The choice between raised and sunken beds really depends on the condition of the soil and the region, and perhaps also on your personal preferences. First, you need to answer the questions “what is the sunken bed and what is a raised bed” since knowing the differences between the two will also play a role in determining which one is best for the circumstances. Everyone has decided on benefits and can help improve soil health along with some other growing conditions.
Raised beds vs. sunken beds in the gardens
I have already raised beds in several properties before and love the fact that the soil heats up early and I can sit on the edge and weeding with free time. The problem is that they dry quickly. Lately, we have been experiencing trenches and sunken beds.
Since our region is dry in the desert, the method retains and directs the water, allowing us to irrigate less frequently and effectively move moisture to the roots of the plants. However, each method has several advantages related to specific regions and is not the only solution to gardening problems.
What is a raised bed?
When trying to decide whether to use raised beds over hollow beds, it is helpful to consider the area and type of terrain. Raised beds are useful in regions with temperate climates and heavy rains. It is easy to add soil changes to a raised bed to increase porosity and add nutrients. In addition, they can be built with anything, such as old bricks or just heaps of earth.
One of the main differences between raised and sunken beds is that raised beds heat up more quickly in the spring. They also keep the roots of the plants warmer, leaving less chance of freezing. However, a raised bed benefits from a thick layer of mulch to maintain moisture in the soil, as it will dry out faster than the underground soil.
What is an underwater bed?
Sunken beds serve various purposes and are very useful when there is little rain, excellent for desert climates or areas affected by drought. They are simply depressions in which the systems are installed. You can really get fantasy and trench from one plant to another, forcing the water to each set of roots.
Gardens submerged in sandy soil can be used to add compost and other elements to the site. Building walls around the garden submerged with organic material, captures moisture and simultaneously adds a slow release of nutrients. The hills also capture extra moisture and will add shade at certain times of the day to prevent the depression from drying out.
Is a raised or sunken garden bed better?
With all the advantages and differences between raised and sunken beds, it can still be difficult to decide which is right for you. Gardeners in the heavy parts of the rain in the Pacific Northwest, for example, will do well with raised beds. However, southern gardeners in arid areas or where the heat is high almost all year round should try sunken beds.
Any region could use both methods, but submerged gardens could create a swampy mess if the soil is clayey, while the raised beds will need daily watering if the soil is sandy. So consider your annual rainfall, temperatures and soil type before building.