



🌿 Elevate your green thumb game—grow smarter, fresher, faster!
Root Riot Plant Starter Cubes are premium, pre-moistened sphagnum peat moss cubes designed for effortless seed starting and cutting rooting. Their balanced air-to-water ratio promotes healthy root development in both soil and hydroponic systems. Trusted by thousands with a 4.6-star rating, these cubes deliver clean, pesticide-free growth with zero mess, making them a must-have for modern, sustainable gardeners.
| Best Sellers Rank | #12,764 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #417 in Garden Fertilizers |
| Brand | HYDRO DYNAMICS |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 2,281 Reviews |
| Item Weight | 3.6 Pounds |
| Number of Items | 1 |
| Product Dimensions | 18"W x 8"H |
K**S
Terrific seed starting plugs
I purchased these plugs to use with our LettuceGrow hydroponic tower. I’ve had great fun choosing and starting my own seeds. Enter Root Riot plugs … Typically we harvest 2-4 plants for our weekly salads, so we usually start about 12 seeds every 2-3 weeks. These plugs arrive moist and ready to use; but since we stagger their use over many weeks, we lay the new plugs out on a cookie rack and let them dry out completely before storing. When we are ready to start seeds, we just rehydrate the needed number of plugs for a few minutes. We have had no issues with molding or algae growth when working with the dehydrated plugs and they perform just as well as they do when they are new. (We did have issues with both black mold and green algae when we tried some less expensive foam plugs.) The first pic shows the varying levels of growth and variety of seeds that we’ve got started now. (Cucumbers, peppers, lettuce and some flowers.) The missing plug was transferred to the tower last weekend! Cucs, peppers & flowers are destined for outside planting - and that front right tray (with all the baby lettuce sprouts) was just planted yesterday! The second pic of the tower (with varying levels of plant maturity) shows how the plants are growing. The Root Riot plugs are perfectly sized for the 2” baskets AND they fully support the mature greens in our Farmstand. The third pic shows how developed the roots are at harvest along with a typical salad. It’s cool knowing that our greens have not languished in a grocery store, have only been handled by us and have absolutely no pesticides. Added bonus, no dirt or sand to wash off when preparing the week’s salad. Greens don’t get more fresh! Bottom line: we wouldn’t be this successful if we were using inferior plugs. My only wish is that they came dehydrated so that I wouldn’t need to dry them upon arrival … but even so, this is an awesome product and is perfectly suited to our seed-starting needs.
B**Y
Great choice
Work fine. Less expensive than those sold by my hydrogarden company.
K**K
Easiest way to root your cuttings.
10 out of 10. I use these plugs in my home garden and at a commercial farm with 99%+ success rate. Using a heat mat under your trays to regulate temperature will increased speed of rooting. These plugs are great for transplanting into any growing medium. CloneX Cloning Gel recommended but cuttings will still root without it. Recommended using CloneX Clone Solution fertilizer to promote health growth and prevent leaf yellowing.
D**O
Works
If you want to transplant get these . products were moist .just great for planting needs. Definitely recommend.thanks.
B**D
timely shipping
Use hydro-dynamics for these type products if you have a choice with 3rd party vendors. All thing considered these are competitively priced so I would give it 5 stars but all these plug/sponge seed starters are way over priced for what you get unless you buy them in 2000+ quantity. If you already have the Styrofoam float rafts like I do from gurneys etc. they are excellent for controlling root water & minimizing damping off from over watering. They will fit just make sure the bottom of the sponge plug is all the way to the bottom of the hole in the raft so they will absorb water. As long as you have air flow & correct lighting you can leave your seedlings alone for a couple days. If not you still have to check them daily like any other seed starting system. ALWAYS, I say again, always water from the bottom no matter what system you use for healthy plants. I previously purchased large quantities of a similar product from this company when I was only starting a couple hundred plants at a time (tomatoes & peppers BTW but I hear they work great for other tall green plants as well) but have since switched to conventional soil-less seed starting mediums like Berger BM2 for input cost reasons. You can get this product from a variety of sources the product brand is decent quality & does what its advertised to do. Hydro-dynamics consistently acts with a sense of urgency when it come to getting stuff out on time & truth in advertising. I rarely have anything good to say about 3rd party sellers but hydro-dynamics is the exception they act like they want your business! Amazon should take responsibility for allowing other 3rd party vendors to drag their feet on shipping, communication & truth in advertising I give Amazon (negative) -5 stars on that one.
D**F
Cloning efficiency
As a long time gardener I have been cloning and seed germinating for some time, in the past using rockwool cubes was the only thing on the market at the time, or the use of straight perlite or vermiculite , since then the introduction of spagnum has made a much easier germination rate and cloning propagation in todays time ! I have used other spagnum pods but this bar and by far is much more efficient, make sure not to over water and if necessary just mist the pods till moist not saturated. The use of a RO water and PH level will help 5.0-5.3 is a good level to be. Some say this is not necessary but it will give your clones a better chance to rot , also make sure u do use clonex gel humidity in your dome will give u better results, once plants are under the lights make sure u have a heat mat under the bottom even a electric blanket will work if elevated off the bottom for radiant heat .Do not water for three days, check humidity from time to time on the 5 th day u should have roots . Mist the inside of your dome and by the 7th day u should be ready to transplant into bigger container or bigger mediums. This product is the best in my opinion on the market ! Happy growing 🥦🥦🥦
L**E
Love these Quality Plugs
These pre moistened, fully formed plugs come in a sealed bag. I bought 1400 of them as we are replacing our lawn with creeping thyme. I was imagining that they I could stand them up in rows in a tray, but they have a tapered shape and were not designed to stand upright on their own. These trays were the perfect solution:(https://smile.amazon.com/dp/B00C1T2REK?psc=1&ref=ppx_yo2_dt_b_product_detailshttps://smile.amazon.com/dp/B00C1T2REK?psc=1&ref=ppx_yo2_dt_b_product_details) Thyme seeds have to be about the smallest seeds on the planet and are supposed to take up to 20 days to germinate. I covered them with a thin layer of fine vermiculite. They rooted in less than a week and although the seedlings are VERY tiny and delicate, they seem to be very happy in these plugs.
J**F
Good product
Plug of our choice
Trustpilot
3 days ago
2 weeks ago