Vegetables are not difficult to grow, but they do require more attention than most ornamental plants. You may be surprised by how much food you can grow in a small space.
A well-tended vegetable garden can save money and provide fresh, nutritious produce. You will know how your food was grown and what is on it and in it. With planning, it is possible to harvest fresh vegetables for much of the year.
Oregon’s coastal climate presents some challenges. The following tips can help you succeed. Some crops may only get one good chance each year, so it’s important to give them the right conditions from the start.
Choose the best garden site
Vegetables need at least 8 hours of sun each day; more sun is better. A southwest exposure is ideal.
If your garden site is windy, you may need to build windbreaks. Most vegetables do not thrive in salty or windy conditions. When laying out your garden, avoid placing it near buildings or trees that may shade plants during the day. Choose the warmest, most protected location available.
Consider raised beds
Raised beds can be simple earth mounds, wood frames, or other materials that hold soil in place. They do not need to be elaborate.
Benefits of raised beds include:
- Soil warms and dries faster in spring
- Fertilizers and soil amendments stay where plants need them
- Soil is not compacted by foot traffic
- Plants can be spaced more closely
- Crop rotation is easier to manage
Prepare and care for your soil
Healthy soil feeds and supports healthy plants. Improve your soil by adding good compost or well-rotted manure.
Most vegetables prefer a soil pH between 6.0 and 6.8. A simple soil test can help you determine pH. Add lime if needed.
Organic fertilizers are recommended because they release nutrients slowly and provide a steady food source for plants. Work fertilizers and soil amendments into the soil several weeks before planting.
In early spring, when soils are cold, organic fertilizers may not release nutrients quickly enough. A liquid fertilizer can help plants get off to a strong start or provide a boost if plants look pale or slow-growing. Once weather improves, plants should be green and growing steadily.
Use season extension and protection
Cold rain, wind, and cool nights can keep coastal soils cold well into summer. Protective structures can make a big difference.
Cloches and greenhouses
A cloche is a protective cover, often made of clear plastic, that shields plants from wind, rain, and hail while creating a warmer growing space. In coastal areas, cloches may be essential for crops such as tomatoes, cucumbers, basil, and peppers. They can also protect lettuce and salad greens from wind and hail damage.
Cloches can extend the growing season into spring and fall, and sometimes winter. For gardeners close to the ocean, they may be the only way to grow vegetables successfully.
If space allows, a greenhouse is an excellent investment. It expands the variety of crops you can grow and provides a place to start seeds and garden during wet weather.
Warming the soil
Placing plastic directly on the soil can help warm it earlier in the season:
- Black plastic warms soil and suppresses weeds
- Clear plastic warms soil more effectively
- IRT (infrared transmission) plastic warms soil while blocking weeds
Warmer soil helps organic fertilizers work more effectively and keeps plants healthier during cool nights.
Mulch carefully
Organic mulches help:
- Suppress weeds
- Reduce water loss
- Keep soil temperatures even
However, in spring, cool soil can slow plant growth. Wait until mid-June before applying mulch. Organic mulches can also provide hiding places for slugs and other pests.
Provide consistent irrigation
Vegetables need regular moisture to grow and produce well.
The most efficient watering methods are drip irrigation or soaker hoses. Hand watering allows you to closely observe plants for weeds, insects, and disease.
Avoid overhead watering when possible. It wastes water and encourages weeds and fungal diseases. Never allow vegetable plants to dry out.
Manage pests and diseases
Healthy gardens rely on prevention. Keep gardens free of weeds, diseased plant material, and debris that provides shelter for pests.
- Bait for slugs when planting seedlings
- Identify pests before using any control method
- Use targeted treatments that protect beneficial insects
- Choose the least harmful product for the specific problem
Always read and follow label directions carefully.
Choose the right vegetables and varieties
Select vegetable varieties that are well-adapted to the coastal climate. When possible, grow your own transplants from seed and choose varieties with shorter days to maturity, especially for heat-loving crops like tomatoes and peppers.
Before transplanting, harden off plants by gradually exposing them to outdoor conditions over several days. Protect young plants from hungry pests when planting.
Water transplants thoroughly using a commercial transplant solution or liquid kelp to reduce transplant shock.
Final thoughts
With thoughtful planning and attention to soil preparation, weather protection, proper fertility, and plant selection, you can successfully grow vegetables in Oregon’s coastal climate.
