Why will soil grow plants better than sand or clay?

Answer 1

Sand and clay are soil. The best soil for most plants is a mixture of sand silt and clay (the 3 sizes of soil particles). Some plants do better in sandy soil, such as cacti. Some do better in clay soil, such as the water garden plants I grow.

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Answer 2

Soil particles will have minerals and potassium more than sandy or clay. a Soil is the mixture of all minerals and natural salts in a right amount and the soil could hold and retrieve wetness more. Sand will only absorb water but cannot give it to a plant and clay will always be wet , but it cannot supply water to roots. So soil is the best thing to grow plants .

Answer 3

Sand allows the water and nutrients to flow through it, leaving the plant easily dried out. Clay holds too much water and can drown it. Good soil is a good mixture of sand and humus to better support the plants and hold the necessary nutrients in the soil for the roots.

Answer 4

Soil has many different nutrients in it, where clay and sand do not. Also, allows air and water to move freely around root systems.