U.S. Patent No. 11,871,709

Block the meristems.
Grow colas, not larf.

The Cola Cultivator by Auxer is a patented plant-blocking device. It temporarily stops the upward growth of a cannabis plant’s meristems — the cells that build every part of the plant. The plant answers with a surge of its own growth hormones and builds a wide, flat canopy of colas in great light.

30–80%
more yield in testing
12+
cultivars tested
0w
power required
2024
U.S. patent issued
Untrained cannabis plant grown tall and bushy with a deep canopy Without
Plant trained into a wide flat canopy with the Cola Cultivator With Cola Cultivator

A plant-blocking device.
Not a net. Not a tie-down. Not a cut.

The Cola Cultivator is a mast, an adjustable circular frame, a brace and a netting that sit over the top of a young plant and temporarily limit its vertical growth. That physical barrier is the whole invention — and the plant does the rest.

It blocks

The device creates a barrier above the growing tips. The meristems cannot push upward toward the light the way they are hard-wired to do.

The plant responds

Blocked growth triggers a survival mechanism. Powerful growth hormones are produced and moved to the top of the plant, where new lateral growth breaks out.

The canopy flattens

After about four days the device comes off. What grows back is a lower, wider, flatter plant with far more bud sites — all of them in great light.

From the patent, claim 1: “A plant blocking device for limiting vertical growth of a plant consisting of: a mast; a circular frame… a netting; a unitary brace…” U.S. Patent No. 11,871,709 B2 · Plant growth stimulation device and method · Patent details

Simple hardware. One moving part.

A circular frame, a hexagonal netting and a three-spoke brace, joined at a central hub that rides down a plant stake. No electronics, no batteries, nothing to plug in.

Shown: hand-built working prototypes. Production units are planned in injection-molded plastic.

  1. 1

    Circular frame

    A rigid round hoop that sets the size of the blocking area and holds its shape over the plant.

  2. 2

    Netting

    Hexagonal mesh across the frame. The growing tips press up against it and cannot pass through.

  3. 3

    Brace

    Three flat spokes run from the frame to the center, keeping the netting flat and the whole device stiff.

  4. 4

    Hub & lockdown

    A collar at the center slides over a plant stake. An oversized hand screw locks it at any height.

  5. 5

    Mast

    A standard plant stake set in the pot, sold separately. It guides the device straight down over the plant and holds it there.

Prototype sizes

Diameter is measured across the frame. Launch sizes are being finalized.

The only moving part.

The device is placed over the plant stake, moved down over the plant, and locked in place by tightening the oversized hand screw. The netting rests on the top of the plant with slight downward pressure. Loosen the screw and it lifts straight off.

  1. Place the hub over the plant stake.
  2. Lower it until the netting rests on the top of the plant.
  3. Lock it by tightening the hand screw.

The most powerful part of the plant isn’t the flower.

Meristems are special zones of actively dividing cells. The apical meristem sits at the very top of the stem, just below the leaves. From a single meristem in a seedling, the plant grows more than a hundred — and they produce every cell of every part of the plant.

Meristem locations circled in red on a cannabis plant
Diagram of the types of plant cells, all produced by meristems

100% of the plant comes from meristems

Roots, stems, branches, nodes, leaves and flowers are all made of cells, and every one of those cells was made by a meristem. Flowers grow directly from meristems.

They divide 24 hours a day, 7 days a week

Meristems are capable of cellular division around the clock for an indeterminate period of time. Nothing else in the plant works this hard.

In nature they refuse to be stopped

If a deer eats the top off a plant, the meristems replace the branches and leaves. If a fallen tree blocks the way up, the meristems grow over, under, around and through it toward the light. Over time, root meristems can lift a 500-pound slab of sidewalk.

Light decides what they build

When a meristem gets great light, it grows more meristems. When it doesn’t get enough, it grows branches and leaves to go looking for light. That single rule is what the Cola Cultivator exploits.

So what happens if you temporarily block the upward growth of these powerful meristems?

A barrier on top. A hormone surge from the roots.

The Cola Cultivator was designed to do one thing: temporarily block the upward growth of the meristems. That barrier sets off a chain reaction inside the plant.

1

Barrier

The device is placed over the top of the plant. The meristems push up and meet a physical block they cannot grow through.

2

Survival signal

Blocked growth triggers the same survival mechanism the plant uses when a tree falls on it or a deer eats its top.

3

Cytokinin moves up

Cytokinin, a growth hormone made in the roots, is produced and quickly transported to the top of the plant, right where the device is holding the meristems back.

4

Lateral growth

When cytokinin reaches the top, it drives cell division sideways instead of upward. More bud locations break out across the top of the plant, all in great light.

5

Flat canopy

The device comes off after about four days. The plant grows on as a lower, wider, flatter plant with its flowers concentrated in the top twelve inches of the canopy.

Auxin

A group of vital plant hormones made mostly in the growing tips of shoots and roots. Auxins control stretching, shaping and how a plant bends toward the light.

Cytokinin

A class of plant hormones that cause cell division and drive growth and bud development. Cytokinins keep leaves green and photosynthetically active longer by directing nutrients to the areas where cytokinin levels are high. The device stimulates the movement of cytokinin from the roots to the top of the canopy.

Phototropism

The plant’s stems growing toward the light to maximize the energy it can absorb for photosynthesis. It is the drive the Cola Cultivator temporarily blocks — and then puts to work.

To summarize: the Cola Cultivator is the mechanical device Auxer developed to stimulate and move the cannabis plant’s natural growth hormones. In Auxer’s testing it caused a large increase in flower production by producing a lower-growing plant with a wide, flat canopy and all of the flowers on top, where great lighting is achieved.

When cultivating cannabis, light is the key.

Most commercial and home growers produce plants with four- and five-foot-thick canopies. Grow lights cannot burn through four feet of vegetation. The nodes and meristems in the lower center never see enough light, so they stretch, grow branches and leaves, and produce ounces of fluffy, low-THC larf on every plant.

Tall plant with a canopy several feet thick
4–5 ft canopy

Natural growth

Canopy measured from the highest green leaf to the lowest. Light energy fights through feet of leaves and branches. Meristems starved of light make more branches and leaves. The shaded interior is where larf grows.

Flat, wide canopy grown with the Cola Cultivator
< 18″ canopy

With the Cola Cultivator

A wide, flat canopy with the flowers in the top twelve inches. Every meristem in great light grows more meristems, and more meristems in great light means more colas. Far less energy is spent lighting vegetation that will never flower well.

Same cultivar. Same age.
One was blocked for four days.

Top-down views of two identical plants. The only difference: one was trained with the Cola Cultivator. Look at the center.

With Device
Top-down view of a plant trained with the Cola Cultivator, showing an open center full of new growth
Wide, open center. Light pours onto every meristem. Growth hormones stimulated by the device have pushed new growth outward instead of stacking it up.
Without Device
Top-down view of an untrained control plant with a crowded, shaded center
Crowded center. The canopy shades itself. The meristems in the middle are starved of light, so they build branches and leaves instead of colas.

Thirty to eighty percent more yield.

During the discovery, testing and product development phases, Auxer grew more than a dozen cultivars with the Cola Cultivator. Using the device produced an increase in yield with every cultivar tested.

  • 30–80% yield increase across all cultivars tested
  • About 90% of test plants grown from clones, 10% from seed
  • Flowers concentrated in the top 12 inches of the canopy
  • Less branching, less leaf, little to no larf
  • Lower lighting energy per gram of flower
Cultivars tested12+
Clones / seeds~90% / ~10%
Yield increase30–80%
Time on plant~4 days
Power, batteries, consumablesNone
Mature wide flat canopy of colas produced with the Cola Cultivator
Real result — Auxer test grow

Protected in the United States.
Filed internationally.

The Cola Cultivator is not a technique anyone can copy. The device and the method of using it are claimed in an issued U.S. patent.

U.S. Patent No. 11,871,709
Plant growth stimulation device and method
Inventor
Terry Dickinson
Granted
January 16, 2024
Filed
July 12, 2022
Priority
U.S. Provisional No. 63/220,664 · July 12, 2021
International
PCT/US2022/073621
Kind
Utility patent, B2 · device and method claims
View on Google Patents

What the patent protects

  • The device. A plant-blocking device for limiting vertical growth: mast, adjustable circular frame with lip, netting, and unitary brace.
  • The method. Using the device to stimulate cytokinin and auxin development and increase the size, quality and quantity of colas on plants of the Cannabaceae family.
  • The runway. A utility patent filed in 2022 gives Auxer protection into the late 2030s, with an international application on file.

Auxer continues to invest in protecting the invention. Investors can request the full patent file and prosecution history.

Four simple steps. Four days on the plant.

No batteries. No app. No string. Grow, top, wait, block — that’s it.

1

Grow

Grow your plant to about 24 inches. Smaller or larger plants work too — this is just the sweet spot.

2

Top

Remove the top three nodes with an angled cut at the lowest point. That’s all the cutting you’ll do.

3

Wait

Let it grow a few weeks to develop new meristems — the future colas.

4

Block

Gently spread the branches outward, slide the device down the plant stake and tighten the hand screw. Leave it for four days. Remove.

For Investors & Partners

A patented device, a tested result, and a market that wants both.

Auxer is bringing the Cola Cultivator to home growers and licensed commercial cultivators. We are speaking with investors and partners who want to be part of it.

Issued U.S. patent

Device and method claims granted in 2024, with an international application on file. A real barrier to copycats.

Tested result

30–80% more yield across every one of the 12+ cultivars grown during discovery and development.

Simple hardware

No electronics, no batteries, no consumables, no app. Reusable across grow cycles. The plant supplies the power.

Two markets

Home growers who want colas instead of larf, and commercial cultivators paying the electric bill on four-foot canopies.

U.S. Patented
PCT International Filing
Tested on 12+ Cultivars
Made by Auxer

The words behind the invention.

Key terms commonly used in the cannabis grow community, and what they mean for the Cola Cultivator.

Cola
The topmost part of the plant, where the buds come together to form a mass.
Larf
The small, airy, underdeveloped buds that grow on the lower branches or shaded parts of the plant. Usually much lower in potency.
Meristem
A special zone of actively dividing cells. Meristems produce all cells and all growth of the cannabis plant.
Apical meristem
The meristem at the topmost point of the plant, just below the leaves. In a seedling it is the single meristem that will become more than a hundred.
Auxin
A group of vital plant hormones made mostly in growing tips. Controls stretching, shaping and bending toward light.
Cytokinin
A class of plant hormones made in the roots that cause cell division and drive growth and bud development.
Phototropism
Plant stems growing toward the light to maximize energy absorption for photosynthesis.
Canopy
The upper, above-ground layer of a plant and its primary interface for capturing light. Its thickness is measured from the lowest green leaf to the highest.
Cultivar
A specific plant — a cultivated variety.

Common questions.

What growers and investors ask us first.

A patented plant-blocking device. It is a mast, an adjustable circular frame, a brace and a netting that sit over the top of a young cannabis plant and temporarily limit its vertical growth. It uses no power, no batteries and no consumables.

Auxer has built working prototypes at 16, 20 and 24 inches in diameter. Launch sizes are being finalized and will be announced with the Kickstarter campaign. See the device.

No. It mounts on a standard plant stake, which is sold separately. The hub at the center slides down the stake until the netting rests on the top of the plant with slight downward pressure, and the oversized hand screw locks it in place. The lockdown is the only moving part.

Meristems are the zones of dividing cells that build every part of the plant. When their upward growth is physically blocked, the plant responds with a survival mechanism: growth hormones, especially cytokinin made in the roots, are directed to the top of the plant, where they trigger lateral growth and more bud sites. The result is a lower, wider, flatter canopy with the flowers concentrated in the top twelve inches, where the light is strongest.

Yes. U.S. Patent No. 11,871,709 B2, “Plant growth stimulation device and method,” was granted January 16, 2024 to inventor Terry Dickinson. It claims both the plant-blocking device and the method of using it. An international (PCT) application was also filed. See the patent details.

During discovery, testing and product development, Auxer grew more than a dozen cultivars, roughly ninety percent from clones and ten percent from seed. Using the Cola Cultivator produced a yield increase with every cultivar tested, ranging from thirty to eighty percent.

About four days. Once the plant has redirected its growth outward, the device is removed and the new flat canopy fills in. Most growers train once per plant.

Those techniques tie stems down, weave them through a net, or cut the plant. The Cola Cultivator is a temporary barrier. It blocks upward growth for a few days and lets the plant’s own hormones reshape the canopy. No string, no net left on the plant, no repeated cutting.

The campaign is in preparation. Join the mailing list below and we’ll email you the moment it goes live.

The Cola Cultivator is a plant-training device with no controlled substance involved. Cannabis cultivation laws vary by jurisdiction. Please follow your local laws.
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Investors, press, retailers, licensed cultivators and curious growers all welcome. We’ll reply within a few business days.

Or email us directly: info@colacultivator.com