Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
Waiting weeks for a cutting to grow roots is the quiet heartbreak of every plant lover. You snip a healthy stem, follow every tutorial, and then… nothing. The right rooting hormone powder tilts the odds in your favor by giving cuttings the specific auxin (a natural plant growth signal) they need to push out roots fast. This guide walks through nine of the most talked-about options, from single-ingredient dusts to multi-blend formulas, so you can pick one that actually matches the plants you propagate.
I’m Rikta — the founder and writer behind Lawn Gear Lab. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
Each product below was chosen because it fills a specific job — if you need a gentle starter for houseplant cuttings or a concentrated powder for stubborn hardwood branches. Here is the verdict on the best rooting hormone powder for your propagation setup.
Our Picks at a Glance
How To Choose The Best Rooting Hormone Powder
The most important factor is IBA concentration — that is the synthetic auxin (a plant growth hormone) that signals root development. A 0.1% strength works for delicate houseplants and softwood cuttings, while 1.6% is for stubborn hardwood cuttings like woody shrubs and dormant branches. If you put a high-strength powder on a soft cutting, you may actually slow it down. The second thing to consider is if you want a pure rooting powder or a multi-ingredient blend that also includes microbial bacteria, mycorrhizae (beneficial fungi that help roots absorb water and nutrients), or seaweed extract for an all-in-one plant health boost.
Match the strength to the cutting type
Softwood cuttings — think coleus, basil, or tender new growth — root easily with a low IBA powder around 0.1% to 0.3%. Semi-hardwood cuttings like many houseplants and woody ornamentals do best with a medium range of 0.4% to 0.8%. Hardwood cuttings — dormant branches, evergreens, grapevines, and trees — need the highest strength, often 1.6% IBA, to crack through tougher bark tissue and trigger rooting.
Consider the form and the extras
Powder rooting hormone is the simplest to apply: you dip the damp end of a cutting into the powder, tap off the excess, and plant. Some powders also include corn-steep liquor, humic acid (a natural soil amendment that helps roots take up nutrients), or soluble silicon to strengthen stems against disease. These extras turn the hormone into a more complete starter mix, but they also raise the price. If you propagate dozens of cuttings at a time, you may want a pure powder that is free of extra additives so you can control exactly what goes into your soil.
Quick Comparison
| Model | Best For | IBA Strength | Weight | Item Count | Amazon |
|---|---|---|---|---|---|
| Stash Blend Premium★ Best Overall | Multi-ingredient growth boost | Not specified | 8 oz | 1 | Amazon |
| Bonide Bontone IIAlso Great | General houseplant & transplant success | 0.1% | 9.6 oz (pack of 2) | 2 | Amazon |
| Garden Safe Take RootBest Value | Fast-dissolving mix for transplanting | 0.1% | 4 oz (2-pack) | 2 | Amazon |
| OHP Hormodin #3 | Professional use on evergreens & dormant cuttings | 0.8% | 8 oz | 1 | Amazon |
| Rooting Compound (Hormodin) | High-volume propagation | 0.8% | 8 oz | 1 | Amazon |
| Ferti-lome Rooting Powder | Budget-friendly houseplant rooting | Not specified | 3.2 oz | 1 | Amazon |
| Root Rush | Fast results from a compact jar | Not specified | 1.76 oz | 1 | Amazon |
| Hormex #16 | Stubborn hardwood & woody cuttings | 1.6% | 21.27 g | 1 | Amazon |
| Hormex Combo #1, 3, 8 | Whole-garden variety | 0.1–0.8% | 2.25 oz | 1 | Amazon |
In‑Depth Reviews
1. Stash Blend Premium Plant Additive Root Hormone
Our pick — over 4.5★ from 350+ verified ratings; the strongest balance of quality and price.
A complete plant supplement that works as a rooting hormone, fertilizer, and soil builder in one.
This is not just a rooting hormone — it is a blend that combines corn-steep liquor, seaweed powder, humic acid, mycorrhizae (beneficial fungi), microbial bacteria, and soluble silicon. The idea is that you replace several separate products (rooting powder, fertilizer, and soil inoculant) with one 8-ounce jar. Owners rate it 4.7 stars from 350 reviews, and the top repeating praise is the all-in-one convenience: the stuff simplifies feeding and rooting into a single step, with one buyer saying their plants “shot up in growth within a couple days.”
The mixing ratio runs 1:32 to 2:32 (one to two parts additive to 32 parts water), so a single jar stretches across a whole growing season. At 8 ounces, it weighs the same as the Hormodin #3 jug but contains a broader range of nutrients. This makes it a strong pick if you are a soil-focused gardener who wants to build microbial life, not just trigger root growth.
All-in-one value: If you want to simplify your shelf of bottles and give your plants a broad nutrient boost during propagation, this is a smart, high-quality choice that owners keep repurchasing.
The honest fit: It is best for soil gardeners who appreciate microbial amendments — not for someone looking for a traditional dip-and-plant powder with a guaranteed IBA percentage.
Best for: Gardeners who want one product for rooting cuttings plus general plant health, without buying separate bottles for fertilizer and mycorrhizae.
Think twice if: You need a precise IBA concentration for hard-to-root woody species — the effect here is gentler and less predictable on dormant hardwood.
2. Bonide Bontone II Rooting Powder, 1.25 oz (Pack of 2)
The crowd favorite that gives cuttings roots in just over a week.
This is the product the internet talks about most — 15,000+ owners give it a solid 4.4-star average, and the reviews pages are full of stories about monstera and snake plant cuttings sprouting roots in “just over a week.” The active ingredient is indole-3-butyric acid (IBA) at a mild 0.1% concentration, which is exactly right for the average home gardener who propagates houseplants, ornamentals like azaleas and mums, and vegetable transplants. You simply dip the cut end of a clipping into the powder, tap off the excess, and place it in moist soil.
The two-pack gives you 2.5 total ounces of powder across two bottles. That is enough for dozens of cuttings without running out mid-season. The recurring gripe among owners is that each bottle arrives looking less than half full — the loose powder settles in transit, so the visual volume can be disappointing. But the quality and consistency win out: the effectiveness and root-growth counts are the two highest-scoring aspects by a wide margin, meaning most buyers see exactly the quick results they expect.
At 9.6 ounces for the pair, this is significantly heavier than the compact 1.76-ounce Root Rush. If you propagate a steady stream of plants from spring through fall, this two-pack is the smarter buy — you get double the product at a budget-friendly price point.
Why 15,000+ owners love it
- Gentle 0.1% IBA works on houseplants, ornamentals, and transplants without burning stems
- Two-pack means double the quantity for nearly the same cost as a single jar
- Also usable on seeds and bulbs — shake in a bag to coat before planting
The trade-off to know
- Each bottle looks about half full due to powder settling — not a short-weight issue, but it surprises first-time buyers
- 0.1% IBA is too gentle for woody hardwood cuttings that need a stronger push
Perfect propagation starter: If you are rooting houseplant cuttings (pothos, monstera, snake plant) or transplanting seedlings, this is the safest and most-trusted option on the list.
skip it if: Your garden is all woody shrubs and dormant branches — you need a higher IBA formula like Hormex #16 (1.6%) to trigger roots on hardwood.
3. Garden Safe Take Root Rooting Hormone, 2-Ounce (2-Pack)
A simple, fast-dissolving powder that pairs well with rooting gel for near-perfect results.
Garden Safe Take Root uses indole-3-butyric acid at 0.1% IBA — the same gentle concentration as the Bonide Bontone II — and comes in a two-pack that totals 4 ounces of powder. The active ingredient is chemically similar to the auxin plants naturally produce (indole-3-acetic acid), so there is minimal shock when you apply it. Owners note that it dissolves quickly in water if you want to create a liquid dip rather than a dust. The brand is also known for its line of naturally derived pest controls, so it fits right into a broader organic-style garden routine.
The honest catch that experienced owners mention is that the powder works best when combined with a rooting gel like Clonex to form a thick paste — several buyers report 100% success using the combo, but note that the powder alone yields “mediocre” results on its own. This is not a dealbreaker, just a technique worth knowing. If you are propagating roses, African violets, or coleus, this is a cost-effective entry point.
Value angle: At this budget-friendly tier, you get a recognizable brand with a clean formula and enough powder to start dozens of rose cuttings. It dissolves fast for making a water-based dip — a nice versatility for a simple rooting hormone.
Reach for this if: You are building a full propagation toolkit and plan to experiment with powder-plus-gel methods. It is a cheap way to start.
Look elsewhere if: You want a single product that works powerfully as a standalone dip — the Bonide or Hormex lines deliver more consistent solo results.
4. OHP Hormodin #3
The reliable workhorse that professional nursery owners choose for evergreens and dormant cuttings.
Hormodin #3 is a formulation of indole-3-butyric acid (IBA) at 0.8% strength, designed specifically for “the more difficult to root varieties,” as the product description states — evergreens, ornamental shrubs, and dormant leafless cuttings. This is the same professional tier that commercial greenhouses use, and it comes in a generous 8-ounce jug. Owners give it 4.5 stars from nearly 200 reviews, and the consensus is that it delivers dependable rooting for species that resist lower-strength powders. One owner improved cactus propagation “tenfold” with this formula, while another got excellent results on grapevine clippings.
The 0.8% IBA concentration is roughly eight times stronger than the Bonide Bontone II (0.1%). That means it is better suited for semi-hardwood and hardwood cuttings. You should not use it on soft new growth from houseplants — the high auxin signal can overpower a tender stem. The jug is the same 8-ounce size as the Stash Blend, so it is a bulk buy for someone who propagates many woody cuttings each season. If your primary plant is woody ornamentals and you want a professional-grade tool, this is the one.
Grower-level reliability: When you need consistency on stubborn species — evergreens, rhododendrons, dormant branches — this is the powder that seasoned nursery operators trust. The 8-ounce volume goes a long way at just a dip per cutting.
Grab this for: Woody ornamentals, evergreens, and any cutting you have failed to root twice before.
Skip for: Soft herbs, tender houseplants, or beginners who want one product for everything — the 0.8% is too aggressive for delicate stems.
5. Rooting Compound (Hormodin), 1/2 Pound
One half-pound jug handles up to 17,500 cuttings — serious volume for serious propagators.
This is the same 0.8% IBA formula as the OHP Hormodin #3 but packaged in a larger 8-ounce (half-pound) jug that the manufacturer says is good for roughly 17,500 cuttings. That number is not a typo — a tiny dip per cutting is all you need, so one jar lasts years for a hobbyist or a full season for a small nursery. Owners rate it 4.6 stars from over 900 reviews, making it among the most positively reviewed rooting compounds on the market. The feedback is heavy with phrases like “works amazing for dahlias” and “cloning is easier” — consistent, happy results across many plant types.
The biggest difference between this and the OHP Hormodin #3 jug is the brand and the exact packaging; both use 0.8% IBA and both come in 8-ounce jugs. The ownervoice here emphasizes that it is “the best plant hormone for rooting starts” for hard-to-root species like rhododendrons. You can even soak stressed cuttings in a diluted mix for 24-48 hours to coax roots out. Note that the ratio of 17,500 cuttings per jug means you will be using this for years — so if you only propagate a few plants a year, the 1.76-ounce Root Rush is more practical.
Bulk buy that works: If you run a community garden, sell rooted cuttings, or simply never want to buy rooting powder again, this jug is the most cost-effective path. The 0.8% IBA covers most semi-hardwood and hardwood needs.
Buy it if: You propagate dozens to hundreds of cuttings each season and want the best per-cutting cost. Dahlia growers and cactus collectors specifically rave about this one.
Hold off if: You only root a few tomato suckers or rose stems each spring — the smaller Bonide or Root Rush will serve you better without 8 ounces of powder sitting around.
6. Ferti-lome Rooting Powder, 2 oz
A straightforward cut-dip-plant powder with a cult following among long-time gardeners.
Ferti-lome is a well-known brand in the lawn and garden world, and this 2-ounce rooting powder is as no-frills as it gets: you cut, you dip, you plant. The label says it is for rooting houseplants and ornamental cuttings, making it a perfect entry-level pick. One owner who has been gardening for 20 years calls it the “best I’ve ever used” and reports “freakishly fast roots.” Another says their flowers and plants “now show their love for me” since switching to Ferti-lome products. It scores 4.4 stars from 59 ratings, so the sample is smaller, but the sentiment is overwhelmingly positive.
The small can weighs 3.2 ounces total, making it the most compact option on this list — easy to store in a drawer or carry to a greenhouse bench. The IBA concentration is not stated in the available data, which is note if you track exact strengths. At 2 ounces of powder, it is similar in size to the Root Rush (1.76 ounces) but from a more established fertilizer brand. The main caveat is that a few owners mention receiving cans that look like they have been opened or are only a third full — this appears to be a packaging issue rather than a product defect.
Old-school simplicity: This is a classic rooting powder that has been on the shelf for years. If you want to dip a few cuttings without reading a label full of ingredients, this is your pick.
Best for: Beginner gardeners who just want a reliable, cheap rooting powder for their houseplant cuttings and don’t need multi-blend extras.
Skip if: You are skeptical of unlisted IBA percentages — the data does not specify the strength, so you cannot guarantee it matches your cutting type.
7. Root Rush Rooting Powder for Cuttings & Clones, 50g
A tiny jar that promises results in as little as four days — and some owners see it happen.
Root Rush is a 50-gram (1.76 ounces) jar from Green Rush Nutrients, a brand known in the hydroponics and cloning space. The product claims you can see root development “in as little as 4 days” if you take a cutting at a 45-degree angle, dip it in the powder, tap off excess, and plant it in a growing medium. A number of owners confirm the speed — “very quick results” is a common phrase, and one reviewer notes that their cuttings in dirt are “very happy” with no leaf loss. The rating is 4.1 stars from 148 reviews, which is solid if not the top of this list.
The small jar size (1.76 ounces) is about a fifth the volume of the Bonide two-pack. That is fine for someone who clones a handful of plants each month, but if you are propagating a whole garden, you will run out fast. The IBA concentration is not stated in the available data, so the exact hormone strength is unclear — and there are isolated reports of a bad batch where cuttings yellowed and died. The packaging also seems inconsistent: one buyer received what appeared to be seaweed extract instead of rooting powder. For the price, the tiny jar represents a premium cost per ounce, so it is best treated as a trial-size.
Fast results from a small package: If you only need a small amount of rooting hormone for a handful of cuttings and want the promise of four-day results, this is an interesting trial. The brand has an enthusiastic fan base among clone growers.
Best for: Hydroponic growers and cloners who want a small, fresh jar for a specific project. The 45-degree cut method is standard, and the speed claim is supported by many owner reports.
Skip for: Large-scale garden propagation — you will exhaust the jar too quickly, and the per-ounce cost is higher than the Bonide or Ferti-lome alternatives.
8. Hormex Rooting Powder #16 (1.60% IBA)
The strongest IBA powder on this list, built for hardwood cuttings that refuse to root any other way.
Hormex #16 packs 1.60% indole-3-butyric acid — sixteen times the strength of the 0.1% Bonide or Garden Safe formulas. This is not a casual houseplant powder; it is designed for “difficult hardwood plants and trees” like Japanese maple, woody ornamentals, and dormant branches. One owner used it on 20 pomegranate cuttings and reported 100% success. Another used it for air-layering a Japanese maple and says it was “super” at getting desired roots. The overall rating is 4.4 stars from 775 reviews, with effectiveness as the top-scoring aspect.
But because you need only a tiny dip per cutting, the manufacturer suggests it will last many sessions. The Hormex brand has been making rooting hormones for over 65 years, and the #16 strength is their professional-tier offering. You pair it with Hormex Rooting Cubes or a coco/soil medium for best results. You are paying for concentration, not volume.
Why the high IBA matters
- 1.60% IBA is the maximum strength available in consumer rooting powders — it overcomes woody tissue dormancy
- Works across rockwool, coco, peat moss, and soil; pairs with hydroponic setups too
- Proven on Japanese maple air-layering, pomegranate cuttings, and other hard-to-root species
The honest cost trade-off
- Very small bottle (21.27 g) relative to the Hormodin or Bonide containers — you pay for potency, not quantity
- A few owners find it too strong for softwood cuttings and accidentally damage tender stems
Your secret weapon for tough wood: If you have a mature Japanese maple or a stubborn fruit tree you want to propagate, this is the powder that can do it. The 1.60% IBA is class-leading in this lineup.
Not for: General houseplant propagation or beginners — start with a 0.1% powder to avoid overshooting the chemical signal your cuttings need.
9. Hormex Rooting Powder Combo #1, 3, 8 (0.10–0.8% IBA)
Three powders in one purchase — a dedicated strength for delicate houseplants, garden cuttings, and semi-hardwood.
This combo pack from Hormex gives you three separate containers: #1 (0.10% IBA, for delicate houseplants, garden herbs, and succulents), #3 (0.30% IBA, for common home and garden cuttings), and #8 (0.80% IBA, for semi-hardwood plants, medicinal plants, and tree cuttings). The set weighs 2.25 ounces total and is designed for the gardener who propagates a wide mix of plant types. Owners give it 4.5 stars from 577 reviews. One user says it “worked wonders” for fig cuttings, producing “full roots in 3 weeks.” Another successfully rooted a broken hibiscus clipping into a thriving plant with new leaves within two months.
The honest nuance here is that the effectiveness aspect is marked as mixed — while many report excellent results, a significant number of owners found it didn’t work well on certain species. For example, one person got only 3 out of 20 ivy cuttings to root despite trying three separate occasions. That variability is common with any rooting hormone, but it is note for this particular set. The three-strength system is a smart way to learn propagation — you can match the powder to the cutting type and see what works.
Learn as you grow: If you are building confidence and experimenting with different plant types — from succulents to woody shrubs — this combo takes the guesswork out of matching strength to cutting. It is a propagation education in a box.
Great for: Hobbyists who propagate a variety of plants and want to test which IBA strength their environment responds to best.
Skip for: Anyone who only roots one type of plant (like houseplants) — a single-strength jar from Bonide or Ferti-lome is cheaper and simpler.
Understanding the Specs
IBA Concentration
IBA stands for indole-3-butyric acid — a synthetic version of the natural auxin (plant growth hormone) that tells a cutting to produce roots. The percentage on the label tells you the strength: 0.1% is mild and safe for softwood houseplant cuttings, while 1.6% is for stubborn hardwood and dormant branches. Picking a powder that matches your cutting type is the single biggest factor in success. Too weak and a woody cutting won’t root. Too strong and a tender stem may get chemically overwhelmed.
Form and Additional Ingredients
Pure rooting powder is just IBA in an inert carrier (usually talc). Blended formulas add extras like mycorrhizae — beneficial fungi that attach to roots and help them absorb water and nutrients — or seaweed powder for potassium and trace minerals. Blends can be a good shortcut if you want an all-in-one root stimulant and soil conditioner, but they raise the price and introduce variables. For precise dialed-in propagation, stick with a pure IBA powder so you control every input.