To Wildfeuer, the world is, perhaps, just more spiritual than many see it. Each constellation of the zodiac, for instance, has a relationship to earth, air, fire or water. Likewise, each plant. Root crops like radishes are earth. Leaf plants like lettuce are water.
Flowers are air.
Fruit, which requires warmth to mature, is fire. The moon charts the course. So if the moon is in fiery Aries, start tomatoes. Tomorrow, if the moon is in earthy Taurus, plant radishes. How we time sowing and gardening activities can enhance these influences or hinder them.