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.
CULTURE: Mache, also known as corn salad or lamb's lettuce, grows well in cool or mild weather conditions. Mache can be planted anytime soil temperatures range from 41-68Â°F (5-20Â°C). Do not sow if soil temperatures have exceeded 68Â°F (20Â°C). At temperatures greater than 70Â°F (21Â°C) the seed will go dormant. In northern latitudes mache can be grown year-round utilizing open field, cold greenhouse, and high tunnel systems. In southern areas mache is adapted for open field winter production. Sow 1 apart in rows 4-18 apart.