When to Plant in Saint Petersburg, FL

In Saint Petersburg, the gardening calendar revolves around the critical frost dates of year-round for the last spring frost and year-round for the first fall frost, with a notably low count of 0 frost-free days. This information is essential for gardeners to plan their planting schedules effectively. Understanding these dates helps ensure that plants are protected from unexpected frosts and can thrive during the optimal growing season.

Given its humid subtropical microclimate, Saint Petersburg is well-suited for growing a variety of crops that thrive in warm, humid conditions. Crops like tomatoes, peppers, and sweet potatoes excel in this environment due to their heat and moisture needs. However, crops such as onions and carrots may struggle; they often require cooler temperatures for optimal growth. The high humidity can lead to issues such as rot and disease in these cooler-season crops.

What to plant now in Saint Petersburg

Spring: Start your tomato and pepper seeds indoors by late February to be ready for transplanting outdoors after the last frost on January 19. This timing ensures robust growth ahead of the bustling growing season.
Summer: As we move into summer, consider direct sowing heat-loving crops like okra and eggplant from mid-April through June. They thrive in the warm soil temperatures that define the Florida summer.
Fall: In late summer, around late August, it's time to sow fast-growing crops like radishes and turnips. These will flourish before the first frost hits on January 7, allowing for a fruitful fall harvest.
Winter: Winter is the time to prepare for next spring. From December, you can start planning your garden layout and ordering seeds, focusing on warm-weather plants that can be started indoors before January's transition.

In Saint Petersburg (0 frost-free days, a short season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.

Month by month in Saint Petersburg

Month	What to do
January	As we enter January, gardeners must prepare for the transition around the last spring frost on January 19. Protect delicate seedlings by ensuring they are planted appropriately and be ready to cover them if temperatures drop.
February	February is a pivotal month as the frost risk diminishes. Begin starting seeds for tomatoes and peppers indoors. Plan for transplanting these warm-season crops in early March when they're ready.
March	By March, you can safely transplant your indoor seedlings outside. Ensure that crops like cucumbers and beans are directly sown in the garden to take full advantage of spring's warmth.
April	With the frost risk greatly reduced, April is prime for planting a variety of crops. Focus on fast-growing greens and continue sowing warm-season vegetables for a bountiful spring harvest.
May	As temperatures rise, consider planting heat-sensitive crops like corn and squash in early May. Pay attention to watering, as the humid subtropical climate can lead to rapid evaporation.
June	June’s heat means a focus on monitoring moisture levels. Plant heat-loving varieties like okra and ensure adequate irrigation to maintain healthy, thriving plants under the humid sun.
July	In July, the garden continues to produce with late summer crops like eggplant and peppers. Check for pests and diseases that thrive in warm, humid conditions and manage as necessary.
August	August is when gardeners can start planning for fall crops. Sow quick-maturing varieties such as radishes and start preparing soil for the transition from summer to fall.
September	As autumn approaches, it's time to harvest late summer crops while beginning to sow fall-planted vegetables. Plan for the first frost on January 7 to ensure crops are harvested in time.
October	October is prime for planting your fall garden. Focus on hardy greens and root vegetables that can thrive before the frost hits, ensuring a continuous supply of fresh produce.
November	November is the last chance for planting fall crops. Ensure seedlings are protected and properly managed as the first frost approaches, allowing for yields before winter sets in.
December	In December, focus on garden maintenance and planning for the upcoming year. Organize seed orders and design planting layouts in preparation for spring planting after January's frost.

Frost dates for Saint Petersburg ZIP codes

ZIP	Last spring frost (50%)	First fall frost (50%)	Zone
33710	January 19	January 7	10b

FAQ

When is the last frost in Saint Petersburg?

The last frost in Saint Petersburg typically occurs on year-round, marking the end of significant frost risk for gardeners.

What vegetables grow best in Saint Petersburg?

Vegetables such as tomatoes, peppers, and sweet potatoes thrive in Saint Petersburg's humid subtropical climate, benefiting from its warm and moist growing conditions.

When should I plant tomatoes in Saint Petersburg?

Tomatoes should be started indoors by late February and transplanted outdoors after the last frost on year-round to ensure healthy growth and a fruitful harvest.

Can I garden year-round in Saint Petersburg?

While the humid subtropical climate allows extended growing seasons, it is best to tailor planting schedules according to frost dates for optimal results.

How does Plan My Garden help Saint Petersburg gardeners?

Plan My Garden provides specific advice based on local frost dates and climate conditions to help gardeners in Saint Petersburg optimize their planting schedules and crop choices.