
The first is drainage performance. Since raised flower beds or raised garden beds are in direct contact with the ground, good drainage is required. The bottomless design of the raised garden bed can effectively prevent the root system from being over-saturated and rot due to excessive water, and also avoid the phenomenon of insufficient water and dry root system. Another advantage is that the roots can easily absorb oxygen for healthy growth.
To improve drainage, we might consider placing rocks at the bottom of the garden bed, especially in a 32-inch garden bed or in areas with poor ground drainage. Placing gravel or gravel at the bottom of the raised bed will help improve drainage and air circulation. As the soil settles and becomes compacted over time, the rocks at the bottom of the bed provide room for excess water to drain from the roots of the plants.

The second is durability. If the bottom of the raised bed pot is in direct contact with the soil, over time, the microorganisms in the soil can easily cause the bottom to rust or even crack. Bottomless Corrugated Metal Raised Garden Beds feature a premium waterproof and rust-resistant coating that not only resists wind and rain, but also means you don't have to worry about rusting.
What's more, there's even more room for bottomless raised bed planters. In the state where the bottom is closed, the capacity is relatively small and it will be relatively closed.
Usually, we use various organic materials such as wood, leaves, cardboard, etc. to fill the bottom of the garden bed. If the bottom is closed and various materials are piled together, the capacity is relatively small. The bottomless bed allows the organic matter to directly touch the ground, and the overall space is larger.

Although raised bed planters with bottoms are easy to move and effective against insects, they also have many disadvantages, especially in terms of drainage performance. If we water too much, we also can't drain the excess water.
Furthermore, in the case of a closed type, the permeability of the soil becomes poor. Because the air cannot circulate smoothly, the microorganisms in the soil are very likely to be inactivated.
We all know that the roots of plants need oxygen the most, so we can't give plants an enclosed space. In the long run, the air is not circulated and the plants grown are not healthy.