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    • If you want to grow clones and seedlings to perfection, you should use domes, propagation trays, and rooting plugs. Using these grow accessories, particularly during the early stages of cloning and propagation ensures ideal conditions for healthy growth. At Groindoor.com, we have these and more to make your gardening experience as smooth as silk!

    What are seedling trays?

    To hold either the seed or clone or the seed or clone starting medium, you need a seed starting tray. These act as the bedrock of a propagation system and make transplanting simple for growers, especially if a root plug is being used.

    Seedling trays help with water and nutrient drainage ensuring a fresh solution for the plants. The holes in the tray make sure all seeds or clones receive the nutrients.

    What are humidity domes?

    Humidity domes are an essential component of your seedling system. These domes cover the seedling tray and maintain moisture levels at an ideal 75%, and temperature at an ideal range of 75-80o F. Many domes come with vents as you will need to reduce humidity levels as the plant takes root. Growers tend to go with hygrometers to maintain humidity and heat mats to elevate temperatures.

    When do I remove the humidity dome while cloning?

    You should gradually open the dome’s vents for the first 5-7 days. The roots will generally appear after 7-10 days. After the roots have appeared, you can remove the dome completely, ensuring there are no signs of stress. However, it is essential to watch for signs of dehydration during the first week. If you come across signs of wilting, it is better to close the vents immediately.

    What is a seed plug?

    Seed starting plugs or rooting plugs help you in planting seeds into the propagation tray. The plugs do not affect a plant’s pH and ensure good aeration while maintaining moisture and nutrient levels for the cutting or seedling. You can find them in bulk quantities at Groindoor.com.

    How to start seeds in trays with a seed starter?

    It is a relatively simple step-by-step process.

    1. Ensure the seedling has access to moisture by soaking the rooting plug.
    2. Put the seed into the rooting plug and place the plug into the seeding tray insert.
    3. Make sure you maintain the plug’s moisture levels, as rehydrating them can be very difficult if they become dry.
    4. Once you see the roots, you can move the plant to a larger container without having to remove the plug.

    Check out our learning center to get complete how to guides on everything you may need to know about learning How to clone a plant to our complete guide on germinating seeds. If you still need any help, feel free to reach out to our expert growers at 866-GRO-INDR.

    Categories
    • Super Sprouter 78 Cell Stonewool Tray- 1.5 In Square

      Super Sprouter 78 Cell Stonewool Tray- 1.5 In Square

      Super Sprouter 78 Cell Stonewool Tray is perfect for 1.5 in round or square stonewool plugs. The tray fits inside a standard 10 x 20 flat. This insert sits elevated from the bottom of the flat for good drainage and prevents roots from getting smashed.

      $15.55 $12.99
    • Mondi Propagation Tray, 10x20 Mondi Propagation Tray, 10x20

      Mondi Propagation Tray, 10x20

      Deep, continuous channels and level fit wide ridges prevent water pooling and provide better stability for propagation media. Super reinforced sides and lip with thick plastic and UV protection for durability and long life. Professionally engineered...

      $146.00 $116.36
    • Mondi Propagation Tray, 10x20 - No Holes - Pack of 50 Mondi Propagation Tray, 10x20 - No Holes - Pack of 50

      Mondi Propagation Tray, 10x20 - No Holes - Pack of 50

      Deep, continuous channels and level fit wide ridges prevent water pooling and provide better stability for propagation media. Super reinforced sides and lip with thick plastic and UV protection for durability and long life. Professionally engineered...

      $143.00 $98.31
    • Super Sprouter Singled Out Propagation Pot, 2 in. - Pack of 50

      Super Sprouter Singled Out Propagation Pot, 2 in. - Pack of 50

      Super Sprouter Singled Out Premium Mesh Tray is custom built to accommodate 50 each Singled Out pots or can be used as a stand alone mesh tray. Heavy duty design gives the mesh tray added strength and durability. Singled Out Pots are great for...

      $12.00 $11.37
    • Super Sprouter Airmax Tray Insert (50/Cs)

      Super Sprouter Airmax Tray Insert (50/Cs)

      Super Sprouter AirMax Tray Inserts help provide outstanding drainage and aeration to clones grown in Grodan Stonewool A-OK Starter Plugs. These mesh tray inserts are designed to allow high levels of oxygen to enter the root zone in your clone trays. More...

      $158.00 $123.72
    • Super Sprouter Clear Cut Custom Tray No Holes (35/Cs)

      Super Sprouter Clear Cut Custom Tray No Holes (35/Cs)

      Made to use with The Super Sprouter Clear Cut Dome and Clear Cut Inserts. The Super Spouter Clear Cut Custom Tray is a great base for this system, and can be used on it's own if what you're propagating doesn't mind extra moisture. The dome clips...

      $176.75 $156.82
    • Super Sprouter Clear Cut Insert Tray W/ Holes (35/Cs)

      Super Sprouter Clear Cut Insert Tray W/ Holes (35/Cs)

      Made to use with The Super Sprouter Clear Cut Dome and Clear Cut Custom Tray. This clear insert allows you to look at your starts for roots by simply lifting the insert to view all your starts at once, avoiding direct handling. The Clear Cut Insert...

      $114.80 $104.39
    • Super Sprouter Clear Cut Dome 7 Inch (35/Cs)

      Super Sprouter Clear Cut Dome 7 Inch (35/Cs)

      Made to use with The Super Sprouter Clear Cut Custom Tray and Clear Cut Inserts. The Super Sprouter Clear Cut Dome uses ultra-clear plastic to maximize light penetration for your starts. The Clear Cut Dome includes dual top vents and a...

      $266.00 $228.45
    • Super Sprouter Double Thick Tray 10 X 20 - W/ Hole (50/Cs)

      Super Sprouter Double Thick Tray 10 X 20 - W/ Hole (50/Cs)

      Super Sprouter Propagation Tray - 10x20 Super Sprouter Propagation Trays are great for propagating your seedlings with rock wool, seedling mix or starter plugs. Super Sprouter trays come without holes so that the tray can catch excess water to keep...

      $170.50 $141.78
    • Super Sprouter Quad Thick 10 X 20 Tray - No Hole (25/Cs)

      Super Sprouter Quad Thick 10 X 20 Tray - No Hole (25/Cs)

      Super Sprouter Propagation Tray - 10x20 Super Sprouter Propagation Trays are great for propagating your seedlings with rock wool, seedling mix or starter plugs. Super Sprouter trays come without holes so that the tray can catch excess water to keep...

      $139.25 $114.02
    • Super Sprouter Double Thick Tray 10 X 20 - No Hole (50/Cs)

      Super Sprouter Double Thick Tray 10 X 20 - No Hole (50/Cs)

      Super Sprouter Propagation Tray - 10x20 Super Sprouter Propagation Trays are great for propagating your seedlings with rock wool, seedling mix or starter plugs. Super Sprouter trays come without holes so that the tray can catch excess water to keep...

      $159.00 $135.09
    • Super Sprouter 72 Cell Plug Tray - Square Holes (100/Cs)

      Super Sprouter 72 Cell Plug Tray - Square Holes (100/Cs)

      With Super Sprouter it's easy to find the exact inserts you want to use with your starts. From square, to circle, to their patent pending star patter, there is the perfect shape to go with a combination of grow media. If you were looking to mix and...

      $474.00 $373.16
    • Super Sprouter 72 Cell 6/Pk Tear Away Inserts (100/Cs)

      Super Sprouter 72 Cell 6/Pk Tear Away Inserts (100/Cs)

      With Super Sprouter it's easy to find the exact inserts you want to use with your starts. From square, to circle, to their patent pending star patter, there is the perfect shape to go with a combination of grow media. If you were looking to mix and...

      $165.00 $121.95
    • Super Sprouter Propagation Tray 10 X 20 W/ Holes (100/Cs)

      Super Sprouter Propagation Tray 10 X 20 W/ Holes (100/Cs)

      Super Sprouter Propagation Tray - 10x20 Super Sprouter Propagation Trays are great for propagating your seedlings with rock wool, seedling mix or starter plugs. Super Sprouter trays come without holes so that the tray can catch excess water to keep...

      $189.00 $176.55
    • Super Sprouter Deluxe Propagation Kit

      Super Sprouter Deluxe Propagation Kit

      If you are looking for an easy, budget-friendly way to start your seeds or clones, you need the Super Sprouter Deluxe Propagation Kit. This includes everything you need to start your grow, and at around $40, you can't beat this offer! Whether you are...

      $61.97 $48.89
    • IHORT QPlug 1.6" Square Plug 45/45, Case of 1,500 IHORT QPlug 1.6" Square Plug 45/45, Case of 1,500

      IHORT QPlug 1.6" Square Plug 45/45, Case of 1,500

      Q plugs are the key to maintaining a clean growing environment. They are specifically designed to germinate seedlings and rooting cuttings in a closely populated tray system. They are all natural and compostable, Q plugs proprietary growing medium is...

      $329.60 $256.51
    • General Hydroponics Rapid Rooter Tray - 50 Cell Tray & Plugs General Hydroponics Rapid Rooter Tray - 50 Cell Tray & Plugs

      General Hydroponics Rapid Rooter Tray - 50 Cell Tray & Plugs

      Use Rapid Rooter for robust early rooting that supports explosive plant growth! Rapid Rooter plugs are all natural soilless grow plugs made of composted tree bark and organic materials. These plugs are perfect for seedlings or cuttings. Transplant plugs...

      $27.95 $19.10

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