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Growing inputs
All Containers›Shop by use case›Growing inputs›The products›Rooting hormoneShop all growing inputs →
The products

Rooting hormone

By Dwight Davis, Founder

On this page10
10 to 250 mL, sold next to the seed trays, and regulated like a herbicide.

Why it is a pesticide

A plant growth regulator falls inside the statutory definition of a pesticide. It does not kill anything, and that is not the test.

Which surprises people

It sits on a shelf between compost and seed trays, it is bought by hobbyists, and it carries the same registration and labeling apparatus as a product that controls weeds.

The archetype

Small craft liquid, 10 to 250 mL, narrow neck, dispensed a drop or a dip at a time. The smallest container in this whole use case.

Which makes the label the hard part

Nine mandatory elements at 6-point minimum on a contrasting background, with the ingredient statement on the front panel, on a bottle that may be under 60 mL.

A booklet label is often the answer

Directions for use are the longest element and they will not fit. A fold-out or booklet label needs a panel that can carry it and a bottle that will not shed it, which is a container decision.

Powder and gel forms exist too

A rooting powder is a dipped dry product and a gel is a dipped thick one. Both are the same regulatory animal in a different physical form, and both need a wide enough mouth to dip a cutting into.

Light sensitive

The archetype flags it, and for a hormone preparation that is right. Amber glass or opaque HDPE rather than clear PET, which the shelf supports with 67 glass Boston rounds and 203 HDPE containers.

Decanting is part of how it is used

Nobody dips a cutting into the stock bottle, because contaminating it ruins the rest. The directions usually tell the user to pour a little into a separate dish, which means the pour at very small volumes is the moment the package is judged on.

A small bottle with a long shelf life

A hobbyist uses a few millilitres a season, so the same bottle is opened and closed over years. The closure has to still seal on the fiftieth opening, which is a different test from a product consumed in a month.

References

The Davis Pack Supply catalog, measured 18 October 2026. The growing inputs shelf is 1,075 rows: 579 containers and 496 closures, derived from three packaging archetypes across nine leaves. 276 PET, 203 HDPE, 85 glass, 14 PP and 1 LDPE, from 10 to 9,464 mL with a median of 125 and 42 containers at 1 litre or more. The closures include 30 child resistant, 19 trigger sprayers and 18 spouted.
40 CFR 156.10, general labeling requirements for pesticides. The label carries the name, brand or trademark; the name and address of the producer or registrant; the net contents; the EPA registration number; the EPA establishment number; the ingredient statement; hazard and precautionary statements; directions for use; and the use classification. Required text must be "clearly legible to a person with normal vision", set in 6-point or larger type, on a clear contrasting background, not obscured or crowded, and placed so as "to render it likely to be read and understood by the ordinary individual under customary conditions of purchase and use". The ingredient statement is normally required on the front panel. law.cornell.edu
40 CFR 157.22, child-resistant packaging for pesticides: "Unless exempted under 157.24, a pesticide product must be distributed and sold in child-resistant packaging" where it meets a toxicity criterion and "the product's labeling either directly recommends residential use or reasonably can be interpreted to permit residential use". The toxicity criteria include an acute oral LD50 of 1.5 g/kg or less, an acute dermal LD50 of 2000 mg/kg or less, an acute inhalation LC50 of 2 mg/litre or less, irreversible eye damage or corneal involvement persisting 21 days or more, and tissue destruction or severe skin irritation at 72 hours. law.cornell.edu
Written from 40 CFR 156.10, 165.25 and 157.22, and from the catalog as it stood on 18 October 2026. A pesticide may not be distributed or sold in the United States unless it is registered, and the label is approved as part of that registration; nothing here is a substitute for EPA guidance on a specific product, and whether a given product is a pesticide at all is a determination with consequences.