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.
Wait to plant until the soil temperature is right. In general, corn should be planted when soil temperatures are near 50 Â°F. Seed will absorb about 30 percent of its weight in water, and temperature does not affect water imbibition much.