The rooting hormones They are growth regulators designed to induce roots new and vigorous cuttings and newly transplanted plants. Its most common basis is auxins such as indolebutyric acid (IBA) or naphthaleneacetic acid (NAA), sometimes combined with adjuvants and stimulants such as humic and fulvic acids, amino acids, micronutrients or even beneficial microorganismsWhen used correctly, they improve rooting uniformity, shorten propagation times, and increase plant resistance.
In this practical guide we gather everything you need to choose and apply the rooting most suitable, from its composition and formats to doses, soaking times and precautions, also integrating useful recommendations from professional horticultural practice so that your plants develop a root system powerful and healthy.
Rooting hormones
Root stimulator for cuttings
Many growing problems are due to the cuttings used not forming enough roots and are therefore of a inferior qualityBy using a growth regulator that stimulates roots and rooting, the cuttings form better roots more quickly. fast and uniformThis allows the cuttings to better absorb water and nutrients, produce more energy and have greater disease resistanceIf you want to dig deeper into techniques and tips, you can also check out our guide on how to take a cutting.
Rooting hormones for horticulture
A rooting hormone offers the solution for rooting varieties that are difficult to root. In addition, it provides other advantages: greater uniformity, a greater number of roots, and shorter propagation cycles. When the rooting hormone is combined with optimal environmental conditions (temperature, humidity, aerated and clean substrate), the result is optimal. Application is essential in bedding plants, perennials and woody plants Rooting problems. Stimulators are available in powder, gel, or liquid form, including cutting powders like Rhizopon and professional formulations like Chryzoplus or Chryzotop. To expand your rooting knowledge, we recommend reading What is a yamadori?.
Rooting agents to stimulate roots of all types of crops
Specialized manufacturers have been producing and supplying products based on indolylbutyric acid (AIB/IBA) for rooting cuttings in the propagation of ornamental, fruit, and forest plants. The main reasons for using these powders or gels are: uniform root system around the base of the cutting which improves grip in the pot or soil and allows for balanced growth; greater predictability in nursery; and more plants healthy and vigorous thanks to more efficient nutrient absorption. Also, if you want to know how to prevent your cuttings from rotting before rooting, read our article. How to prevent your cuttings from rotting you will find useful recommendations.
Some formulations present slow release, which improves the effectiveness compared to rapid applications and facilitates the treatment of cuttings that must be transported or stored cold for a period of time. This effect is especially useful in propagation chains and nursery logistics.
Rhizopon as a root stimulator
Certain commercial products base their action on IBA (3-IBA). Their formulation controlled release It allows for a more stable result, and the powder treatment is suitable for cuttings that are transported or temporarily stored in a cold storage without losing effectiveness.
Rhizopon is used as a root stimulator for three reasons:
- Uniform root system which ensures a solid base and structure of the plant,
- Greater predictability in the propagation of cuttings,
- An optimally developed root system that improves the absorption of nutrients.
Buy rooting hormones for cuttings
Are you interested in purchasing root stimulator or rooting powderYou can find a wide range of rooting hormone products at specialized stores and reputable platforms. If you're unsure which type of hormone is right for your crop, contact a plant protection technician.
Rooting hormones
Auxins, cytokinins, and gibberellins are some of the most commonly used rooting hormones for developing root hair. These hormones act in synergy to stimulate root growth, cell division and tissue elongation.
Humic and fulvic acids
These organic acids improve the substrate structure, increasing their ability to retain water and nutrients. They also act as chelators, facilitating the micronutrient absorption by the plant.
Amino acids
Amino acids such as arginine or proline facilitate the protein synthesis and act as precursors of hormones and enzymes that benefit root development.
Micronutrients
Elements such as zinc, copper and manganese correct lacks which limit root growth and support enzymatic activity.
Microbial stimulators
Some rooting agents include beneficial microorganisms that improve the soil health and nutrient availability.
Other additives
Depending on the formulation, they may include Vitamins, plant extracts or alginates that complement the main action.
Rooting hormones They are a fundamental element in the care of our plants in the huertaThese substances stimulate strong and healthy roots, which translates into vigorous and greater growth. resilience. There are different types of rooting hormones on the market that adapt to specific needs, whether for cuttings, transplants, or root stimulation in seeds. You can also consult our guide on How to use rooting hormones to expand your knowledge.
Importance of rooting hormones in the garden
Rooting hormones are key to the root development and proper implantation after transplanting. A good root system improves the absorption of water and nutrients, accelerates rooting and reduces abiotic stress, which results in more nutritious plants uniform and productive.
Types of rooting hormones available on the market
We can find rooting agents synthetic (IBA, NAA), natural (seaweed extracts with phytohormones) and organic (mixtures with humates, amino acids, and microbes). The most common formats are: dust for direct cutting at the base of the cutting; gel which adheres better and reduces losses; and liquid For quick or extended soaking. For herbaceous plants, low concentrations are usually sufficient; for semi-woody and woody plants, high concentrations are recommended. higher doses or more persistent gels.
Considerations when choosing a rooting hormone product
Keep in mind the concentration and the type of plant (easy, medium or difficult to root), the application mode (powder, gel, soak), compatibility with the substratum and the health of the plant material. Always follow the manufacturer's instructions and combines the hormone with an optimal environment: temperate temperature, high humidity, soft light and clean, airy substrate.
Formulation, dosage and practical application
Composition:
IBA (3-indole butyric acid) and/or ANA are the most commonly used auxins. They are enhanced with adjuvants that improve adhesion and with biostimulants that promote root activity.
Application
Rooting hormones are used in the treatment of cuttings, stems and seedlings of fruit, forestry and ornamental nurseries to induce rooting. They can also be used in post-transplant of shrubs and ornamental plants to reduce planting stress. For best results, see our guide on What is an emergency transplant?.
Dosage
General instructions: keep the base (about 2 cm) of the cutting soaked.
Quick soak
Immerse the base of the cutting for 10-20 seconds directly into the product undiluted or diluted 50% (50 ml of product + 50 ml of water), depending on the ease of rooting of the species.
Prolonged soaking
Immerse the base of the cutting for 24 hours in a dilute solution. Suitable for hard materials or difficult varieties. Standard sizes: 50 ml and 100 ml.
In powders, shake off excess to avoid overdoseIn gels, evenly coat the base of the cut. Avoid wetting leaves and buds to prevent phytotoxicity.
Contraindications and safety
Toxicology: Xi – IRRITATING. Keep out of reach of children. Keep away from food, drinks, and animal feed. Avoid contact with skin and use gloves appropriate. In case of accident or discomfort, seek medical advice showing the label.
Advanced Tips for Successful Rooting
- Use healthy material, clean bevel cuts and disinfects tools.
– Use aerated substrates (perlite, coconut, peat) with sewer system and stable pH.
– Maintain high humidity with misting or domes and a temperature tempered at the base (hot beds).
– Avoid direct intense light in the first days and reduce the Breathable grips removing lower leaves.
– Classify species by difficulty and adjust concentrations and exposure times.
– In logistics, the formulations of slow release They help if there is transportation or cold storage.
More Information
What benefits do rooting hormones bring to my garden plants?
They promote the development of strong roots, improve the absorption of nutrients and water and shorten the time of rooting, achieving more vigorous plants.
How can I choose the best rooting hormone product for my crop?
Value the concentration of auxins, the ingredients additional features, reviews, and compatibility with your species. Adjust the format to the working method (powder, gel or liquid).
What is the most effective way to apply rooting hormones to my garden?
The most widespread method is immerse the base of the cutting in powder or hormone solution and plant in moist substrate, controlling technology and health.
Can they be used on seeds or transplants?
Some formulations serve in post-transplant to reduce stress and accelerate rooting. In seeds, complementary biostimulants are used and low doses where applicable.
