How to Build a Plant Propagation Mist System

One way you can assure success when propagating plant seeds or cuttings is to make sure the rooting medium stays moist without becoming too wet. The best way to do this is to use a plant propagation mist system. You can buy all the components needed to assemble your system in most home stores, garden centers, hardware stores or on the Internet. Putting together a plant propagation mist system is much like putting together pieces in a Lego set. It is easy to design and assemble.

Things You'll Need

  • Flexible tubing
  • Misters
  • Connectors
  • Hangers, twist ties or wire

Instructions

    • 1

      Sketch out how your seed or cutting trays will lay out on your tables or benches. This way you will be able to plan where to hang your flexible tubing and calculate the distance the misting nozzles will be from the trays for the most efficient coverage.

    • 2

      Decide where and how you will set up the tubing that will carry water to the misters. For example, if you are setting up a propagation mist system in a greenhouse you can plan on clipping the tubing along any lateral supports that run along the back of your planting tables.

    • 3

      Calculate how many feet of tubing you need to cover the square footage of the propagation material surface area. You will need to make sure a single line can space misters at least 18 inches apart with sufficient water pressure to spray over any propagation trays fully.

    • 4

      Buy your tubing in rolls of 25, 50 or 100 feet. Using your measurements, you can also figure out how many misting heads, connectors, ells for right angles and end pieces you will need.

    • 5

      Screw the top of your tubing with the attached connecting head directly onto your spigot or water source if you only want to use the system manually. A better choice is to insert a timer onto the spigot and screw the tubing to the outlet of the timer. This way you will leave the water source on and the timer will turn the misting system on and off according to the schedule you set on the timer.

    • 6

      Run the tubing line from the water source (and timer) to where your first mist head needs to go. Cut the tubing completely at this point.

    • 7

      Push one end of the coupler (the mister comes screwed onto a slip-on coupler) onto your cut line with the mister facing outward so it will spray across the planting area.

    • 8

      Slide on another length of tubing to the open end of the coupler. Continue to slip lengths of tubing into misters/couplers then couplers back into tubing until the full length of your line is completed.

    • 9

      Use right-angled ell pieces if you need to turn sharp corners. These ells are pushed onto either end of the tubing just the same as the mist couplers.

    • 10

      Slide on an end cap when you reach the end of the tubing line so the water remains contained in the system. Some end caps take the form of clips. With this design you slide the clip on the end of the tube, fold the very end of the tube back on itself and pull down the clip so it holds the folded tube closed.

    • 11

      Use clips, wire or twist ties to connect your plant propagation mist system to existing supports or railings near your plant trays.

Tips & Warnings

  • If you are planning on building a large plant propagation system, make sure you have sufficient water pressure to provide spray coverage to the misters at the end of the line.
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Resources

  • Photo Credit Jupiterimages/liquidlibrary/Getty Images

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