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USDA Hardiness Zone 9b

Frost Dates for 33811 — Lakeland, Florida

Averages from Lakeland 2, Fl US, the nearest reporting station, 1 miles away.

Plant tender crops after January 26, and expect the first autumn freeze around January 9. That leaves about 349 frost-free days.

Last spring frost
January 26

50% probability

First fall frost
January 9

50% probability

Growing season
349 days

frost-free

Hardiness zone
9b

25 to 30°F annual low

Planting calendar for 33811

What to do and when, based on the frost normals for Lakeland, Florida
WhenWhat to do
November 17 – December 1

Start peppers and aubergines indoors

They need eight to ten weeks under lights before they can go out.

December 1 – December 15

Start tomatoes indoors

Six to eight weeks gives a transplant big enough to set fruit early.

December 29 – January 12

Sow peas, spinach, lettuce, radish outdoors

These tolerate light frost and prefer to germinate in cool soil.

January 26 onward

Transplant tomatoes, peppers, basil, squash, cucumbers

The average last freeze has passed — still watch the actual forecast.

by October 17

Sow the autumn crop of carrots, beets and brassicas

They need about twelve weeks to size up before growth stops.

by December 26

Harvest tender crops, or be ready to cover them

A first freeze two weeks early is well within normal variation.

January 9 onward

Plant garlic, mulch beds, lift tender bulbs

Garlic wants a cold spell; bare soil loses structure over winter.

What these dates mean

Wait until after January 26 to put tender plants — tomatoes, peppers, basil, squash — in the ground. That is the date by which half of years in Lakeland, Florida are past their last freeze. Harvest before January 9, which leaves roughly 349 frost-free days.

ZIP 33811 sits in USDA hardiness zone 9b, meaning the average coldest night of the year falls between 25 to 30°F. Zone decides what survives the winter; frost dates decide when to plant each spring. They are different questions, and a plant can pass one and fail the other.

These are thirty-year NOAA averages for 1991–2020, not a forecast. Any individual year can frost two to three weeks either side of these dates, so check the actual forecast before planting out.

Other zone 9b ZIP codes in Florida