Planting Dates For Spring

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Seattle, WA

See Your Almanac Planting Calendar for 2026

The 2026 gardening calendar shows spring and fall planting dates for vegetables, fruits, and herbs, customized for your zip code or postal code.

Spring Planting Calendar

Our spring planting calendar starts with the earliest dates you can plant, based on your area’s last spring frost. If you’ve missed the first window, don’t worry! We also provide “last planting dates” to help new gardeners see how late they can plant and still enjoy a harvest.

Fall Planting Calendar

Our fall planting calendar focuses on planting in late summer for a fall harvest—think of it as a second summer! Keeping crops going is easy if your soil is already prepared.

Tip: Use frost-based dates for standard planting; moon-based dates are for gardeners who follow planting by the Moon.

Planting Dates for Spring

On average, your last spring frost occurs on March 21 (at SEATTLE BOEING FLD, WA climate station, elevation 19 feet).

Crop	Based on Frost Dates Based on Moon Dates
	Start Seeds Indoors	Plant Seedlingsor Transplants	Start Seeds Outdoors	Last Date to Plant
Anise Hyssop	Jan 23-Feb 6 Jan 23-Feb 1	Mar 21-Apr 18 Mar 21-Apr 1, Apr 17-18	N/A
Arugula	Jan 23-Feb 6 Jan 23-Feb 1	Feb 27-Mar 14 Feb 27-Mar 3	Feb 20-27 Feb 20-27	Oct 13
Asparagus	N/A	Feb 27-Mar 6 Mar 4-6	N/A	Mar 21
Basil	Feb 6-20 Feb 17-20	Apr 4-18 Apr 17-18	Apr 4-18 Apr 17-18	Sep 29
Beets	N/A	Mar 21	Feb 20-Mar 6 Mar 4-6	Apr 4
Bell Peppers	Jan 9-23 Jan 18-23	Apr 4-11	N/A	Aug 18
Bok Choy	Feb 6-20 Feb 17-20	Apr 4-11	Apr 4-11	May 2
Borage	Feb 6-20 Feb 17-20	Mar 28-Apr 4 Mar 28-Apr 1	Mar 28-Apr 4 Mar 28-Apr 1
Broccoli	Feb 6-20 Feb 17-20	Mar 6-21 Mar 18-21	N/A	Sep 8
Brussels Sprouts	Feb 6-20 Feb 17-20	Mar 6-21 Mar 18-21	N/A	Aug 4
Cabbage	Jan 23-Feb 6 Jan 23-Feb 1	Feb 27-Mar 6 Feb 27-Mar 3	N/A	Mar 28
Cannabis	Feb 6-20 Feb 17-20	Mar 28-Apr 11 Mar 28-Apr 1	Mar 28-Apr 11 Mar 28-Apr 1
Cantaloupes	Feb 6-20 Feb 17-20	Apr 4-11	Apr 4-11	Aug 4
Carrots	N/A	N/A	Feb 20-Mar 6 Mar 4-6	Sep 1
Cauliflower	Feb 6-20 Feb 17-20	Mar 14-28 Mar 18-28	N/A	Aug 25
Celery	Dec 26-Jan 9 Dec 26-Jan 3	Mar 28-Apr 11 Mar 28-Apr 1	Mar 21 Mar 21	Sep 1
Chamomile	Jan 23-Feb 6 Jan 23-Feb 1	Mar 28-Apr 4 Mar 28-Apr 1	Mar 28-Apr 11 Mar 28-Apr 1
Chervil	N/A	N/A	Feb 27-Mar 6 Feb 27-Mar 3
Chives	Jan 23-Feb 6 Jan 23-Feb 1	Feb 27-Mar 6 Feb 27-Mar 3	Feb 27-Mar 6 Feb 27-Mar 3	Sep 15
Cilantro (Coriander)	N/A	N/A	Mar 21-Apr 4 Mar 21-Apr 1	Apr 11
Collards	Jan 23-Feb 6 Jan 23-Feb 1	Feb 20-27 Feb 20-27	N/A	Sep 1
Comfrey	Dec 26-Jan 9 Dec 26-Jan 3	Mar 28-Apr 11 Mar 28-Apr 1	N/A
Cucumbers	Feb 27-Mar 6 Feb 27-Mar 3	Mar 28-Apr 11 Mar 28-Apr 1	Apr 4-11	Sep 1
Dill	N/A	N/A	Mar 14-Apr 4 Mar 18-Apr 1	Sep 15
Dry Beans	N/A	N/A	Apr 4-11	Aug 4
Eggplants	Jan 23-Feb 6 Jan 23-Feb 1	Apr 4-11	N/A	Sep 1
Fava Beans	N/A	N/A	Feb 20-27 Feb 20-27	Apr 4
Fennel	Feb 6-20 Feb 17-20	Mar 28-Apr 4 Mar 28-Apr 1	Mar 21-Apr 4 Mar 21-Apr 1	Aug 25
Garlic	N/A	N/A	N/A
Ginger	Jan 9-23 Jan 18-23	Apr 4-18 Apr 17-18	Apr 4-18 Apr 17-18
Green Beans	N/A	N/A	Mar 28-Apr 18 Mar 28-Apr 1, Apr 17-18	Sep 1
Honeydew Melons	Feb 27-Mar 6 Feb 27-Mar 3	Apr 4-11	Apr 4-11	Aug 11
Jalapeño Peppers	Jan 9-23 Jan 18-23	Apr 4-11	N/A
Kale	Jan 23-Feb 6 Jan 23-Feb 1	Mar 6-21 Mar 18-21	Feb 20-27 Feb 20-27	Apr 4
Kohlrabi	Jan 23-Feb 6 Jan 23-Feb 1	Feb 20-Mar 6 Feb 20-Mar 3	N/A	Apr 4
Lavender	Jan 9-23 Jan 18-23	Apr 4-18 Apr 17-18	N/A
Leeks	Jan 9-23 Jan 18-23	Feb 27-Mar 14 Feb 27-Mar 3	N/A	Jul 28
Lemon Balm	Jan 23-Feb 6 Jan 23-Feb 1	Mar 28-Apr 4 Mar 28-Apr 1	Mar 28-Apr 4 Mar 28-Apr 1
Lemon Verbena	N/A	Apr 4-18 Apr 17-18	N/A
Lettuce	Jan 23-Feb 6 Jan 23-Feb 1	Feb 20-27 Feb 20-27	Feb 20-Mar 6 Feb 20-Mar 3	Apr 4
Marjoram	Jan 23-Feb 6 Jan 23-Feb 1	Mar 28-Apr 4 Mar 28-Apr 1	N/A
Mint	Jan 9-23 Jan 18-23	Mar 28-Apr 4 Mar 28-Apr 1	Mar 28-Apr 4 Mar 28-Apr 1
Mustard Greens	Feb 6-20 Feb 17-20	Feb 27-Mar 6 Feb 27-Mar 3	Feb 27-Mar 6 Feb 27-Mar 3
Okra	Feb 20-Mar 6 Feb 20-Mar 3	Apr 4-11	Apr 4-18 Apr 17-18	Sep 1
Onions	Jan 9-23 Jan 9-17	Feb 20-Mar 6 Mar 4-6	Feb 20-Mar 6 Mar 4-6	Aug 4
Oregano	Jan 9-Feb 6 Jan 18-Feb 1	Mar 28-Apr 11 Mar 28-Apr 1	N/A	Sep 1
Parsley	Jan 9-23 Jan 18-23	Mar 28-Apr 11 Mar 28-Apr 1	Feb 20-Mar 28 Feb 20-Mar 3, Mar 18-28	Aug 25
Parsnips	N/A	N/A	Feb 20-27	Aug 4
Peanuts	N/A	N/A	Apr 11-25 Apr 11-16
Peas	N/A	N/A	Feb 20-27 Feb 20-27	Apr 4
Potatoes	N/A	N/A	Feb 20-Mar 6 Mar 4-6	Sep 1
Pumpkins	Feb 27-Mar 14 Feb 27-Mar 3	Apr 4-11	Apr 4-11	Jul 28
Radishes	N/A	N/A	Feb 20-27	Sep 15
Rosemary	Dec 26-Jan 9 Dec 26-Jan 3	Apr 4-11	N/A	Sep 15
Sage	Jan 23-Feb 6 Jan 23-Feb 1	Mar 28-Apr 11 Mar 28-Apr 1	N/A	Aug 25
Salad Burnet	Jan 23-Feb 6 Jan 23-Feb 1	Mar 28-Apr 4 Mar 28-Apr 1	Mar 21-Apr 18 Mar 21-Apr 1, Apr 17-18
Salsify	N/A	N/A	Feb 20-Mar 6 Mar 4-6	Aug 4
Savory	Jan 23-Feb 6 Jan 23-Feb 1	Mar 28-Apr 4 Mar 28-Apr 1	N/A
Spinach	Feb 6-20 Feb 17-20	Feb 27-Mar 6 Feb 27-Mar 3	Feb 20-27 Feb 20-27	Apr 4
Sweet Corn	N/A	N/A	Apr 4-18 Apr 17-18	Aug 25
Sweet Potatoes	N/A	Apr 11-18 Apr 11-16	N/A	Jul 28
Swiss Chard	Feb 6-20 Feb 17-20	Mar 6-21 Mar 18-21	Feb 27-Mar 21 Feb 27-Mar 3, Mar 18-21	Apr 4
Tarragon	Jan 23-Feb 6 Jan 23-Feb 1	Mar 28-Apr 4 Mar 28-Apr 1	N/A
Thyme	Jan 9-23 Jan 18-23	Mar 28-Apr 4 Mar 28-Apr 1	N/A	Aug 18
Tomatillos	Feb 6-20 Feb 17-20	Apr 4-18 Apr 17-18	N/A	Aug 25
Tomatoes	Jan 23-Feb 6 Jan 23-Feb 1	Apr 4-11	N/A	Aug 11
Turmeric	Jan 23-Feb 20 Jan 23-Feb 1, Feb 17-20	Apr 4-18 Apr 17-18	Apr 4-18 Apr 17-18
Turnips	N/A	N/A	Feb 20-27	Oct 13
Watercress	Feb 20-27 Feb 20-27	Mar 28-Apr 4 Mar 28-Apr 1	Mar 21-Apr 4 Mar 21-Apr 1
Watermelons	Feb 27-Mar 14 Feb 27-Mar 3	Apr 4-11	Mar 28-Apr 4 Mar 28-Apr 1	Aug 11
Winter Squash	Feb 27-Mar 6 Feb 27-Mar 3	Mar 28-Apr 11 Mar 28-Apr 1	Apr 4-11	Jul 21
Zucchini (Summer Squash)	Feb 27-Mar 6 Feb 27-Mar 3	Mar 28-Apr 11 Mar 28-Apr 1	Apr 4-11	Sep 8

Planting Dates for Fall

On average, your first fall frost occurs on November 10 (at SEATTLE BOEING FLD, WA climate station).

Crop	Based on Frost Dates Based on Moon Dates
	Start Seeds Outdoors	Transplant	Average Days to Maturity	Frost Tolerance
Arugula	Sep 22-Oct 27 Sep 22-26, Oct 10-25	N/A	40	Frost-hardy
Beets	Aug 18-Sep 15 Aug 28-Sep 9	N/A	50	Frost-tolerant
Bok Choy	Sep 1-22 Sep 10-22	N/A	50	Frost-tolerant
Broccoli	Aug 11-18 Aug 12-18	Sep 1-15 Sep 10-15	60	Frost-tolerant
Brussels Sprouts	Jul 21-Aug 4 Jul 21-29	N/A	100	Frost-hardy
Cabbage	N/A	Aug 18-Sep 1 Aug 18-27	90	Frost-tolerant
Carrots	Aug 25-Sep 1 Aug 28-Sep 1	N/A	70	Frost-tolerant
Cauliflower	Aug 4-11	Aug 18-25 Aug 18-25	75	Frost-tolerant
Chives	Aug 18-Sep 15 Aug 18-27, Sep 10-15	N/A	70	Frost-tolerant
Collards	Aug 4-18 Aug 12-18	Sep 15-29 Sep 15-26	75	Frost-hardy
Fennel	Aug 11-25 Aug 12-25	N/A	80	Tender
Garlic	Nov 24-Dec 8 Nov 25-Dec 7	N/A	120	Frost-hardy
Green Beans	Aug 25-Sep 8 Aug 25-27	N/A	55	Tender
Kale	Sep 1-15 Sep 10-15	N/A	60	Frost-hardy
Kohlrabi	Sep 15-1 Sep 15-26	Oct 6-Sep 22 Oct 10-25	45	Frost-tolerant
Lettuce	Sep 15-29 Sep 15-26	N/A	60	Frost-tolerant
Mustard Greens	Sep 8-29 Sep 10-26	N/A	45	Tender
Peas	Sep 1-15 Sep 10-15	N/A	55	Tender
Radishes	Sep 29-Oct 13 Sep 29-Oct 9	N/A	25	Frost-tolerant
Spinach	Sep 22-Oct 13 Sep 22-26, Oct 10-13	N/A	30	Frost-hardy
Swiss Chard	Sep 1-15 Sep 10-15	N/A	60	Frost-tolerant
Turnips	Sep 8-22 Sep 8-9	N/A	50	Frost-tolerant

Understanding the Chart

The charts include several columns to guide your planting:

• Plant names are linked: Click any crop to view its Growing Guide for detailed advice on planting, care, and harvest.

• Start Seeds Indoors: When to sow seeds inside for an early start.

• Plant Seedlings Outdoors: When to transplant seedlings or starter plants from a nursery.

• Start Seeds Outdoors: When to sow seeds directly in your garden soil.

• Last Date to Plant: The final date to plant so crops have time to mature before frost.

• Moon Dates: Best planting days based on lunar phases—an age-old gardening tradition.

• N/A: Indicates a planting method that is generally not recommended but may still be possible.

Use the icon below to get the best printable or email-friendly version of the calendar.

Planting Guidance

• Many quick-maturing crops, such as radishes, can be planted successively throughout the summer in northern regions. However, some cool-season crops—such as kale and lettuce—may bolt in hot temperatures. Gardeners in warmer regions may need a short summer break, resuming planting once the heat passes.
• Many crops that are typically started indoors for spring can be planted directly in the soil for fall. Warm soil, fewer pests, and seasonal rainfall make it easier to grow. Some crops must be harvested by the first frost, but many are frost-tolerant and even taste sweeter after a light frost.
• The dates are calculated relative to frost, giving each user a unique calendar. That’s why some crops, especially similar varieties like kale and lettuce, or seedlings such as broccoli and cabbage, may share the same dates.

Frequently Asked Questions

How Accurate Are the Planting Dates?

Use this chart as a planning guide and starting point. The frost dates are averages based on historical data—they are not predictions for the coming year. While most gardeners rely on frost dates to plan planting, some locations in the U.S. may not experience frost, and certain areas may not match these dates perfectly.

Local microclimates—such as low spots, slopes, or sheltered areas—can also affect your planting schedule. Watch the weather, talk with fellow gardeners, and take notes on what works best in your garden.

Why Do You Start Seeds Indoors?

Starting seeds indoors gives crops a head start on the growing season, which is crucial in regions with shorter seasons. Indoors, young plants grow in a stable, controlled environment, protected from unpredictable rain, drought, frost, temperature swings, pests, and diseases.

For most crops, seeds should be started 6–8 weeks before the last spring frost. This ensures plants grow large and healthy enough to survive transplanting outdoors. Read more about starting seeds indoors here.

Which Seeds Should Be Started Indoors?

Not all vegetables benefit from indoor starting. Most are better off direct-sown in the garden.

• Seeds that should be started indoors are typically:
• Tender vegetables: tomatoes, peppers, eggplant
• Long-season crops: broccoli, cauliflower, Brussels sprouts

Crops like carrots, radishes, beets, squash, and watermelon are best sown directly in the garden, as they do not tolerate root disturbance and need warm soil to thrive. Read more about direct-sowing seeds here!

When Should You Transplant Seedlings?

Transplant seedlings when they outgrow their trays or starter pots.

• If outdoor conditions aren’t ready, move seedlings to larger pots indoors.
• Begin hardening off approximately one week before the last frost date to gradually acclimate plants to outdoor conditions.
• Then transplant them into the garden. Get more tips for transplanting seedlings.

What Is Planting by the Moon?

Planting by the Moon (or “Gardening by the Moon”) is a traditional method for timing crop planting based on lunar phases:

• Above-ground crops: Plant annual flowers and vegetables during the Waxing Moon (new to full).
• Below-ground crops: Plant bulbs, biennials, perennials, and root vegetables during the Waning Moon (full to new).

Gardeners report larger, tastier harvests using this method. Our planting calendar includes Moon dates to help you plan. Learn more about Planting and Gardening by the Moon.