Quick Answer: There is no single “best” greenhouse brand — the right one depends entirely on budget and climate. Outsunny and Quictent ($110-350) are the entry point for a first greenhouse. Canopia by Palram and ShelterLogic ($500-1,000) are the mid-tier standard most buyers land on, with real twin-wall polycarbonate and multi-year warranties. ClimaPod and cedar-frame kits (BlueWish, Veikous) sit in the same mid-tier price band with a different look or material. Riga and Exaco ($6,000-17,000) are the premium European-engineered end, built for real snow load and decades of use, not a single season.
Last updated: September 13, 2026.
Ten brands now have a dedicated guide on this site, and it’s easy to lose track of which one solves which problem. This page is the map: a quick comparison table, then a one-paragraph capsule on each brand with a link to the full breakdown. If you already know your budget and rough size, skip straight to the matching row.
Greenhouse brand landscape, by the numbers:
- ~$110 to ~$17,000 — the real price spread across the ten brands covered here, driven almost entirely by glazing material (PE film → single-wall polycarbonate → twin-wall polycarbonate → tempered glass) rather than brand markup alone.
- 3 frame materials — aluminum (most brands), steel tube (Outsunny, Quictent budget tiers), and cedar wood (BlueWish, Veikous) are the only structural options across the whole lineup; there is no plastic-frame walk-in worth buying at any price tested on this site.
- 1988 — the year Exaco began importing the Belgian-built Janssens Victorian glasshouse line, the oldest continuously-imported brand relationship in this comparison.
Brand comparison at a glance
| Brand | Tier | Typical price | Frame | Glazing |
|---|---|---|---|---|
| Outsunny | Budget | $110-320 | Steel/aluminum tube | PE film or polycarbonate |
| Quictent | Budget | $200-340 | Steel tube | PE film or polycarbonate |
| Geodesic dome kits | Budget-mid | $300-450 | Aluminum or PVC | Marine-grade poly or polycarbonate |
| ShelterLogic GrowIT | Mid | $598-708 | Aluminum | Twin-wall polycarbonate |
| Canopia by Palram | Mid | $744-829 | Aluminum, galvanized base | Single/twin-wall polycarbonate |
| Cedar-frame (BlueWish/Veikous) | Mid | $999-1,099 | Cedar wood | Polycarbonate or solid cedar |
| ClimaPod | Mid-upper | ~$1,500-3,000 (est. by size) | Aluminum | 4-6mm twin-wall polycarbonate |
| Gothic Arch Greenhouses | Upper | $1,500-2,000+ | Cypress wood | Polycarbonate |
| Riga (Hoklartherm) | Premium | $5,999-7,399+ | Structural steel | Thick twin-wall polycarbonate |
| Exaco | Premium | $7,449-16,999 | Tubular aluminum | Tempered glass |
The brands, one at a time
Outsunny — the lowest entry price on this list, spanning a $110 aluminum cold-frame mini up to a $320 6x8x7 polycarbonate walk-in. Built for a first greenhouse or a mild climate rather than heavy wind or snow. Full picks in our Outsunny greenhouse guide.
Quictent — sits right beside Outsunny on price ($200-340) with a wider size range, from a 4-tier mini up to a 20x10x6.6 walk-in, plus a raised-bed combo unit no other budget brand offers. See the Quictent greenhouse guide.
Geodesic dome kits — a different shape at a similar budget-to-mid price ($300-450), from PVC pop-up garden domes to semi-permanent marine-poly geo-domes. The dome shape sheds wind more evenly than a flat-sided walk-in, which is the main reason to pick this over a rectangular budget kit. Full breakdown in our geodesic dome greenhouse guide.
ShelterLogic GrowIT — the mid-tier’s other major aluminum-and-polycarbonate line, priced $598-708 for its 6x8 kits and scaling up to a 12x20x8 heavy-duty walk-thru. Also sells replacement covers separately, useful for a kit nearing the end of its film’s UV life. Details in our ShelterLogic greenhouse guide.
Canopia by Palram — the brand most buyers land on by default, and the one referenced as a price benchmark across Costco, Home Depot, and Lowe’s listings for its Harmony 6x8 model ($744-829). The lineup runs from the budget Hybrid up through the hail-resistant, winter-rated Glory. Full comparison in our Palram greenhouse guide.
Canopia by Palram Harmony 6x8
- Clear polycarbonate for near-100% light transmission, aluminum frame on a galvanized steel base.
- 6'10" ridge height and a lockable magnetized door — the same model priced across Costco, Home Depot, and Lowe's listings.
- Full pick-by-pick breakdown of the whole Palram lineup (Hybrid, Harmony, Mythos, Bella, Glory) in our Palram greenhouse guide.
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Cedar-frame kits (BlueWish, Veikous) — the wood-frame alternative to aluminum or steel, priced close to Palram/ShelterLogic ($999-1,099). Cedar resists rot and insects without chemical treatment and holds warmth better overnight than bare metal, at the cost of more upkeep than an aluminum frame. See our cedar greenhouse kit guide.
ClimaPod — genuine twin-wall polycarbonate (4-6mm, thicker than most mid-tier competitors) across four series (Spirit, Virtue, Hobby, Passion) that split mainly on footprint width and panel thickness. One honesty-hook worth knowing before buying: original manufacturer Modular Organics LLC no longer runs the brand directly, so warranty and support now route through independent distributors. Full detail in our ClimaPod greenhouse guide.
Gothic Arch Greenhouses — steep-sided, Cypress-and-polycarbonate kits ($1,500-2,000+ starting at an 8x8) built specifically so snow slides off the roofline rather than accumulating flat, a genuine structural advantage over round-top or flat-roof budget kits in snowy climates. See our gothic arch greenhouse guide.
Riga (imported by Exaco, built by Hoklartherm) — German-engineered structural steel frames wrapped in thick twin-wall polycarbonate, starting at $5,999 for the 2S and rising past $7,399 for the 4S. Built for decades of use and real wind/snow load rather than a single season. Full sizing in our Riga greenhouse guide.
Exaco — the only glass brand on this list, importing the Belgian-built Janssens Victorian line since 1988. The Junior Victorian starts at $8,799 suggested retail ($7,449 at Home Depot for the same model), and the Belgian-built Royal Victorian runs $9,799 and up. You’re paying for real tempered glass and a genuine glasshouse aesthetic, not just a bigger polycarbonate box. Details in our Exaco greenhouse guide.
How to choose a brand
- Start with your budget tier, not a brand name. The ten-times price gap between an Outsunny kit and an Exaco glasshouse buys real structural and material differences — decide what you can spend before you fall in love with a specific look.
- Match frame material to your climate. Steel and aluminum-tube budget frames (Outsunny, Quictent) are fine in mild, low-wind areas; if you get real snow load or sustained wind, look at the steel-structural Riga or Cypress-framed Gothic Arch lines instead.
- Glass is a lifestyle choice, not just a spec. Exaco’s tempered-glass Victorian line costs several times what an equivalent-size polycarbonate structure does — buy it for the look and the light quality, not because glass grows better than polycarbonate (it generally doesn’t insulate as well).
- Check whether the brand still makes the model actively. ClimaPod’s distributor-only support model is worth knowing before you buy, even though the product itself is unchanged.
The bottom line
Most buyers should start at the Palram or ShelterLogic mid-tier ($600-830) — real twin-wall polycarbonate, a name found at every major retailer, and a manageable price if the hobby doesn’t stick. Drop to Outsunny or Quictent ($110-340) for a genuinely low-risk first greenhouse, and only look at Riga or Exaco once you know you want a structure built to last decades rather than a few seasons. Full pick-by-pick detail for every brand is linked above — start with our best greenhouse kit pillar guide if you’re not sure which size you need yet.