Frost Dates for Grants Pass, OR 97526
Grants Pass has 2 ZIP codes. The Grants Pass, OR frost page lists all of them with their dates.
Last spring frost May 16 · First fall frost October 15 · 152 frost-free days · USDA Zone 8b
ZIP 97526 has about 36,000 people, one of 2 ZIP codes in Grants Pass.
Moderate season: 152 frost-free days. Spring frost risk spans April 24–June 5 (42 days). Fall frost risk spans September 16–November 13 (58 days).
Frost probability for 97526
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | June 5 | May 16 | April 24 |
| Fall (first frost) | September 16 | October 15 | November 13 |
Dates come from NOAA 1971–2000 freeze probabilities at RUCH (40.2 km away); the 50% date is the median year.
Which crops fit a 152-day season in Grants Pass
In Grants Pass (152 frost-free days, a moderate season), 32 of 56 planner crops fit outright, 23 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Apr 11 | May 30–Jun 6 | 110 | fits: 80 days to maturity, 110 available after May 30. | Jun 15 |
| Pepper | Apr 4 | May 30–Jun 6 | 110 | fits: 75 days to maturity, 110 available after May 30. | Jun 20 |
| Lettuce | Mar 21 | Apr 18–Apr 25 | 187 | two-plantings: Plant Apr 18 and again by Aug 24; both mature before Oct 22. | Aug 24 |
| Carrots | — | Apr 25–May 2 | 194 | fits: 70 days to maturity, 194 available after Apr 25. | Aug 13 |
| Cucumber | Apr 25 | May 30–Jun 6 | 124 | fits: 60 days to maturity, 124 available after May 30. | Jul 19 |
| Beans | — | May 23–Jun 6 | 138 | two-plantings: Plant May 23 and again by Jul 26; both mature before Oct 8. | Jul 26 |
| Peas | — | Mar 21–May 30 | 215 | fits: 65 days to maturity, 215 available after Mar 21. | Aug 4 |
| Zucchini | May 2 | May 30–Jun 6 | 124 | two-plantings: Plant May 30 and again by Jul 24; both mature before Oct 1. | Jul 24 |
| Onion | Feb 21 | Apr 18–May 2 | 187 | fits: 100 days to maturity, 187 available after Apr 18. | — |
| Spinach | — | Mar 21–May 9 | 229 | two-plantings: Plant Mar 21 and again by Sep 12; both mature before Nov 5. | Sep 12 |
| Kale | Mar 7 | Apr 18–May 2 | 201 | two-plantings: Plant Apr 18 and again by Aug 28; both mature before Nov 5. | Aug 28 |
| Broccoli | Mar 21 | Apr 18–May 2 | 187 | fits: 80 days to maturity, 187 available after Apr 18. | Jul 20 |
| Cabbage | Mar 21 | Apr 18–May 2 | 201 | fits: 70 days to maturity, 201 available after Apr 18. | Aug 13 |
| Radish | — | Mar 21–Jun 13 | 215 | two-plantings: Plant Mar 21 and again by Sep 13; both mature before Oct 22. | Sep 13 |
| Beets | — | Mar 21–Jun 13 | 215 | two-plantings: Plant Mar 21 and again by Aug 14; both mature before Oct 22. | Aug 14 |
| Potatoes | — | May 2–May 9 | 173 | fits: 90 days to maturity, 173 available after May 2. | — |
| Garlic | — | Oct 15 | 257 | overwinter: Plant Oct 15 to Nov 5; harvest the following summer. | Nov 5 |
| Strawberry | — | Apr 11–Jun 6 | 208 | perennial: A perennial: plant Apr 11; it fruits from the following year and keeps producing for several years. | — |
| Corn | Apr 18 | May 23–May 30 | 124 | fits: 75 days to maturity, 124 available after May 23. | Jun 27 |
| Pumpkin | May 2 | May 30–May 30 | 117 | fits: 100 days to maturity, 117 available after May 30. | Jun 2 |
| Cauliflower | Apr 4 | May 9–May 23 | 166 | fits: 75 days to maturity, 166 available after May 9. | Jul 25 |
| Swiss Chard | Mar 21 | May 2–May 2 | 173 | two-plantings: Plant May 2 and again by Aug 14; both mature before Oct 22. | Aug 14 |
| Arugula | — | Mar 21–Jun 13 | 229 | two-plantings: Plant Mar 21 and again by Sep 12; both mature before Nov 5. | Sep 12 |
| Brussel Sprouts | Mar 21 | Apr 18–May 2 | 201 | fits: 100 days to maturity, 201 available after Apr 18. | Jul 14 |
| Butternut Squash | May 2 | May 30–Jun 6 | 117 | fits: 100 days to maturity, 117 available after May 30. | Jun 2 |
| Eggplant | Mar 28 | May 30–Jun 6 | 110 | fits: 70 days to maturity, 110 available after May 30. | Jun 25 |
| Okra | Apr 18 | May 23–May 30 | 131 | two-plantings: Plant May 23 and again by Jul 24; both mature before Oct 1. | Jul 24 |
| Basil | Apr 11 | Jun 6–Jun 6 | 117 | fits: 60 days to maturity, 117 available after Jun 6. | Jul 19 |
| Cilantro | — | Apr 18–May 9 | 187 | two-plantings: Plant Apr 18 and again by Aug 19; both mature before Oct 22. | Aug 19 |
| Parsley | Mar 7 | May 23–May 30 | 152 | fits: 70 days to maturity, 152 available after May 23. | Jul 30 |
| Celery | Mar 7 | May 23–Jun 6 | 152 | fits: 120 days to maturity, 152 available after May 23. | Jun 10 |
| Scallions | Mar 7 | Apr 18–May 2 | 201 | two-plantings: Plant Apr 18 and again by Aug 23; both mature before Nov 5. | Aug 23 |
| Turnip | — | Apr 18–May 2 | 201 | two-plantings: Plant Apr 18 and again by Sep 2; both mature before Nov 5. | Sep 2 |
| Kohlrabi | — | Apr 4–Apr 18 | 215 | two-plantings: Plant Apr 4 and again by Aug 28; both mature before Nov 5. | Aug 28 |
| Bok Choy | Apr 18 | May 9–May 16 | 166 | two-plantings: Plant May 9 and again by Aug 24; both mature before Oct 22. | Aug 24 |
| Collards | Mar 7 | Apr 18–May 2 | 201 | two-plantings: Plant Apr 18 and again by Aug 23; both mature before Nov 5. | Aug 23 |
| Cantaloupe | May 2 | May 30–Jun 6 | 110 | fits: 85 days to maturity, 110 available after May 30. | Jun 10 |
| Chives | Feb 21 | May 23–May 30 | 166 | fits: 90 days to maturity, 166 available after May 23. | — |
| Dill | — | Mar 21–Jun 13 | 215 | two-plantings: Plant Mar 21 and again by Aug 14; both mature before Oct 22. | Aug 14 |
| Oregano | Mar 7 | May 23–May 30 | 166 | fits: 80 days to maturity, 166 available after May 23. | — |
| Rosemary | Feb 21 | May 23–May 30 | 152 | fits: 80 days to maturity, 152 available after May 23. | — |
| Sage | Mar 21 | May 23–May 30 | 166 | fits: 75 days to maturity, 166 available after May 23. | — |
| Thyme | Mar 7 | May 23–May 30 | 166 | fits: 90 days to maturity, 166 available after May 23. | — |
| Calendula | Apr 4 | May 2–May 16 | 173 | two-plantings: Plant May 2 and again by Aug 19; both mature before Oct 22. | Aug 19 |
| Cosmos | Apr 18 | May 16–May 30 | 138 | two-plantings: Plant May 16 and again by Jul 19; both mature before Oct 1. | Jul 19 |
| Lavender | Feb 21 | May 16–May 30 | 173 | fits: 90 days to maturity, 173 available after May 16. | — |
| Marigolds | Apr 4 | May 16–May 23 | 138 | two-plantings: Plant May 16 and again by Jul 29; both mature before Oct 1. | Jul 29 |
| Melons | May 2 | May 30–Jun 6 | 110 | fits: 85 days to maturity, 110 available after May 30. | Jun 10 |
| Mint | — | May 16–May 30 | 173 | fits: 90 days to maturity, 173 available after May 16. | — |
| Nasturtiums | Apr 18 | May 16–May 23 | 138 | two-plantings: Plant May 16 and again by Jul 24; both mature before Oct 1. | Jul 24 |
| Pole Beans | — | May 23–Jun 6 | 131 | fits: 65 days to maturity, 131 available after May 23. | Jul 14 |
| Spaghetti Squash | May 2 | May 30–Jun 6 | 117 | fits: 90 days to maturity, 117 available after May 30. | Jun 12 |
| Sunflowers | — | May 16–May 30 | 138 | fits: 70 days to maturity, 138 available after May 16. | Jul 9 |
| Tomatillos | Mar 21 | May 23–May 30 | 117 | fits: 75 days to maturity, 117 available after May 23. | Jun 20 |
| Watermelon | May 2 | May 23–May 30 | 117 | fits: 80 days to maturity, 117 available after May 23. | Jun 15 |
| Yellow Squash | May 2 | May 30–Jun 6 | 124 | two-plantings: Plant May 30 and again by Jul 24; both mature before Oct 1. | Jul 24 |
| Zinnias | Apr 18 | May 16–May 30 | 138 | two-plantings: Plant May 16 and again by Jul 19; both mature before Oct 1. | Jul 19 |
Month by month in Grants Pass
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start indoors: Chives (Feb 21), Lavender (Feb 21), Onion (Feb 21), Rosemary (Feb 21). |
| March | Start indoors: Celery (Mar 7), Collards (Mar 7), Kale (Mar 7), Oregano (Mar 7), Parsley (Mar 7), Scallions (Mar 7), +9 more. Direct sow from: Arugula (Mar 21), Beets (Mar 21), Dill (Mar 21), Peas (Mar 21), Radish (Mar 21), Spinach (Mar 21). |
| April | Start indoors: Calendula (Apr 4), Cauliflower (Apr 4), Marigolds (Apr 4), Pepper (Apr 4), Basil (Apr 11), Tomato (Apr 11), +7 more. Direct sow from: Kohlrabi (Apr 4), Cilantro (Apr 18), Turnip (Apr 18), Carrots (Apr 25). Transplant from: Broccoli (Apr 18), Brussel Sprouts (Apr 18), Cabbage (Apr 18), Collards (Apr 18), Kale (Apr 18), Lettuce (Apr 18), +2 more. Plant: Strawberry (Apr 11). |
| May | Start indoors: Butternut Squash (May 2), Cantaloupe (May 2), Melons (May 2), Pumpkin (May 2), Spaghetti Squash (May 2), Watermelon (May 2), +2 more. Direct sow from: Potatoes (May 2), Sunflowers (May 16), Beans (May 23), Pole Beans (May 23). Transplant from: Calendula (May 2), Swiss Chard (May 2), Bok Choy (May 9), Cauliflower (May 9), Cosmos (May 16), Lavender (May 16), +26 more. Last frost around May 16. |
| June | Transplant from: Basil (Jun 6). Last sowing dates: Butternut Squash (Jun 2), Pumpkin (Jun 2), Cantaloupe (Jun 10), Celery (Jun 10), Melons (Jun 10), Spaghetti Squash (Jun 12), +6 more. |
| July | Last sowing dates: Sunflowers (Jul 9), Brussel Sprouts (Jul 14), Pole Beans (Jul 14), Basil (Jul 19), Cosmos (Jul 19), Cucumber (Jul 19), +10 more. |
| August | Last sowing dates: Peas (Aug 4), Cabbage (Aug 13), Carrots (Aug 13), Beets (Aug 14), Dill (Aug 14), Swiss Chard (Aug 14), +8 more. |
| September | Last sowing dates: Turnip (Sep 2), Arugula (Sep 12), Spinach (Sep 12), Radish (Sep 13). |
| October | Direct sow from: Garlic (Oct 15). First frost around October 15. |
| November | Last sowing dates: Garlic (Nov 5). |
| December | Clean up spent plants. Add compost to beds. Rest, review, and plan next year's garden. |
Frequently Asked Questions
What is the last frost date for Grants Pass, OR (ZIP 97526)?
The median last spring frost date for Grants Pass, OR (ZIP code 97526) is around May 16. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area. One year in ten frost ends before April 24; one in ten it runs past June 5.
What is the first fall frost date in Grants Pass, OR?
The median first fall frost date for Grants Pass, OR is around October 15. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses. The first frost arrives around September 16 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Grants Pass, OR?
The frost-free growing season in Grants Pass is about 152 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side. In Grants Pass (152 frost-free days, a moderate season), 32 of 56 planner crops fit outright, 23 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Grants Pass, OR?
Grants Pass, OR is in USDA hardiness zone 8b (2023 USDA Plant Hardiness Zone Map). Zones come from the average coldest winter temperature, so they tell you which perennials survive the winter; the frost dates on this page tell you when to plant.
When should I start tomatoes indoors in Grants Pass, OR?
Start tomatoes indoors Apr 11 and plant out May 30 in Grants Pass. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Grants Pass?
Two: plant Apr 18 and again by Aug 24; both mature before Oct 22.
When do I plant garlic in Grants Pass?
Oct 15 to Nov 5; it overwinters and is ready the following summer.
Which nearby ZIP has a longer season?
Grants Pass (ZIP 97527) has 162 frost-free days, 10 more than Grants Pass (ZIP 97526). See Grants Pass ZIP 97527 frost dates
Nearby and related
- Frost dates for Grants Pass, OR 97527 (9.7 mi)
- Frost dates for Central Point, OR 97502 (21.2 mi)
- Frost dates for White City, OR 97503 (21.5 mi)
- Frost dates for Medford, OR 97504 (30.2 mi)
- Frost dates for Eagle Point, OR 97524 (34.6 mi)
- When to plant in OR
- When to plant Peppers in OR
- When to plant Cucumbers in OR
- When to plant Zucchini in OR
- When to plant Butternut Squash in OR
- When to plant Basil in OR
- When to plant Sweet Corn in OR
- Look up another ZIP