Understanding Soil Layers and Plant Growth - Illustrated Guide #269313 (License: Personal Use)

This educational illustration depicts a vertical slice of soil with three distinct horizons: the topsoil (dark brown), subsoil (reddish-brown), and parent material (light tan). Small green seedlings are shown sprouting at each layer, demonstrating root establishment depth, while a watering can pours water from above to simulate irrigation and moisture percolation.

Used on gardening, agriculture, or environmental science web pages to explain soil structure, plant germination, and sustainable watering practices; matches user intent for visual learning about foundational horticulture concepts.