these periods allows the plants to establish strong root systems before the onset of extreme temperatures.
Planting Bare-Root Strawberries
Bare-root strawberry plants are typically available in early spring. Before planting, soak the roots in water for about an hour to rehydrate them. Dig a hole large enough to accommodate the root system, ensuring that the crown of the plant (the point where the roots meet the stem) is at soil level. Spread the roots out in the hole and backfill with soil, gently firming it around the plant. Water thoroughly after planting.
Planting Potted Strawberries
Potted strawberry plants can be planted at any time during the growing season, as long as the soil is not frozen. Gently remove the plant from its container and loosen the roots before planting. Dig a hole slightly larger than the root ball and place the plant in the hole, ensuring that the top of the root ball is level with the surrounding soil. Backfill with soil and water thoroughly.
Watering
Strawberries require consistent watering, especially during fruit development. Water deeply and regularly, aiming for about 1 inch of water per week. Avoid overhead watering, as this can increase the risk of fungal diseases. Drip irrigation or soaker hoses are excellent options for delivering water directly to the roots.
Fertilizing
Feed your strawberry plants with a balanced fertilizer in early spring and again after the first harvest. Choose a fertilizer that is specifically formulated for berries or fruits and follow the instructions on the label. Avoid over-fertilizing, as this can lead to excessive foliage growth at the expense of fruit production.
Mulching
Mulching around your strawberry plants helps to conserve moisture, suppress weeds, and protect the berries from soil contact. Use organic mulches such as straw, pine needles, or wood chips. Apply a 2-3 inch layer of mulch around the plants, keeping it away from the crown to prevent rot.
Protecting Your Strawberries from Pests and Diseases in Seattle
Seattle's damp climate can create favorable conditions for various pests and diseases that can affect strawberry plants. Implementing preventative measures and identifying problems early can help you protect your crop.
Common Pests
- Slugs and Snails: These slimy pests can cause significant damage to strawberry leaves and berries. Use slug and snail bait, copper tape around your raised beds, or handpick them off the plants in the evening.
- Birds: Birds love to feast on ripe strawberries. Cover your plants with netting or use bird repellents to protect your crop.
- Spider Mites: These tiny pests suck the sap from strawberry leaves, causing them to become mottled and discolored. Spray the plants with insecticidal soap or horticultural oil to control spider mite infestations.
Common Diseases
- Gray Mold (Botrytis): This fungal disease can cause soft, gray mold on strawberry blossoms, leaves, and berries. Improve air circulation by spacing plants properly and pruning away dead or diseased foliage. Apply a fungicide specifically labeled for gray mold if necessary.
- Leaf Spot: This fungal disease causes small, circular spots on strawberry leaves. Remove and destroy infected leaves to prevent the spread of the disease. Apply a fungicide if necessary.
- Root Rot: Poor drainage can lead to root rot, a fungal disease that causes the roots to decay. Improve drainage by planting in raised beds or amending the soil with organic matter. Avoid overwatering.
Harvesting Your Seattle Strawberries
Harvest your strawberries when they are fully ripe and have a deep red color. Gently twist or cut the berries from the plant, leaving the green cap and a short stem attached. Harvest in the morning, after the dew has dried, for the best flavor and shelf life.
Tips for Harvesting
- Harvest regularly, every 2-3 days, to encourage continued fruit production.
- Handle the berries gently to avoid bruising.
- Store harvested strawberries in the refrigerator for up to a week.
Growing strawberries in Seattle can be a rewarding experience. With careful variety selection, proper soil preparation, and diligent care, you can enjoy a bountiful harvest of delicious, homegrown strawberries. Embrace the challenge, and soon you'll be savoring the taste of summer straight from your own backyard. Now, get out there and start growing your own Seattle strawberries!