A family is planning to build a raised planting area using a blend of peat moss, mulch , and a rich organic soil in which to grow the plants. They have been told first to place on the ground a layer of material that will allow for a proper drainage each time the plants are watered. Which of the following materials would be best to use for the first layer?

(1) concrete
(2) packed clay
(3) sandy gravel
(4) plastic sheeting
(5) tar like that used on roofs

Some people say gravel or plastic sheeting I am trying to find a article of what to do. I don't know were to find where to look.

They tell you that the water has to seep through it.

Therefore concrete, packed clay, plastic sheeting, and roof tar, all of which are supposed to be waterproof, will NOT work.
Use the sandy gravel.

I thought it was the right one but kept on reading on internet which made my confused

Thanks for helping me out I am so grateful

To determine which material would be best for the first layer to allow proper drainage, we need to consider the characteristics and properties of each option.

1) Concrete: Concrete is not a suitable material for drainage as it does not allow water to pass through it easily. It would likely restrict the drainage and lead to water pooling.

2) Packed clay: Clay is also not ideal for drainage as it has poor permeability. It tends to hold water, which can cause issues for plant roots as they need well-drained soil.

3) Sandy gravel: Sandy gravel is a good option for improving drainage as it allows water to flow through it easily. It prevents water from collecting and helps maintain a well-drained environment for the plants.

4) Plastic sheeting: Plastic sheeting is not ideal for drainage as it acts as a barrier, preventing water from passing through the soil. It may cause water to accumulate and potentially lead to root rot.

5) Tar like that used on roofs: Tar is not suitable for drainage purposes. It forms a waterproof barrier, hindering water movement and preventing proper draining.

Overall, the best material among the options provided for the first layer to allow proper drainage would be sandy gravel (option 3). It promotes water flow, prevents pooling, and maintains a well-drained environment for the plants to grow successfully.