Hydroponics

1. A planter comprising:

a longitudinal body defining at least two liquid channels, the two liquid channels comprising:

a first liquid channel; and

a second liquid channel that is distinct from the first liquid channel; and

at least two plant holders defined in the longitudinal body and spaced apart on the longitudinal body,

wherein:

the first liquid channel extends form a first end to a first inlet of a first plant holder of the at least two plant holders;

the second liquid channel extends from the first end to a second inlet of a second plant holder of the at least two plant holders;

the longitudinal body further defines:

a third liquid channel that extends from a first outlet of the first plant holder toward a second end of the longitudinal body, the second end opposite the first end; and

a fourth liquid channel that extends from a second outlet of the second plant holder toward the second end; and

each of the at least two liquid channels are in fluid communication with a corresponding plant holder of the at least two plant holders.

2. The planter of claim 1 , wherein the longitudinal body includes a divider configured to divide at least a portion of a longitudinal conduit of the longitudinal body into the at least two liquid channels.

3. The planter of claim 1 , in which the at least two plant holders are alternatively spaced on opposed sides over a length of the longitudinal body, and further comprising at least one longitudinally extending gas channel, the gas channel having gas outlets along a length of the longitudinal body between a first end of the longitudinal body and a second end of the longitudinal body.

4. The planter of claim 1 , further comprising:

a first connecting formation at a first end of the longitudinal body; and

a second connecting formation at a second end of the longitudinal body, the second end opposite the first end.

5. The planter of claim 1 , wherein:

each of the at least two plant holders includes inlet located above an outlet to permit gravitational liquid flow into the plant holder through the inlet opening and liquid flow from the plant holder through the outlet, and

at least one of the at least two plant holders is in fluid flow communication with one of the at least two liquid channels via the inlet and outlet of the at least one of plant holder.

6. The planter of claim 1 , further comprising an external attachment formation associated with a particular plant holder of the at least two plant holders, the external attachment formation configured to receive a plant support.

7. The planter of claim 6 , further comprising the plant support, the plant support includes a creeper trellis configured to support a portion of a creeper plant that grows from the particular plant holder, and wherein the external attachment formation is located below a plant holder mouth of the particular plant holder.

8. The planter of claim 1 , further comprising a planting insert shaped and dimensioned to fit into a mouth of a particular plant holder of the at least two plant holders.

9. The planter of claim 8 , wherein the planting insert comprises a tray, the tray comprising:

a body;

an inlet opening; and

a planar base including drainage slits configured to permit liquid drainage.

10. The planter of claim 8 , wherein the planting insert comprises a seeding clip, the seeding clip comprising:

a body configured to cover a portion of the mouth of the particular plant holder; and

a plate having a slot shaped to engage a stem of a plant.

11. The planter of claim 1 , wherein:

the third liquid channel extends from the first outlet of the first plant holder to the second end of the longitudinal body; and

the fourth liquid channel extends from the second outlet of the second plant holder to the second end of the longitudinal body.

12. A planter tower comprising:

a plurality of planters coupled together to form an elongate upright planter with plant holders extending from sides of the planter tower, at least one planter of the plurality of planters comprising:

a longitudinal body defining at least two liquid channels, the two liquid channels comprising:

a first liquid channel having a first channel inlet opening and a first channel outlet opening, a first flow path of the first liquid channel extends from the first channel inlet opening to the first channel outlet opening; and

a second liquid channel that is distinct from the first liquid channel; and

at least two plant holders defined in the longitudinal body, the plant holders spaced on an outer perimeter of the longitudinal body, each one of the at least two plant holders in fluid flow communication with one of the at least two liquid channels; and

at least one end member shaped and dimensioned to connect onto an end of the plurality of planters connected together, wherein the at least one end member comprises a top end member attached at a top end of the plurality of planters connected together, the top end member configured to direct liquid toward the first liquid channel and the second liquid channel.

13. The planter tower of claim 12 , wherein the at least one end member comprises a bottom end member attached at a bottom end of the plurality of planters connected together, the bottom end member configured to direct liquid from the first liquid channel and the second liquid channel.

14. The plant tower of claim 12 wherein the at least two plant holders include at least three plant holders defined in the longitudinal body, each one of the at least three plant holders in fluid flow communication one of the at least two liquid channels.

15. A greenhouse comprising:

an array of planter towers including at least one planter comprising:

a longitudinal body defining at least two liquid channels, the two liquid channels comprising:

a first liquid channel having a first channel inlet opening and a first channel outlet opening, wherein a first flow path of the first liquid channel extends from the first channel inlet opening to the first channel outlet opening; and

a second liquid channel that is distinct from the first liquid channel; and

at least two plant holders defined in the longitudinal body, the plant holders spaced on an outer perimeter of the longitudinal body, each one of the at least two plant holders in fluid flow communication with one of the at least two liquid channels; and

at least one end member shaped and dimensioned to connect onto an end of a planter tower of the array of planter towers connected together, wherein the at least one end member comprises a top end member attached at a top end of the planter tower of the array of planter towers connected together, the top end member configured to direct liquid toward the first liquid channel and the second liquid channel.

16. The greenhouse of claim 15 , further comprising a device selected form the group of devices consisting of: an air conditioner, a high pressure fan, a damper, a coiled cooler, a geothermal heater, a geothermal cooler, a heat pump, a humidity controller, and an infra-red controller.

17. The greenhouse of claim 15 , further comprising:

a liquid circulation system coupled to the first liquid channel and the second liquid channel; and

a nutrient supply dosing pump connected to the liquid circulation system and configured to provide nutrients into the liquid circulation system; or

a filter connected to the liquid circulation system and configured to filter a liquid of the liquid circulation system.

18. A planter comprising:

a longitudinal body defining at least two liquid channels, the two liquid channels comprising:

a first liquid channel having a first channel inlet opening and a first channel outlet opening, a first flow path of the first liquid channel extends from the first channel inlet opening to the first channel outlet opening; and

a second liquid channel that is distinct from the first liquid channel;

at least two plant holders defined in the longitudinal body and spaced apart on the longitudinal body, wherein each of the at least two liquid channels are in fluid communication with a corresponding plant holder of the at least two plant holders;

an external attachment formation associated with a particular plant holder of the at least two plant holders, the external attachment formation configured to receive a plant support; and

the plant support, the plant support includes a creeper trellis configured to support a portion of a creeper plant that grows from the particular plant holder, wherein the external attachment formation is located below a plant holder mouth of the particular plant holder.

19. A planter comprising:

a longitudinal body defining at least two liquid channels, the two liquid channels comprising:

a first liquid channel having a first channel inlet opening and a first channel outlet opening, a first flow path of the first liquid channel extends from the first channel inlet opening to the first channel outlet opening; and

a second liquid channel that is distinct from the first liquid channel;

at least two plant holders defined in the longitudinal body and spaced apart on the longitudinal body, wherein each of the at least two liquid channels are in fluid communication with a corresponding plant holder of the at least two plant holders; and

a planting insert shaped and dimensioned to fit into a mouth of a particular plant holder of the at least two plant holders, wherein the planting insert comprises a seeding clip, the seeding clip comprising:

a body configured to cover a portion of the mouth of the particular plant holder; and

a plate having a slot shaped to engage a stem of a plant.