Rapitest Dial Soil ThermometerTransplant shock in seedlings can be avoided if the soil temperature is warm enough to plant. Most seeds require warm soil to a depth of 3" (8cm) to encourage germination. Seeds and seedlings planted in soil that is to cold exhibit symptoms similar to those planted in soil with poor nutrient values. Planting by the calendar disregards weather variations. Planting based on soil temperatures helps ensure plants get a good start. Rapid test stainless