Soil Temperatures in Your Georgia Garden

With the recent warm temperatures it is easy to be seduced into planting your summer crops now.   It is tempting to plant our vegetable transplants and seeds; we can’t wait for that first juicy tomato are a crunch pepper!  Be aware that soil temperatures are very important for success with your early summer plantings.

Soil Temperatures in Your Georgia Garden
Pepper Seedlings

Soil temperatures need to be 60-65 degrees F and rising at the 4 inch soil depth before you plant your summer crops.

If you install a transplant too early the roots won’t grow and the plant will just be sitting in the soil.  If we have a large amount of rain, which seems to be the norm this year, your new plant will just be sitting in wet soil.  This could mean early disease issues.

This morning the Ballground weather station, near my home, indicated a 4-inch soil temperature of 54.6 degrees F. In Griffin the 4-inch soil temperature was 56.8 degrees F while Valdosta reported 63.5 degrees F.

If the soil temperatures are not warm enough for seed germination, early seed plantings could rot.

The roots need to be actively growing to absorb water and nutrients.

If we plant and fertilizer summer vegetables too early we will be wasting fertilizer.  The plant roots simply can’t absorb it.  This fertilizer could get washed away, wasting your time and money. Also, this leached fertilizer could be problematic for our watersheds.

Determine your soil temperatures.

To determine your soil temperature at the 4 inch depth visit www.georgiaweather.net.  Click on the station nearest your garden.  Or, you can see a summary of soil temperatures across the state.

Soil Temperatures in Your Georgia Garden
Newly planted tomatoes. Waiting until the soil temperatures are warm enough is one step to success for your summer garden.

Remember the rule of thumb is play it safe and wait!

Happy Gardening!

Becky Griffin

Becky Griffin

Community and School Garden Coordinator at UGA Extension
Becky Griffin helps school and community gardeners succeed! This includes organizing school garden teacher training with county agents, assisting schools with STE(A)M goals, and creating resources on starting and sustaining successful gardens.

Becky is a Georgia Certified Beekeeper and works with community and school gardeners to increase beneficial insect habitat.In 2017, she created the Georgia Pollinator Census project.Ask her about it!
Becky Griffin

Latest posts by Becky Griffin (see all)

1 thought on “Soil Temperatures in Your Georgia Garden

  1. Despite out recent rash of warm weather, we know that cold evenings and mornings are still the norm. Great idea to check soil temperatures regularly!

Leave a Reply