• Macroplugs™ from Grodan® are designed for starting seeds and rooting cuttings.
• Plugs are round, 1.5-inch (46 mm), with a slit for easy plant cutting insertion.
• Fit perfectly into Gro-Block™ for seamless transplanting.
• Use with individual-cell trays like the Gro-Smart Tray Insert for best results.
• Grodan stone wool products offer consistent, reliable propagation.
• Uniform density and fibrous structure support manual and mechanical processing.
• Balanced water and nutrient distribution promotes optimal rooting and early growth.
• Dimensions: 1.5 in (46 mm).

• A heating mat designed to accelerate and improve the success of seed starting and germination.
• Features an innovative far-infrared film that warms up faster, and distributes soft heat more evenly.
• Crafted with IP-67 quad-layer PVC that’s flexible, resistant to wear-and-tear, and easy to wipe clean.
• Verifiable UL (E518635) & MET (E115128) certifications for electrical safety thru online directories.
• 20 x 20.75 in (50 x 53 cm).
• 80 - 87°F (27 - 30°C) heating range.
• Warms up to 20°F above ambient temp.
• 105 watts.
• Includes nylon bag.

• A heating mat designed to accelerate and improve the success of seed starting and germination.
• Features an innovative far-infrared film that warms up faster, and distributes soft heat more evenly.
• Crafted with IP-67 quad-layer PVC that’s flexible, resistant to wear-and-tear, and easy to wipe clean.
• Verifiable UL (E518635) & MET (E115128) certifications for electrical safety thru online directories.
• 10 x 20 in (25 x 50 cm).
• 80 - 87°F (27 - 30°C) heating range.
• Warms up to 20°F above ambient temp.
• 20 watts.
• Includes nylon bag.

• A heating mat designed to accelerate and improve the success of seed starting and germination.
• Features an innovative far-infrared film that warms up faster, and distributes soft heat more evenly.
• Crafted with IP-67 quad-layer PVC that’s flexible, resistant to wear-and-tear, and easy to wipe clean.
• Verifiable UL (E518635) & MET (E115128) certifications for electrical safety thru online directories.
• 20 x 20.75 in (50 x 53 cm).
• 80 - 87°F (27 - 30°C) heating range.
• Warms up to 20°F above ambient temp.
• 40 watts.
• Includes nylon bag.

Grodan® A-OK Improved Starter Plugs™ for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks™. The plugs come loose in a carton for those who prefer to saturate individually.

• Easy to use with propagation trays.
• Shipped as individual loose AO plugs (1.4x1.4x1.6) bulk in the carton (2,310).
• No shrink-wrap.

• Grodan® 1.5 inch Pargro® rockwool plugs.
• Dimensions: 1.4 x 1.4 x 1.6 in (3.5 x 3.5 x 4 cm).
• Unwrapped sheets in carton.

Super Sprouter® Double Thick 10 in x 20 in trays are double the thickness of our standard trays ensuring it will last season after season. These trays are the perfect solution for propagating your clones and seedlings with rock wool, seedling mix or starter plugs. The Super Sprouter® trays are available without holes to catch excess water and help to keep starts or plants moist and also with holes, to drain off excess water from the base of the cutting or seed. Raised channels are incorporated in the base of the trays to help air circulate under your pot or insert tray.

Warms root area approximately 10–20° F over ambient temperature to improve germination process. Helps gardeners have better success rates with seedlings and cuttings. Perfect for one standard 10 in x 20 in propagation tray. Heavy-duty construction makes this mat very durable. More than 20% larger than competitive mats. This allows even warming of your entire tray. More consistent heating with fewer hot spots than other seedling heat mats. Ed Hume seal of approval. 20 W. Dimensions: 10 in x 21 in.

• Easy to use: Plug heat mat into thermostat, place temperature probe.
• Temperature control range: 68 to 108°F (20 to 42°C).
• Back-lit digital display: Easily view and set temperatures.
• Maximum current rating: 8.3 Amps/1,000 W.
• Includes: 6-foot power cord and probe with suction cup.

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 oxygen at the roots can help maximize root growth and help minimize damping-off in young clones and seedlings. By elevating plants above the propagation tray’s bottom surface, the AirMax™ allows excess water to run off and holds plants above standing water. This helps to avoid oversaturated roots and promote proper drainage and airflow. Its low profile provides clear visibility to root development and unrestricted access to cuttings for proper care and monitoring, without disturbing delicate plants.

RapidStart® Professional is a proprietary blend of nutritive plant extracts and minerals that promote explosive root growth. Using RapidStart Professional encourages the formation of fine root hairs and lateral root branching, which in term will enhance plant vigor and yield.

• RapidStart is highly concentrated and is best used during the vegetative through early flower phases when active root growth occurs.
• We recommend pre-soaking stone wool cubes, plugs and flats with RapidStart Professional nutrient solution prior to seeding or propagating from cuttings for faster root growth and success.
• RapidStart Professional is compatible with soil, soilless medias, coir, hydroponics and is suitable for fertilizer injection systems.

• Increases the plants resistance to diseases.
• Promotes healthy roots and fine root hairs.
• Greatly improves root growth.
• Enhances root development.
• Works in all systems, media and environments.
• 1 liter (1 quart) bottle.

• Root, transplant, and crop biostimulator with two hormones.
• High phosphorus formula helps reduce transplant shock.
• Ideal for seed starting, cuttings, transplants, and other crop stages.
• Suitable for both indoor and outdoor use.
• Liquid concentrate.
• 1.2 kilograms (2.64 pounds).

RapidStart® is a plant nutrient used to promote root growth while enhancing plant vigor and yield. Strong root networks are linked to larger, more vigorous plants. RapidStart helps plants develop strong root networks. It can be used throughout the vegetative growth stage and in early flower stage to continue to promote root development.

RapidStart® is a plant nutrient used to promote root growth while enhancing plant vigor and yield. Strong root networks are linked to larger, more vigorous plants. RapidStart helps plants develop strong root networks. It can be used throughout the vegetative growth stage and in early flower stage to continue to promote root development.

RapidStart® is a plant nutrient used to promote root growth while enhancing plant vigor and yield. Strong root networks are linked to larger, more vigorous plants. RapidStart helps plants develop strong root networks. It can be used throughout the vegetative growth stage and in early flower stage to continue to promote root development.

RapidStart® is a plant nutrient used to promote root growth while enhancing plant vigor and yield. Strong root networks are linked to larger, more vigorous plants. RapidStart helps plants develop strong root networks. It can be used throughout the vegetative growth stage and in early flower stage to continue to promote root development.

• Rooting and fungicide liquid gel.
• Propagate all types of leaf and stem cuttings.
• Liquid gel formula ensures even coating.
• Stimulates rapid root development.
• 50 milliliter (1.7 oz) bottle.

• A premium commercial-grade rooting compound.
• Contains 0.40% indole-3-butyric acid (IBA) for optimal root development.
• Blended with a high density gel for maximum success rates.
• Provides essential nutrition to cuttings before roots form.
• High viscosity ensures easy and precise dipping for cloning.
• No mess, no spills, just effortless application every time.
• Suitable for delicate rooters; can be diluted with distilled water for use.
• 112 grams (4 ounces).