Vegetables vary in the soil temperature they need to thrive, so find out before planting.

To help monitor that environment he built this sensor array which displays temperature and soil moisture readings. Temperature is quite simple.

So he shifted into building Soil IQ. The probe can track and stream soil nutrient content, pH, temperature, moisture and light data.

Check your soil temperature every other day using a garden thermometer or a cooking thermometer probe (5-inch probe) to about 6 inches into the ground and take an average reading in five spots.

The basis of the technology is that the efficiency of wireless power transmission to the sensor corresponds to the temperature of the sensor's heater and the moisture content of the surrounding soil.

Optimum soil temperatures are a vital part of the plant germination process and serve as a lifeline to bring a plant through full maturity.

The Edyn Garden Sensor was built after CEO Jason Aramburu spent years with farmers in Panama and Kenya, and it's a low-cost sensor designed to coach anyone to a better yield.

Fisher checks this with a soil probe thermometer. "We put it in and it gives us a temperature at 2- and 4-inch levels," Fisher said.