Spokane, located in the eastern part of Washington State, experiences a continental climate with cold winters and warm summers. This unique climate presents both challenges and opportunities for gardeners. Understanding when to plant and how to adapt to the seasonal changes is crucial for a successful and thriving garden. In this article, we’ll delve into the specifics of Spokane’s gardening seasons, providing you with a comprehensive guide on when to plant, what to plant, and how to nurture your garden throughout the year.
Understanding Spokane’s Climate
Before diving into the planting calendar, it’s essential to understand the local climate. Spokane’s weather is characterized by:
- Cold Winters: Temperatures can drop below freezing, with potential snowfall. This period typically lasts from December to February.
- Cool Springs: Spring can be quite cool, especially in the mornings and evenings, with gradual warming as the season progresses. This season usually runs from March to May.
- Warm Summers: Summers are warm to hot, with minimal rainfall. The summer season in Spokane typically occurs from June to August.
- Mild Autumns: Autumns are generally mild, with a gradual cooling trend. This season lasts from September to November.
Seasonal Planting Guide
Spring Planting (March to May)
Spring is an excellent time to start planting in Spokane. As the soil begins to warm up and the danger of frost decreases, you can start introducing a variety of plants into your garden.
- Vegetables: Cool-season crops like broccoli, kale, spinach, carrots, and peas thrive in Spokane’s spring. These can be planted as soon as the soil can be worked in early spring.
- Flowers: Bulbs like tulips and daffodils can be planted in the fall for a spring bloom, but for direct spring planting, consider pansies, violas, and snapdragons.
- Fruits: Strawberry plants can be set out in early spring, and raspberries or blueberries can be planted as soon as the soil is workable.
Summer Planting (June to August)
Summer is ideal for warm-season crops and plants that love the heat.
- Vegetables: Tomatoes, peppers, cucumbers, zucchini, and squash are perfect for summer. Wait until the soil has warmed up and the risk of frost has passed.
- Flowers: Sunflowers, zinnias, marigolds, and cosmos love the warm weather and can thrive in Spokane’s summers.
- Fruits: Warm-season fruits like melons can be direct-seeded in late spring to early summer when the soil is warm.
Fall Planting (September to November)
Fall offers another cooler window for planting, ideal for crops that mature quickly before the first frost.
- Vegetables: Plant cool-season crops again, such as broccoli, carrots, and kale, about 8 weeks before the first frost.
- Flowers: Asters, sedum, and chrysanthemums do well in the fall. You can also plant spring-blooming bulbs like tulips and daffodils.
- Fruits: Fall is a good time to plant fruit trees and bushes, like apple trees or currants, as the cooler weather reduces transplant shock.
Winter Planting (December to February)
While it may seem counterintuitive, there are a few things you can plant during Spokane’s cold winter months.
- Vegetables: Garlic can be planted in the fall for a summer harvest, but some varieties can also be planted in late winter to early spring as soon as the soil can be worked.
- Flowers: If you’re using cold frames or indoor containers, you can start seeds for early spring bloomers like pansies or violas.
Gardening Tips for Spokane
- Soil Preparation: Spokane’s soil can be challenging due to its low organic matter content. Adding compost or well-rotted manure can improve soil structure and fertility.
- Water Conservation: Given Spokane’s dry summers, Water conservation is key. Mulching, drip irrigation, and collecting rainwater can help reduce water usage.
- Protection from Extremes: Use row covers or cold frames to protect plants from frost. In the summer, provide shade for plants that are sensitive to intense heat.
- Pest and Disease Management: Keep an eye out for pests like aphids, slugs, and snails, and diseases like powdery mildew. Use organic or integrated pest management techniques whenever possible.
Conclusion
Gardening in Spokane requires a deep understanding of the local climate and its seasonal fluctuations. By timing your plantings according to the seasonal shifts and taking into account the specific needs of different plants, you can enjoy a thriving and diverse garden throughout the year. Whether you’re a seasoned gardener or just starting out, the unique challenges and opportunities presented by Spokane’s climate can lead to a rewarding and fulfilling gardening experience.
FAQ Section
What is the best time to plant tomatoes in Spokane?
+Wait until the soil has warmed up and the risk of frost has passed, usually around late May to early June in Spokane.
How do I protect my plants from frost in early spring?
+Use row covers or bring plants under cover if possible. For plants that cannot be moved, consider using frost blankets or individual plant covers.
What are some good cool-season crops for fall planting in Spokane?
+Cool-season crops like broccoli, kale, spinach, and carrots do well in Spokane’s fall. Plant them about 8 weeks before the first expected frost.
How often should I water my garden in Spokane’s dry summer?
+Water deeply but less frequently to encourage deep root growth. Aim to provide about 1-2 inches of water per week, either from rain or irrigation, and avoid overhead watering to reduce evaporation and minimize fungal diseases.
Can I grow melons in Spokane, and if so, when should I plant them?
+Yes, melons can be grown in Spokane. Direct seed them in late spring to early summer when the soil has warmed up to at least 60°F. Choose varieties with a shorter maturation period to ensure they have enough time to ripen before the first frost.
