Frost Dates for Port Saint Lucie, FL 34984
Port Saint Lucie has 6 ZIP codes. The Port Saint Lucie, FL frost page lists all of them with their dates.
Last spring frost January 19 · First fall frost January 29 · 10 frost-free days · USDA Zone 10a
ZIP 34984 has about 20,200 people, one of 6 ZIP codes in Port Saint Lucie.
Short season: 10 frost-free days.
Frost probability for 34984
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | February 23 | January 19 | — |
| Fall (first frost) | December 20 | January 29 | — |
Dates come from NOAA 1971–2000 freeze probabilities at FT PIERCE (21.6 km away); the 50% date is the median year.
Which crops fit a 10-day season in Port Saint Lucie
In Port Saint Lucie (10 frost-free days, a short season), 9 of 56 planner crops fit outright, 1 get two plantings, 5 need an indoor start, 2 need a faster variety, 38 don't reliably mature, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Dec 15 | Feb 2–Feb 9 | 0 | no-fit: Needs 80 days; Port Saint Lucie has 0 after Feb 2. | — |
| Pepper | Dec 8 | Feb 2–Feb 9 | 0 | no-fit: Needs 75 days; Port Saint Lucie has 0 after Feb 2. | — |
| Lettuce | Nov 24 | Dec 22–Dec 29 | 45 | fits: 45 days to maturity, 45 available after Dec 22. | — |
| Carrots | — | Dec 29–Jan 5 | 52 | tight: Direct-sow only; pick a variety under 52 days. | — |
| Cucumber | Dec 29 | Feb 2–Feb 9 | 0 | no-fit: Needs 60 days; Port Saint Lucie has 0 after Feb 2. | — |
| Beans | — | Jan 26–Feb 9 | 0 | no-fit: Needs 60 days; Port Saint Lucie has 0 after Jan 26. | — |
| Peas | — | Nov 24–Feb 2 | 73 | fits: 65 days to maturity, 73 available after Nov 24. | — |
| Zucchini | Jan 5 | Feb 2–Feb 9 | 0 | no-fit: Needs 55 days; Port Saint Lucie has 0 after Feb 2. | — |
| Onion | Oct 27 | Dec 22–Jan 5 | 45 | no-fit: Needs 100 days; Port Saint Lucie has 45 after Dec 22. | — |
| Spinach | — | Nov 24–Jan 12 | 87 | fits: 40 days to maturity, 87 available after Nov 24. | Dec 27 |
| Kale | Nov 10 | Dec 22–Jan 5 | 59 | fits: 55 days to maturity, 59 available after Dec 22. | — |
| Broccoli | Nov 24 | Dec 22–Jan 5 | 45 | no-fit: Needs 80 days; Port Saint Lucie has 45 after Dec 22. | — |
| Cabbage | Nov 24 | Dec 22–Jan 5 | 59 | head-start: Even planted out Dec 22, the outdoor season is about 11 days short; choose an early variety or grow under cover. | — |
| Radish | — | Nov 24–Feb 16 | 73 | two-plantings: Plant Nov 24 and again by Dec 28; both mature before Feb 5. | Dec 28 |
| Beets | — | Nov 24–Feb 16 | 73 | fits: 55 days to maturity, 73 available after Nov 24. | Nov 28 |
| Potatoes | — | Jan 5–Jan 12 | 31 | no-fit: Needs 90 days; Port Saint Lucie has 31 after Jan 5. | — |
| Garlic | — | Jan 29 | 115 | overwinter: Plant Jan 29 to Feb 19; harvest the following summer. | Feb 19 |
| Strawberry | — | Dec 15–Feb 9 | 66 | perennial: A perennial: plant Dec 15; it fruits from the following year and keeps producing for several years. | — |
| Corn | Dec 22 | Jan 26–Feb 2 | 0 | no-fit: Needs 75 days; Port Saint Lucie has 0 after Jan 26. | — |
| Pumpkin | Jan 5 | Feb 2–Feb 2 | 0 | no-fit: Needs 100 days; Port Saint Lucie has 0 after Feb 2. | — |
| Cauliflower | Dec 8 | Jan 12–Jan 26 | 24 | no-fit: Needs 75 days; Port Saint Lucie has 24 after Jan 12. | — |
| Swiss Chard | Nov 24 | Jan 5–Jan 5 | 31 | no-fit: Needs 55 days; Port Saint Lucie has 31 after Jan 5. | — |
| Arugula | — | Nov 24–Feb 16 | 87 | fits: 40 days to maturity, 87 available after Nov 24. | Dec 27 |
| Brussel Sprouts | Nov 24 | Dec 22–Jan 5 | 59 | no-fit: Needs 100 days; Port Saint Lucie has 59 after Dec 22. | — |
| Butternut Squash | Jan 5 | Feb 2–Feb 9 | 0 | no-fit: Needs 100 days; Port Saint Lucie has 0 after Feb 2. | — |
| Eggplant | Dec 1 | Feb 2–Feb 9 | 0 | no-fit: Needs 70 days; Port Saint Lucie has 0 after Feb 2. | — |
| Okra | Dec 22 | Jan 26–Feb 2 | 0 | no-fit: Needs 55 days; Port Saint Lucie has 0 after Jan 26. | — |
| Basil | Dec 15 | Feb 9–Feb 9 | 0 | no-fit: Needs 60 days; Port Saint Lucie has 0 after Feb 9. | — |
| Cilantro | — | Dec 22–Jan 12 | 45 | tight: Direct-sow only; pick a variety under 45 days. | — |
| Parsley | Nov 10 | Jan 26–Feb 2 | 10 | no-fit: Needs 70 days; Port Saint Lucie has 10 after Jan 26. | — |
| Celery | Nov 10 | Jan 26–Feb 9 | 10 | no-fit: Needs 120 days; Port Saint Lucie has 10 after Jan 26. | — |
| Scallions | Nov 10 | Dec 22–Jan 5 | 59 | head-start: Even planted out Dec 22, the outdoor season is about 1 days short; choose an early variety or grow under cover. | — |
| Turnip | — | Dec 22–Jan 5 | 59 | fits: 50 days to maturity, 59 available after Dec 22. | — |
| Kohlrabi | — | Dec 8–Dec 22 | 73 | fits: 55 days to maturity, 73 available after Dec 8. | Dec 12 |
| Bok Choy | Dec 22 | Jan 12–Jan 19 | 24 | head-start: Even planted out Jan 12, the outdoor season is about 21 days short; choose an early variety or grow under cover. | — |
| Collards | Nov 10 | Dec 22–Jan 5 | 59 | head-start: Even planted out Dec 22, the outdoor season is about 1 days short; choose an early variety or grow under cover. | — |
| Cantaloupe | Jan 5 | Feb 2–Feb 9 | 0 | no-fit: Needs 85 days; Port Saint Lucie has 0 after Feb 2. | — |
| Chives | Oct 27 | Jan 26–Feb 2 | 24 | no-fit: Needs 90 days; Port Saint Lucie has 24 after Jan 26. | — |
| Dill | — | Nov 24–Feb 16 | 73 | fits: 55 days to maturity, 73 available after Nov 24. | Nov 28 |
| Oregano | Nov 10 | Jan 26–Feb 2 | 24 | no-fit: Needs 80 days; Port Saint Lucie has 24 after Jan 26. | — |
| Rosemary | Oct 27 | Jan 26–Feb 2 | 10 | no-fit: Needs 80 days; Port Saint Lucie has 10 after Jan 26. | — |
| Sage | Nov 24 | Jan 26–Feb 2 | 24 | no-fit: Needs 75 days; Port Saint Lucie has 24 after Jan 26. | — |
| Thyme | Nov 10 | Jan 26–Feb 2 | 24 | no-fit: Needs 90 days; Port Saint Lucie has 24 after Jan 26. | — |
| Calendula | Dec 8 | Jan 5–Jan 19 | 31 | head-start: Even planted out Jan 5, the outdoor season is about 19 days short; choose an early variety or grow under cover. | — |
| Cosmos | Dec 22 | Jan 19–Feb 2 | 0 | no-fit: Needs 60 days; Port Saint Lucie has 0 after Jan 19. | — |
| Lavender | Oct 27 | Jan 19–Feb 2 | 31 | no-fit: Needs 90 days; Port Saint Lucie has 31 after Jan 19. | — |
| Marigolds | Dec 8 | Jan 19–Jan 26 | 0 | no-fit: Needs 50 days; Port Saint Lucie has 0 after Jan 19. | — |
| Melons | Jan 5 | Feb 2–Feb 9 | 0 | no-fit: Needs 85 days; Port Saint Lucie has 0 after Feb 2. | — |
| Mint | — | Jan 19–Feb 2 | 31 | no-fit: Needs 90 days; Port Saint Lucie has 31 after Jan 19. | — |
| Nasturtiums | Dec 22 | Jan 19–Jan 26 | 0 | no-fit: Needs 55 days; Port Saint Lucie has 0 after Jan 19. | — |
| Pole Beans | — | Jan 26–Feb 9 | 0 | no-fit: Needs 65 days; Port Saint Lucie has 0 after Jan 26. | — |
| Spaghetti Squash | Jan 5 | Feb 2–Feb 9 | 0 | no-fit: Needs 90 days; Port Saint Lucie has 0 after Feb 2. | — |
| Sunflowers | — | Jan 19–Feb 2 | 0 | no-fit: Needs 70 days; Port Saint Lucie has 0 after Jan 19. | — |
| Tomatillos | Nov 24 | Jan 26–Feb 2 | 0 | no-fit: Needs 75 days; Port Saint Lucie has 0 after Jan 26. | — |
| Watermelon | Jan 5 | Jan 26–Feb 2 | 0 | no-fit: Needs 80 days; Port Saint Lucie has 0 after Jan 26. | — |
| Yellow Squash | Jan 5 | Feb 2–Feb 9 | 0 | no-fit: Needs 55 days; Port Saint Lucie has 0 after Feb 2. | — |
| Zinnias | Dec 22 | Jan 19–Feb 2 | 0 | no-fit: Needs 60 days; Port Saint Lucie has 0 after Jan 19. | — |
Month by month in Port Saint Lucie
| Month | What to do |
|---|---|
| January | Start indoors: Butternut Squash (Jan 5), Cantaloupe (Jan 5), Melons (Jan 5), Pumpkin (Jan 5), Spaghetti Squash (Jan 5), Watermelon (Jan 5), +2 more. Direct sow from: Potatoes (Jan 5), Sunflowers (Jan 19), Beans (Jan 26), Pole Beans (Jan 26), Garlic (Jan 29). Transplant from: Calendula (Jan 5), Swiss Chard (Jan 5), Bok Choy (Jan 12), Cauliflower (Jan 12), Cosmos (Jan 19), Lavender (Jan 19), +15 more. Last frost around January 19. First frost around January 29. |
| February | Transplant from: Butternut Squash (Feb 2), Cantaloupe (Feb 2), Cucumber (Feb 2), Eggplant (Feb 2), Melons (Feb 2), Pepper (Feb 2), +6 more. Last sowing dates: Garlic (Feb 19). |
| March | Transplant warm-season crops outdoors. Sow beans, cucumbers, and squash. |
| April | Main warm-season planting window. Direct sow melons and sweet corn. |
| May | Succession plant lettuce. Keep beds irrigated as temperatures climb. |
| June | Monitor for heat stress. Harvest zucchini and cucumbers frequently. |
| July | Harvest regularly to encourage continued production. Watch for pests. |
| August | Start fall cool-season crops: broccoli, kale, beets, and carrots. |
| September | Plant fall lettuce, spinach, arugula, and radishes. |
| October | Start indoors: Chives (Oct 27), Lavender (Oct 27), Onion (Oct 27), Rosemary (Oct 27). |
| November | Start indoors: Celery (Nov 10), Collards (Nov 10), Kale (Nov 10), Oregano (Nov 10), Parsley (Nov 10), Scallions (Nov 10), +8 more. Direct sow from: Arugula (Nov 24), Beets (Nov 24), Dill (Nov 24), Peas (Nov 24), Radish (Nov 24), Spinach (Nov 24). Last sowing dates: Beets (Nov 28), Dill (Nov 28). |
| December | Start indoors: Eggplant (Dec 1), Calendula (Dec 8), Cauliflower (Dec 8), Marigolds (Dec 8), Pepper (Dec 8), Basil (Dec 15), +8 more. Direct sow from: Kohlrabi (Dec 8), Cilantro (Dec 22), Turnip (Dec 22), Carrots (Dec 29). Transplant from: Broccoli (Dec 22), Brussel Sprouts (Dec 22), Cabbage (Dec 22), Collards (Dec 22), Kale (Dec 22), Lettuce (Dec 22), +2 more. Plant: Strawberry (Dec 15). Last sowing dates: Kohlrabi (Dec 12), Arugula (Dec 27), Spinach (Dec 27), Radish (Dec 28). |
Frequently Asked Questions
What is the last frost date for Port Saint Lucie, FL (ZIP 34984)?
The median last spring frost date for Port Saint Lucie, FL (ZIP code 34984) is around January 19. 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.
What is the first fall frost date in Port Saint Lucie, FL?
The median first fall frost date for Port Saint Lucie, FL is around January 29. 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 December 20 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Port Saint Lucie, FL?
The frost-free growing season in Port Saint Lucie is about 10 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 Port Saint Lucie (10 frost-free days, a short season), 9 of 56 planner crops fit outright, 1 get two plantings, 5 need an indoor start, 2 need a faster variety, 38 don't reliably mature, 1 crop is perennial.
What USDA hardiness zone is Port Saint Lucie, FL?
Port Saint Lucie, FL is in USDA hardiness zone 10a (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 Port Saint Lucie, FL?
Start tomatoes indoors Dec 15 and plant out Feb 2 in Port Saint Lucie. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Port Saint Lucie?
One spring planting around Dec 22.
When do I plant garlic in Port Saint Lucie?
Jan 29 to Feb 19; it overwinters and is ready the following summer.
Can I grow Celery in Port Saint Lucie?
Not reliably outdoors. Needs 120 days; Port Saint Lucie has 10 after Jan 26.
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