There are three main ways to grow cannabis. Indoor uses artificial lights and full climate control — the most consistent and "premium-looking" flower, and the priciest (largely because of the energy bill). Outdoor / sungrown uses natural sunlight for one big seasonal harvest — lower cost, more sustainable, and far better than its old reputation. Light dep is a greenhouse middle path: growers use blackout covers to control the light cycle, getting multiple harvests a year from mostly free sunlight. None is automatically "best" — each is a trade-off.
Menus love to label flower "indoor," "sungrown," or "greenhouse," and shoppers often assume indoor = good and outdoor = cheap. The reality is more interesting — and knowing the difference helps you spend smarter.
Indoor — the controlled environment
Indoor cannabis is grown entirely inside, under artificial lights (LED or HPS) with full control of temperature, humidity, airflow, and CO₂. That control is its whole selling point.
- Pros: very consistent batch to batch; often dense, frosty, "premium-looking" buds and high tested THC; year-round harvests; easier pest and mold control in a sealed room.
- Cons: high energy cost (lights + climate control) is the big one, which drives a higher price and a larger carbon footprint.
One honest nuance worth knowing: indoor's premium price reflects its cost to produce as much as any guaranteed superiority. It's increasingly argued that the quality gap between top indoor and top sungrown is narrower than the price gap. Indoor is a safe bet for consistency and appearance — just know what you're paying for.
Outdoor (sungrown) — sunlight and seasons
Outdoor cannabis grows in natural soil or containers under full-spectrum sunlight, usually planted in spring and harvested once in the fall as the days shorten.
- Pros: free sunlight means much lower cost and far less energy use — the most sustainable method. The sun grows big plants and large yields, and its full spectrum (including UV) is argued to support a broad terpene and cannabinoid range.
- Cons: exposed to weather, pests, and the calendar, so it's less uniform and tied to one growing season.
That reputation traces partly to prohibition, when growers hid plants under tree cover to avoid aerial detection — producing small, sun-starved, low-potency buds. Today a craft-sungrown movement is producing excellent, terpene-rich flower, and some studies even report outdoor samples testing high for terpenes with less oxidation than indoor. A lot of cheap bulk outdoor still exists, which drags the category's average down — but the best sungrown is the real deal.
Light dep — the greenhouse middle path
This is the one most people haven't had explained. Cannabis is a photoperiod plant: it starts flowering when nights get long enough (roughly 12+ hours of uninterrupted darkness). Outdoors, that naturally happens in fall.
Light deprivation ("light dep") is a greenhouse trick to control that timing. Growers pull blackout tarps over the greenhouse to create long dark periods on demand — fooling the plants into flowering whenever the grower chooses instead of waiting for autumn. The payoff: multiple harvests a year (often two or three) using mostly free natural sunlight.
That makes light dep a genuine hybrid — the cost and sustainability of outdoor plus a key piece of indoor's control (over the flowering trigger and a sheltered environment). It sits between the two on both price and consistency.
A plain greenhouse just grows under cover with natural light. Light dep is a greenhouse that actively manipulates the light cycle. "Mixed-light" is the industry/regulatory umbrella for growing that uses both sunlight and some supplemental grow lights. In casual use these blur together — but the one-liner is: outdoor = sun only, one harvest; indoor = lights only, year-round; light-dep/mixed-light = sun-first greenhouse with light-cycle control for multiple harvests.
So which should you buy?
| Method | Best for | Trade-off | Price tier |
|---|---|---|---|
| Indoor | Consistency, appearance, top-shelf bag appeal | You pay for the energy bill | Premium |
| Light dep / greenhouse | Great quality at a fairer price; sustainability | Slightly less uniform than indoor | Mid |
| Outdoor / sungrown | Value, eco-friendliness, full-spectrum character | Seasonal; quality varies more by grower | Value |
There's no universal winner — the best move is to judge the specific flower, not the category. Look at the trichome frost, smell the jar, and check the terpene panel on the lab report. A beautifully grown greenhouse or sungrown flower can easily out-perform a mediocre indoor.
We carry flower across all three styles — indoor for the connoisseur, greenhouse and sungrown for value and character — all New York–grown and lab-tested. Tell us your budget and the vibe you want and we'll steer you to the best jar for it, not just the most expensive one.
See the difference for yourself
Browse the flower menu, or come compare indoor, greenhouse, and sungrown side by side at 377 Metropolitan Ave.