Zome Greenhouse
Brighton, Colorado · 720-318-6337

A 16-foot spiralthat grows foodall winter.

A hand-built zome greenhouse growing year-round on Colorado's Front Range: eight vertical aeroponic towers, a ring of LED light bars and a twin-wall polycarbonate shell on a 3-foot insulated pony wall.

The zome greenhouse from outside: frosted polycarbonate panels in black frames forming a spiral of diamonds above a gray shingled pony wall.
Looking straight up inside the zome: black struts radiate from the apex in a ten-point star, with a ceiling fan below.
Look up.Ten panels meet at the apex, and every strut in the frame is the same length. Only the angles change.

What grows in here

An insulated nutrient barrel of RO-filtered water sits in the center and tops up every tower automatically. Each tower keeps its own reservoir, so the towers never share water: if one plant gets sick, it stays in that tower.

Three white vertical aeroponic towers standing on round reservoirs inside the zome.
Vertical aeroponic towers. Eight towers, each with its own reservoir and pump.
Blue-framed vertical LED grow light bars glowing red and white beside a tower.
Vertical LED light bars. 610-watt bars that extend the day and add heat on winter nights.
A galvanized strut-channel frame in the center of the zome holding light drivers and LED bars.
Central light frame. Galvanized strut channel holds the bars and drivers at the heart of the ring.

The real one, in Brighton

Photos of the zome we built, from framing to first light.

The zome at night glowing deep blue from LED strips along its struts.
At night. Lit up blue after dark.
The zome glowing warm amber at dusk beside a metal sculpture and a tree.
At dusk. The grow lights warm the whole shell.
The zome in a Brighton backyard behind a white rail fence, with houses and evergreens around it.
In the yard. About 16 feet across and 15 feet tall.
Front of the zome with the sage door set into the pony wall under its overhang.
The door. Set into the pony wall, with an overhang that works like a small porch.
Inside the zome: a foil-wrapped nutrient barrel in the center of a galvanized light rack, with towers and LED bars around it.
The center barrel. Insulated, RO-filtered, and it keeps every tower topped up.
Looking up at the apex from inside: a ceiling fan under the ten-point star of struts, with LED drivers on the light rack below.
Air on the move. A fan at the apex keeps the air mixing year-round.
The door being framed into the zome during the build, with polycarbonate panels going on around it.
Framing the door. Our own door design, built into the shell.
Looking up from inside during the build: a person on a ladder working at the apex as the panels close in.
Closing the top. Fitting the last panels at the apex.

The build

Diameter
16 ft 9⅞ in at the widest point
Height
About 15 ft 3 in, including the 3 ft pony wall
Floor
About 166 sq ft on an insulated slab
Shell
66 framed panels, 8 mm UV-coated twin-wall polycarbonate
Growing
8 vertical aeroponic towers, 352 plant sites
Light
8 × 610 W vertical LED bars, dimmable
Water
Sediment filter, RO system, central nutrient barrel
Air
Apex ceiling fan, circulation fans, exhaust and intake
The zome's sage-green entry door framed into the pony wall, with polycarbonate panels above.

Make it match your place

Frame, siding and door colors are your choice. Here are a few combinations, plus what it looks like inside once the towers fill in.

Renderings are concept images of the 16-foot design. Photos above are the real Brighton build.

Fresh food for your family, every week of the year

352 plant sites on 8 towers grow the greens, herbs and vegetables a family eats, year-round, steps from your kitchen. You know exactly where your food comes from, because you grew it.

Grown without soil or pesticides. Harvest amounts depend on what you plant.

Printable seam trim, in development

Instead of tape over the panel seams, these 3D-printed caps bed into sealant and screw down over each joint. There's one profile for each seam angle in the frame.

  • 1½ in flange on each side of the ridge
  • Undercut grooves on the back lock the sealant in
  • Slotted screw holes let the caps expand in summer heat
  • Printed in UV-stable ASA, each piece under 10 in
Rendering of two black seam caps running along the ridge where two frosted panels meet.
Seam caps over a panel joint
Rendering of a seam cap flipped over to show its grooved underside and screw slots.
The underside: sealant grooves, edge lips and screw slots
Rendering of two seam caps slid apart: the end of one has a thin tongue that slides under the socket in the next.
Self-lapping ends: each cap slides over the tongue of the one below, no splice pieces
Rendering of a large conical apex cap and two smaller round node caps, one flipped to show its hollow underside.
Apex cap and node caps for the points where seams meet

A complete greenhouse, built for you

One build, start to finish: the foundation, the zome, the growing system and the climate control to keep it producing through a Colorado winter.

Ways to buy

Get the whole thing built and growing, or take on as much of it yourself as you like.

Complete

Everything above, built, planted and handed over growing.

Shell

Slab, pony wall, zome, double-layer glazing, door, power and drain. You add the growing system.

Grow

Towers, LED light bars, RO water and the nutrient system, for an existing structure.

Climate

Hyper-heat mini split, backup heat, fans and controls, sized for the zome.

DIY kit

Pre-built frame panels, cut glazing, printed seam trim and a full parts list, with build support by the hour.

Questions people ask

Can it really grow through a Colorado winter?

Yes. The Brighton zome runs year-round. A 3-foot insulated pony wall, double-layer polycarbonate and a hyper-heat mini split rated to −14°F keep nights around 60°F, and a freeze alarm texts you if anything goes wrong.

What does it cost to run?

Roughly $225 a month on average for lights, pumps, fans, heat, nutrients and water, at Denver electricity rates. Most of that is the grow lights in the short days of winter.

Why grow your own?

You know where your food comes from and what went on it. Greens picked minutes before dinner taste better and last longer than anything shipped across the country, and you have them in January.

If one plant gets sick, does it spread to the rest?

Not through the water. The center barrel tops up each tower, but each tower circulates its own reservoir, so nothing passes from one tower to the next. You can clean or replant one tower while the rest keep growing.

How much time does it take?

About 2–3 hours a week to plant, harvest and check the water. The towers water and feed themselves on a timer, and a monitor shows pH and nutrient levels on your phone.

I've never grown hydroponically. Is that a problem?

No. Leafy greens are the easiest place to start, and we help you get the first crop going and set up the nutrient schedule.

What about hail, snow and wind?

Twin-wall polycarbonate is much tougher than glass or film, and each panel can be replaced on its own. The steep upper panels shed snow, and the curved shape handles wind better than flat walls. The frame is anchored to a concrete slab.

Do I need a permit, and will my HOA allow it?

It's a detached accessory structure, about 188 sq ft on the ground and about 15 feet tall, so most places need a building permit. We check setbacks, height limits and HOA rules before you commit, and handle the permits.

How long does a build take?

About 8–10 weeks from signing to handover, with 4–6 weeks of work on site. The frame panels are built in the shop while the permit is in review.

Can I grow tomatoes and strawberries?

Yes. Cherry tomatoes, strawberries and peppers all grow on the towers. Greens and herbs give the most food per plant site, so most growers keep a mix.

What if something breaks?

You call one company: the same licensed HVAC contractor that built it. The lights, mini split and towers also carry their manufacturers' warranties.

Come see it, or ask a question

Call or text Jason to set up a tour of the Brighton zome or to talk about building one for your family.