A useful soil test answers a specific question.

UF/IFAS test options, price, and turnaround

Yard Wizard’s full UF/IFAS Test B soil-testing service is $25 per sample. It includes representative collection, form preparation, the current $10 UF/IFAS laboratory fee, submission, and a basic walkthrough of the report. Each distinct lawn, bed, or problem area that needs its own result is a separate sample.

The current UF/IFAS Landscape and Vegetable Garden Soil Test Form lists the lab-only Test A at $3 per sample. Test A reports soil pH and whether lime is required. Lab-only Test B costs $10 per sample and adds phosphorus, potassium, calcium, magnesium, sulfur, boron, copper, manganese, and zinc, along with applicable lime and fertilizer guidance.

UF/IFAS says the report is emailed or mailed 3–6 days after the sample reaches the Extension Soil Testing Laboratory in Gainesville. Shipping time comes before that laboratory window, so allow roughly one to two weeks from collection to results.

Best time to test in west-coast Florida

Soil can be sampled during most of the year when it is not saturated. The most useful time is before a planned fertilizer decision, major landscape installation, pH correction, or renovation—early enough that the report arrives before products are selected.

For Pinellas County turf, testing before the spring fertilization window or near the end of the summer rainy season can support fall planning. Do not collect immediately after fertilizing or liming, and do not mix visibly different areas into one sample. UF/IFAS suggests checking pH every two to three years unless a specific issue calls for earlier testing.

How a representative lawn sample is collected

One handful from a problem spot does not represent an entire lawn. UF/IFAS instructs homeowners to collect small amounts from 10–15 locations across a consistent area, sample the upper 2–4 inches for turf, combine the cores in a clean plastic bucket, and air-dry the mixed soil before submission.

Front and back lawns, landscape beds, imported fill, and isolated problem areas may need separate samples. Each sample should represent one reasonably uniform management area and be labeled so the report can be tied back to the correct location.

What a soil test does not tell you

UF/IFAS does not test landscape soil for nitrogen because nitrogen changes rapidly in Florida’s warm, humid conditions. The standard soil form also does not diagnose nematodes, disease organisms, insects, herbicide injury, irrigation failure, shade, or mowing damage.

A report is one part of diagnosis. Turf symptoms, irrigation performance, rooting depth, compaction, sunlight, maintenance history, and plant species still need to be considered before recommending a corrective treatment.

Why testing matters in Pinellas County

Pinellas County prohibits phosphorus application unless a soil test documents a phosphorus deficiency. Testing can therefore prevent an unnecessary or prohibited application and help distinguish a nutrient question from a cultural problem.

More information is not always more useful: UF/IFAS notes that Test A may be sufficient for homeowners using complete fertilizers, while Test B supports more tailored decisions involving individual nutrients. The test should match the decision being made.