Clayey Soil has the highest water holding capacity
Clayey soil is known to have the highest water holding capacity among the given options. This is due to various factors that contribute to its ability to retain water effectively.

Particle Size
- Clay particles are very small in size, which allows them to pack closely together, creating tiny spaces where water molecules can be trapped.
- The small size of clay particles also increases the surface area available for water to adhere to, leading to greater water retention.

Porosity
- Clayey soil has high porosity, meaning it has many small pores and spaces between particles that can hold water.
- These pores trap water, preventing it from draining quickly through the soil.

Capillary Action
- Clay soil has strong capillary action, which allows water to move upwards through the soil against the force of gravity.
- This capillary action helps clayey soil retain water for longer periods.

Organic Matter Content
- Clay soil often contains a higher amount of organic matter, which can further enhance its water holding capacity.
- Organic matter acts like a sponge, absorbing and retaining water within the soil.

Conclusion
In conclusion, clayey soil is the best option for water holding capacity due to its small particle size, high porosity, capillary action, and organic matter content. This makes it an ideal choice for plants that require consistent moisture in the soil.