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Introduction to Hortus IBA Water Soluble Salts®

Hortus IBA Water Soluble Salts

Hortus IBA Water Soluble Salts make K-IBA Rooting Solutions
For Distributor referral and Distributor ordering,
contact: Phytotronics 314-770-0717,  sales@phytotronics.com

Rhizopon AA #1 #2 & #3 (dry powder rooting hormones)
Hortus IBA Water Soluble Salts (for rooting solutions)


Hortus IBA

(download Fact Sheet)

Hortus IBA Water Soluble Salts make fresh IBA, K-IBA rooting solutions for plant propagation from cuttings.This unique product is US EPA registered for use in greenhouses, nurseries, and technical programs.
• MAKING ROOTING SOLUTIONS: Hortus IBA Water Soluble Salts instantly mix and make rooting solutions using only WATER to dissolve; the solutions are free of alcohol and active solvents. No mix agitation is done. The powders stay in solution to over 100,000 ppm K-IBA (IBA), and powders NEVER drop out! High rates can be used to make stock solutions for decanting into production tanks. Solutions are close to pH neutral.No other products and tech. IBA and K-IBA can be made into such stable solutions.
• STORAGE: Dry Hortus IBA Water Soluble Salts in the original package have un-limited life. There is useful keeping life of solutions.
• SOLUTION METHODS: Use Hortus IBA Water Soluble Salts rooting solutions by all Basal & Foliar Solution Methods with ZERO HOUR REI and no required re-entry PPE. Hortus IBA Water Soluble Salts are used by any IBA or K-IBA solution method specified in technical literature or books and others. Ask your URC supplier, what Hortus IBA Water Soluble Salt rate they use in their own rooting stations. Methods: Total Immerse, Spray Drip Down®, Quick Dip, Basal Long Soak.
• DRY DIP METHOD: For rooting plant cuttings that effectively use dry dip rooting hormones, Rhizopon AA products are best.

Propagate Plants from Cuttings Using Solutions.

  • Take plant cuttings, usually stem, root or leaf cuttings.
  • Woody cuttings are usually wounded by making a 3/4" notch at the basal end. Herbaceous cuttings are not wounded.
  • Make up a fresh Hortus IBA Water Soluble Salts solution using the appropriate concentration.
  • Using Spray Drip Down first plant then treat.
  • Using the Immersion, Quick Dip, or the Total Immerse, first treat then plant.
  • Take care of the cuttings.

Herbaceous plants, such as chrysanthemum, are easy to treat using low concentrations by the Spray Drip Down® or Total Immerse.
Total Immerse and Spray Drip Down® can be used interchangeably. The active ingredients are absorbed into the leaves and stems the transported to the basal end where it induces root formation.
The active ingredients are transported through the phloem to the basal end. It induces cell diffusion and root induction in the presence of oxygen and water.
These methods retard bud formation; the cuttings to put their energy into root formation.

Why is Hortus IBA Water Soluble Salts at 20% IBA?
The US EPA approved ingredients panel reads
Indole Butyric Acid (IBA) 20%
Other ingredients 80%
Under normal conditions, IBA is insoluble in water. The composition of the Salts allows them to be fully soluble in water to over 100,000 ppm IBA, and remain in solution indefinitely at that rate; IBA will lose potency over time.
At 20% IBA, the measuring scale used does not need to be as accurate (lower resolution) as if the composition were 100%.


  • Weigh the required amount of Hortus IBA Water Soluble Salts.
  • Measure by weight not volume: do not scoop.
  • Use tap water from 60F to about ~110F (water temperature used for hand washing). At higher temperature Salts dissolve fastest.
  • Do not dissolve Hortus IBA Water Soluble Salts in liquids other than water.
  • Mix: dissolve Hortus IBA Water Soluble Salts in water.
  • Add water to the mixing container to bring the Rooting Solution to the final volume.
  • Apply the solution by the selected method.
  • After use, dispose of the solution as described in the ‘Storage and Disposal’ statements on the product label.


  • For the Total Immerse, Basal Quick Dip and Basal Long Soak dispose of Rooting Solutions between plant lots to avoid cross contamination.
  • Using Spray Drip Down® the Rooting Solution is used one time and there is no cross-contamination. Solutions can be used completely.

Hortus IBA Water Soluble Salts are provided dry. Store dry products at room temperature. They do not require refrigeration. The dry products will be fully active for many years. The dry product is sensitive to humidity. Store them dry to avoid caking and difficulty to dissolve. Store the dry products in their original sealable labeled containers.

Ordinary tap water is usually used to make Rooting Solutions. If the Rooting Solution is clear, having a small amount of particles, then the active ingredient is in solution and ready to use. Hard, well or pond water may reduce solubility; in those cases use another source such as filtered or demineralized water.

Stock and production Solutions made with Hortus IBA Water Soluble Salts maintain full potency for several days when kept in a closed container, at room temperature and normal light.

To batch measure DRY Hortus IBA Water Soluble Salts and save for later, save empty Hortus IBA Water Soluble Salts containers with original covers and labels. If a particular powder weight is used for production tank loads, measure that amount. Put the weighed powder into the re-used empty containers. Cover securely. Mark the containers with the weight and save to make solutions later.




The Spray Drip Down Method


  • First plant the cuttings.
  • Spray the solution evenly over the cuttings until drops go down to the media.

Spray Drip Down® is specifically intended to be used by the products Hortus IBA Water Soluble Salts


Herbaceous Cuttings, Chrysanthemum, Begonia, Dieffenbachia, Heath, Hibiscus, etc.:

  • Hortus IBA Water Soluble Salts @50-250 ppm IBA

For cuttings which take a long time to root, or when roots of cuttings are killed by root fungus periodically spray solution on leaves and stems until drip down into media:

  • Hortus IBA Water Soluble Salts @50-250 ppm IBA
(Hortus IBA Water Soluble Salts® are used to make IBA rooting solutions by trademarked Spray Drip Down®, all rights are reserved.)
Total Immerse


  • First totally immerse the cuttings in the solution for a few seconds.
  • Plant the cuttings.
  • You can use a basket to dip the cuttings in a tub, not placing too many cuttings in the solution at once.
  • Allow time for the solution to dry on the cuttings before watering, misting or covering.
  • Broad leaf cuttings are especially suited for this method.
  • The temperature of the solution should be at least equal to the cutting temperature.
  • A cold solution temperature causes the stomata of the cuttings close; the amount of active ingredients absorbed is reduced.

Total Immerse is specifically intended to be used by the products Hortus IBA Water Soluble Salts


Herbaceous Cuttings, Chrysanthemum, Plumbago, Ivy, Clematis, Delphinium, Lavender, Ficus, Potted Rose Bushes, etc.:

  • Hortus IBA Water Soluble salts @50-250 ppm IBA, Softwood Cuttings, Buddleia (Butterfly Bush), Hydrangea, Pieris, Hedera (Ivy), etc.:

Hardwood Cuttings, Conifers, etc.:
Hortus IBA Water Soluble Salts @200-500 ppm IBA


The Basal Immerse Method


  • Use the Basal Long Soak Method on cuttings which are more difficult to root or are more woody.
  • A long soak of the cuttings in a low concentration solution causes the plant tissues to absorb the active ingredients.
  • Use this method on plants which may be sensitive to high concentration used in the Quick Dip Method.
  • Immerse the basal end of cuttings approximately one inch in the solution for 12-25 hours nominal.
  • Plant the cuttings immediately or cuttings can be stored in cold storage.

Hortus IBA Water Soluble Salts:

  • Herbaceous cuttings: 50-150 ppm IBA
  • Herbaceous and Woody Cuttings, including hard to root cuttings and rootstocks: 150-250 ppm IBA
Basal Quick Dip Method


  • First treat the cuttings then plant them.
  • Immerse the basal end of cuttings approximately one inch in the solution for a few seconds.
  • Plant the cuttings immediately.
    Use the lowest possible concentration to achieve the desired results.
  • Excess concentration may result in reduced numbers of roots formed, phyto toxicity, shock, excessive callus, and rooting inequality.


Herbaceous Cuttings, Tropical Plants, House Plants, Roses, etc.:
Hortus IBA Water Soluble Salts @150-500 ppm IBA

Chrysanthemum: Hortus IBA Water Soluble Salts @200-500 ppm IBA.

Softwood Cuttings:
Hortus IBA Water Soluble Salts @500-1000 ppm IBA.

Hardwood Cuttings:
ortus IBA Water Soluble Salts @500-2000 ppm IBA.

Difficult to Root Cuttings:
Hortus IBA Water Soluble Salts @5000-20000 ppm IBA.



Use Rooting HormonesPropation Book Use Rooting Hormones

HORTUS IBA WATER SOLUBLE SALTS make KIBA rooting solutions (alcohol free)
Comparison of Two Water-soluble Forms of IBA for Rooting Cuttings
Eugene Blythe, SNA Research Conference 2013

To unrooted Chrysanthemum cuttings (such as provided by Yoder Brothers & Aris Horticulture): Use the Spray Drip Down® with the following products and rates:
Hortus IBA Water Soluble Salts @200 ppm IBA

Download Two Books (free):

Hortus Plant Propagation from Cuttings
A guide to using plant rooting hormones by foliar and basal methods

Use Rooting Solutions, or Not?
Multiple applications may be best

Make a 'cloning' ROOTING GEL (easy and inexpensive)

When making a gel based solution, use one of many standard gel products from your horticultural supply. You can also use corn starch from the food market.
Using Hortus IBA Water Soluble Salts mix in water to make a rooting solution at any concentration. Then, add the gel powder or corn starch powder to the rooting solution (warm solution is easier to mix) until you get needed ‘gel peaks' or somewhat watery solution as needed.

The resultant 'concentration' is defined as ‘parts per volume’. The rooting 'gel' will be higher volume than the original water based rooting solution.



For Distributor ordering or referral contact Master Distributor: Phytotronics, 314-770-0717, phytotronics.com   sales@phytotronics.com

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