Freebase(0.00 / 0 votes)Rate this definition: Chemical property. A chemical property is any of a material's properties that becomes evident during a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.
Ground Temperature. The best time to plant your corn seeds is when the soil temperature reaches an average of 50 degrees Fahrenheit. You can determine the average ground temperature in your garden using a soil thermometer -- available at most garden stores.
Modern varieties of sweet corn, field corn, and ornamental corn all descend from Indian corn. Serendipity Sweet Corn Germination: Prepare the soil with compost or other organic matter. One week after frost or when the soil consistently reaches 60 degrees F, plant the corn 1 deep and 8-12 apart. Planting blocks of four short rows ensures good pollination. Germination should take place in 5-6 days.