Planting boxes

A planting box, comprising:

• a support frame body including an accommodating cavity, wherein the support frame body includes a plurality of vent holes, the plurality of vent holes being in communication with the accommodating cavity;
• a top cover disposed over an end of the support frame body, wherein a suction fan is provided on the top cover, the suction fan is configured to discharge air in the accommodating cavity, and the top cover includes a circulation cavity;
• a fill light disposed on a side of the top cover facing the support frame body;
• a bottom cover disposed on another end of the support frame body;
• and
• a circulation fan disposed on the top cover, wherein the circulation fan is in communication with the plurality of vent holes and the circulation cavity;
• wherein
• the support frame body includes a plurality of support rods and an enclosure portion;
• the plurality of support rods extend along a height direction of the planting box, the plurality of support rods are arranged at an interval around the accommodating cavity, and an end of each of the plurality of support rods is connected to the top cover;
• the enclosure portion is enclosed to form the accommodating cavity;
• and
• for the each of the plurality of support rods,
• the support rod includes a hollow flow channel, the plurality of vent holes are provided on the support rod, the plurality of vent holes are in communication with the hollow flow channel, and the circulation fan is in communication with the hollow flow channel.