Suspension submerged plant bed capable of being used at low temperature

The utility model discloses a suspension submerged plant bed capable of being used at a low temperature. The suspension submerged plant bed comprises a planting bed and a buoyancy layer. Plants can be planted on the planting bed, the buoyancy layer is connected with the planting bed, the planting bed is made of a high-density polyethylene resin material, and the plants on the planting bed comprise summer aquatic plants and winter aquatic plants. The planting bed of the suspension submerged plant bed capable of being used at the low temperature is made of the high-density polyethylene resin material, and accordingly the suspension submerged plant bed is corrosion-resistant, anti-freezing and environment-friendly, and is long in service life.