Frost Dates for Rosamond, CA 93560
Last spring frost March 25 · First fall frost November 12 · 232 frost-free days · USDA Zone 8b
ZIP 93560 has about 22,100 people.
Long season: 232 frost-free days. Spring frost risk spans February 20–May 2 (71 days). Fall frost risk spans October 29–November 26 (28 days).
Frost probability for 93560
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 2 | March 25 | February 20 |
| Fall (first frost) | October 29 | November 12 | November 26 |
Dates come from NOAA 1971–2000 freeze probabilities at FAIRMONT (20.8 km away); the 50% date is the median year.
Which crops fit a 232-day season in Rosamond
In Rosamond (232 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Feb 18 | Apr 8–Apr 15 | 190 | fits: 80 days to maturity, 190 available after Apr 8. | Jul 13 |
| Pepper | Feb 11 | Apr 8–Apr 15 | 190 | fits: 75 days to maturity, 190 available after Apr 8. | Jul 18 |
| Lettuce | Jan 28 | Feb 25–Mar 4 | 267 | two-plantings: Plant Feb 25 and again by Sep 21; both mature before Nov 19. | Sep 21 |
| Carrots | — | Mar 4–Mar 11 | 274 | fits: 70 days to maturity, 274 available after Mar 4. | Sep 10 |
| Cucumber | Mar 4 | Apr 8–Apr 15 | 204 | two-plantings: Plant Apr 8 and again by Aug 16; both mature before Oct 29. | Aug 16 |
| Beans | — | Apr 1–Apr 15 | 218 | two-plantings: Plant Apr 1 and again by Aug 23; both mature before Nov 5. | Aug 23 |
| Peas | — | Jan 28–Apr 8 | 295 | fits: 65 days to maturity, 295 available after Jan 28. | Sep 1 |
| Zucchini | Mar 11 | Apr 8–Apr 15 | 204 | two-plantings: Plant Apr 8 and again by Aug 21; both mature before Oct 29. | Aug 21 |
| Onion | Dec 31 | Feb 25–Mar 11 | 267 | fits: 100 days to maturity, 267 available after Feb 25. | — |
| Spinach | — | Jan 28–Mar 18 | 309 | two-plantings: Plant Jan 28 and again by Oct 10; both mature before Dec 3. | Oct 10 |
| Kale | Jan 14 | Feb 25–Mar 11 | 281 | two-plantings: Plant Feb 25 and again by Sep 25; both mature before Dec 3. | Sep 25 |
| Broccoli | Jan 28 | Feb 25–Mar 11 | 267 | fits: 80 days to maturity, 267 available after Feb 25. | Aug 17 |
| Cabbage | Jan 28 | Feb 25–Mar 11 | 281 | fits: 70 days to maturity, 281 available after Feb 25. | Sep 10 |
| Radish | — | Jan 28–Apr 22 | 295 | two-plantings: Plant Jan 28 and again by Oct 11; both mature before Nov 19. | Oct 11 |
| Beets | — | Jan 28–Apr 22 | 295 | two-plantings: Plant Jan 28 and again by Sep 11; both mature before Nov 19. | Sep 11 |
| Potatoes | — | Mar 11–Mar 18 | 253 | fits: 90 days to maturity, 253 available after Mar 11. | — |
| Garlic | — | Nov 12 | 337 | overwinter: Plant Nov 12 to Dec 3; harvest the following summer. | Dec 3 |
| Strawberry | — | Feb 18–Apr 15 | 288 | perennial: A perennial: plant Feb 18; it fruits from the following year and keeps producing for several years. | — |
| Corn | Feb 25 | Apr 1–Apr 8 | 204 | fits: 75 days to maturity, 204 available after Apr 1. | Jul 25 |
| Pumpkin | Mar 11 | Apr 8–Apr 8 | 197 | fits: 100 days to maturity, 197 available after Apr 8. | Jun 30 |
| Cauliflower | Feb 11 | Mar 18–Apr 1 | 246 | fits: 75 days to maturity, 246 available after Mar 18. | Aug 22 |
| Swiss Chard | Jan 28 | Mar 11–Mar 11 | 253 | two-plantings: Plant Mar 11 and again by Sep 11; both mature before Nov 19. | Sep 11 |
| Arugula | — | Jan 28–Apr 22 | 309 | two-plantings: Plant Jan 28 and again by Oct 10; both mature before Dec 3. | Oct 10 |
| Brussel Sprouts | Jan 28 | Feb 25–Mar 11 | 281 | fits: 100 days to maturity, 281 available after Feb 25. | Aug 11 |
| Butternut Squash | Mar 11 | Apr 8–Apr 15 | 197 | fits: 100 days to maturity, 197 available after Apr 8. | Jun 30 |
| Eggplant | Feb 4 | Apr 8–Apr 15 | 190 | fits: 70 days to maturity, 190 available after Apr 8. | Jul 23 |
| Okra | Feb 25 | Apr 1–Apr 8 | 211 | two-plantings: Plant Apr 1 and again by Aug 21; both mature before Oct 29. | Aug 21 |
| Basil | Feb 18 | Apr 15–Apr 15 | 197 | two-plantings: Plant Apr 15 and again by Aug 16; both mature before Oct 29. | Aug 16 |
| Cilantro | — | Feb 25–Mar 18 | 267 | two-plantings: Plant Feb 25 and again by Sep 16; both mature before Nov 19. | Sep 16 |
| Parsley | Jan 14 | Apr 1–Apr 8 | 232 | fits: 70 days to maturity, 232 available after Apr 1. | Aug 27 |
| Celery | Jan 14 | Apr 1–Apr 15 | 232 | fits: 120 days to maturity, 232 available after Apr 1. | Jul 8 |
| Scallions | Jan 14 | Feb 25–Mar 11 | 281 | two-plantings: Plant Feb 25 and again by Sep 20; both mature before Dec 3. | Sep 20 |
| Turnip | — | Feb 25–Mar 11 | 281 | two-plantings: Plant Feb 25 and again by Sep 30; both mature before Dec 3. | Sep 30 |
| Kohlrabi | — | Feb 11–Feb 25 | 295 | two-plantings: Plant Feb 11 and again by Sep 25; both mature before Dec 3. | Sep 25 |
| Bok Choy | Feb 25 | Mar 18–Mar 25 | 246 | two-plantings: Plant Mar 18 and again by Sep 21; both mature before Nov 19. | Sep 21 |
| Collards | Jan 14 | Feb 25–Mar 11 | 281 | two-plantings: Plant Feb 25 and again by Sep 20; both mature before Dec 3. | Sep 20 |
| Cantaloupe | Mar 11 | Apr 8–Apr 15 | 190 | fits: 85 days to maturity, 190 available after Apr 8. | Jul 8 |
| Chives | Dec 31 | Apr 1–Apr 8 | 246 | fits: 90 days to maturity, 246 available after Apr 1. | — |
| Dill | — | Jan 28–Apr 22 | 295 | two-plantings: Plant Jan 28 and again by Sep 11; both mature before Nov 19. | Sep 11 |
| Oregano | Jan 14 | Apr 1–Apr 8 | 246 | fits: 80 days to maturity, 246 available after Apr 1. | — |
| Rosemary | Dec 31 | Apr 1–Apr 8 | 232 | fits: 80 days to maturity, 232 available after Apr 1. | — |
| Sage | Jan 28 | Apr 1–Apr 8 | 246 | fits: 75 days to maturity, 246 available after Apr 1. | — |
| Thyme | Jan 14 | Apr 1–Apr 8 | 246 | fits: 90 days to maturity, 246 available after Apr 1. | — |
| Calendula | Feb 11 | Mar 11–Mar 25 | 253 | two-plantings: Plant Mar 11 and again by Sep 16; both mature before Nov 19. | Sep 16 |
| Cosmos | Feb 25 | Mar 25–Apr 8 | 218 | two-plantings: Plant Mar 25 and again by Aug 16; both mature before Oct 29. | Aug 16 |
| Lavender | Dec 31 | Mar 25–Apr 8 | 253 | fits: 90 days to maturity, 253 available after Mar 25. | — |
| Marigolds | Feb 11 | Mar 25–Apr 1 | 218 | two-plantings: Plant Mar 25 and again by Aug 26; both mature before Oct 29. | Aug 26 |
| Melons | Mar 11 | Apr 8–Apr 15 | 190 | fits: 85 days to maturity, 190 available after Apr 8. | Jul 8 |
| Mint | — | Mar 25–Apr 8 | 253 | fits: 90 days to maturity, 253 available after Mar 25. | — |
| Nasturtiums | Feb 25 | Mar 25–Apr 1 | 218 | two-plantings: Plant Mar 25 and again by Aug 21; both mature before Oct 29. | Aug 21 |
| Pole Beans | — | Apr 1–Apr 15 | 211 | fits: 65 days to maturity, 211 available after Apr 1. | Aug 11 |
| Spaghetti Squash | Mar 11 | Apr 8–Apr 15 | 197 | fits: 90 days to maturity, 197 available after Apr 8. | Jul 10 |
| Sunflowers | — | Mar 25–Apr 8 | 218 | fits: 70 days to maturity, 218 available after Mar 25. | Aug 6 |
| Tomatillos | Jan 28 | Apr 1–Apr 8 | 197 | fits: 75 days to maturity, 197 available after Apr 1. | Jul 18 |
| Watermelon | Mar 11 | Apr 1–Apr 8 | 197 | fits: 80 days to maturity, 197 available after Apr 1. | Jul 13 |
| Yellow Squash | Mar 11 | Apr 8–Apr 15 | 204 | two-plantings: Plant Apr 8 and again by Aug 21; both mature before Oct 29. | Aug 21 |
| Zinnias | Feb 25 | Mar 25–Apr 8 | 218 | two-plantings: Plant Mar 25 and again by Aug 16; both mature before Oct 29. | Aug 16 |
Month by month in Rosamond
| Month | What to do |
|---|---|
| January | Start indoors: Celery (Jan 14), Collards (Jan 14), Kale (Jan 14), Oregano (Jan 14), Parsley (Jan 14), Scallions (Jan 14), +8 more. Direct sow from: Arugula (Jan 28), Beets (Jan 28), Dill (Jan 28), Peas (Jan 28), Radish (Jan 28), Spinach (Jan 28). |
| February | Start indoors: Eggplant (Feb 4), Calendula (Feb 11), Cauliflower (Feb 11), Marigolds (Feb 11), Pepper (Feb 11), Basil (Feb 18), +7 more. Direct sow from: Kohlrabi (Feb 11), Cilantro (Feb 25), Turnip (Feb 25). Transplant from: Broccoli (Feb 25), Brussel Sprouts (Feb 25), Cabbage (Feb 25), Collards (Feb 25), Kale (Feb 25), Lettuce (Feb 25), +2 more. Plant: Strawberry (Feb 18). |
| March | Start indoors: Cucumber (Mar 4), Butternut Squash (Mar 11), Cantaloupe (Mar 11), Melons (Mar 11), Pumpkin (Mar 11), Spaghetti Squash (Mar 11), +3 more. Direct sow from: Carrots (Mar 4), Potatoes (Mar 11), Sunflowers (Mar 25). Transplant from: Calendula (Mar 11), Swiss Chard (Mar 11), Bok Choy (Mar 18), Cauliflower (Mar 18), Cosmos (Mar 25), Lavender (Mar 25), +4 more. Last frost around March 25. |
| April | Direct sow from: Beans (Apr 1), Pole Beans (Apr 1). Transplant from: Celery (Apr 1), Chives (Apr 1), Corn (Apr 1), Okra (Apr 1), Oregano (Apr 1), Parsley (Apr 1), +17 more. |
| May | Succession plant lettuce and greens. Keep beds weeded and watered consistently. |
| June | Last sowing dates: Butternut Squash (Jun 30), Pumpkin (Jun 30). |
| July | Last sowing dates: Cantaloupe (Jul 8), Celery (Jul 8), Melons (Jul 8), Spaghetti Squash (Jul 10), Tomato (Jul 13), Watermelon (Jul 13), +4 more. |
| August | Last sowing dates: Sunflowers (Aug 6), Brussel Sprouts (Aug 11), Pole Beans (Aug 11), Basil (Aug 16), Cosmos (Aug 16), Cucumber (Aug 16), +10 more. |
| September | Last sowing dates: Peas (Sep 1), Cabbage (Sep 10), Carrots (Sep 10), Beets (Sep 11), Dill (Sep 11), Swiss Chard (Sep 11), +9 more. |
| October | Last sowing dates: Arugula (Oct 10), Spinach (Oct 10), Radish (Oct 11). |
| November | Direct sow from: Garlic (Nov 12). First frost around November 12. |
| December | Start indoors: Chives (Dec 31), Lavender (Dec 31), Onion (Dec 31), Rosemary (Dec 31). Last sowing dates: Garlic (Dec 3). |
Frequently Asked Questions
What is the last frost date for Rosamond, CA (ZIP 93560)?
The median last spring frost date for Rosamond, CA (ZIP code 93560) is around March 25. 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 February 20; one in ten it runs past May 2.
What is the first fall frost date in Rosamond, CA?
The median first fall frost date for Rosamond, CA is around November 12. 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 October 29 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Rosamond, CA?
The frost-free growing season in Rosamond is about 232 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 Rosamond (232 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Rosamond, CA?
Rosamond, CA 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 Rosamond, CA?
Start tomatoes indoors Feb 18 and plant out Apr 8 in Rosamond. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Rosamond?
Two: plant Feb 25 and again by Sep 21; both mature before Nov 19.
When do I plant garlic in Rosamond?
Nov 12 to Dec 3; it overwinters and is ready the following summer.
Can I get two tomato crops in Rosamond?
Yes: plant out Apr 8 for a summer crop, and set out a second round of transplants by Jul 13 for a fall crop.
Which nearby ZIP has a longer season?
Tehachapi (ZIP 93561) has 248 frost-free days, 16 more than Rosamond (ZIP 93560). See Tehachapi ZIP 93561 frost dates
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