When to Plant Beets in Washington (2026 Guide)

Beets are a fantastic crop to grow in Washington, offering both delicious roots and nutritious greens. Understanding the local frost dates is crucial for successful planting. In Zone 6b, for instance, the median last spring frost is around April 9, giving gardeners a good window for sowing these hardy vegetables.

In contrast, gardeners in Zone 6a should plan for a last spring frost around April 20, while those in Zone 5b face a later frost date of May 6. This means that timing your planting correctly across Washington is essential for harvesting sweet, flavorful beets.

Be sure to take advantage of the full growing season available, often stretching up to 200 days in the warmer zones. With proper care and attention, you can enjoy beets not just for their roots but also for their greens throughout the gardening season.

Planting Schedule by USDA Zone in Washington

ZoneIndoor startTransplant outDirect sowHarvest
Zone 6bNot recommended — direct sow onlyNot recommended — direct sow onlyStart March 1 – April 9, ~4–6 weeks before April 10Harvest between October 1 – October 26, ideally by October 15
Zone 6aNot recommended — direct sow onlyNot recommended — direct sow onlyStart March 15 – April 20, ~4–6 weeks before April 20Harvest between October 1 – October 19, ideally by October 10
Zone 5bNot recommended — direct sow onlyNot recommended — direct sow onlyStart April 1 – May 6, ~4–6 weeks before May 6Harvest between September 15 – October 3, ideally by September 25

Beets Planting Windows in Washington

Common Mistakes Growing Beets in Washington

  1. One common mistake in Washington is planting beets too early, especially in colder regions near the mountains. This can lead to poor germination, as seeds can struggle in still-frozen or overly wet soil.
  2. Not providing enough moisture during the germination phase can hinder beet growth. Washington summers can sometimes be quite dry, so it's essential to ensure consistent soil moisture for optimal root development.
  3. Many gardeners mistakenly believe beets can be started indoors. In Washington's cool climate, beets are best direct sown to avoid transplant shock and poor growth results.
  4. Planting beets after spinach or chard increases the risk of downy mildew. In Washington, where moisture can be high, proper crop rotation is key to preventing diseases.
  5. Assuming that beets can grow regardless of soil quality is another misstep. Washington has a variety of soil types; ensuring you have good drainage and nutrient-rich soil is essential for strong bead production.

Frequently Asked Questions

What if I'm in a colder part of Washington?

If you're located in a colder area, be cautious about frost dates. You may need to wait until late April to plant your beets, ensuring that the danger of frost has passed to guarantee better germination.

Can I still plant beets in May?

Yes, but only if you're in Zone 5b. Make sure to sow your beet seeds directly into the soil after May 6 to allow them sufficient time to thrive before harvest.

How do I know if my beets are ready to harvest?

Typically, beets are ready to harvest when they reach around 1.5 to 2.5 inches in diameter. Check frequently to ensure you pick them before they become woody or oversized.

Should I be fertilizing my beets?

Yes, it is beneficial to fertilize your beets. Using a balanced fertilizer upon sowing will help ensure robust growth and high-quality roots, especially in nutrient-poor soils common in some parts of Washington.

How do I store my harvested beets?

To store harvested beets, remove the greens, and keep them in a cool, dark place. Beets can be stored for several weeks in a refrigerator, maintaining their freshness and flavor.

Keep Learning

City guides in Washington

Other crops in Washington

Typical fall sowing window for Beets in Washington: August 3 – August 24.