What Size Grow Tent Should I Choose? (2025 Guide for Maximum Yields)
By TheOneGrow Team
Choosing the right grow tent size is crucial for maximizing yields, managing space, and optimizing light efficiency. Whether you're a beginner with limited space or a commercial grower scaling up, this guide will help you pick the perfect tent size based on:
✔ Available indoor space
✔ Number of plants you want to grow
✔ Expected harvest yields per cycle
✔ Recommended grow light & ventilation setups
1. Grow Tent Sizes & How Many Plants They Fit
The number of plants your tent can hold depends on:
Training method (LST: Includes SOG, SCROG.)SOG aka Sea of Greens, Both SOG and SCROG are low-stress training (LST) exercises designed to maximize the use of light at the tip of the plant. But their application methods differ from the principles used to increase yields. SOG increases total yield by increasing plant density, while SCROG increases overall yield by increasing yield per plant. If you're interested in learning more about these two cultivation methods, check out our upcoming blog posts.
Strain size (indica = compact, sativa = tall)When you grow different types of weeds, the different cultivation methods and planting densities you use will also result in different sizes of space needed to grow the same number of plants. Indica is better suited for small spaces, whereas Sativa is larger. If you're interested in different strains, you can follow our upcoming blog posts.
Pot size (3gal, 5gal, 7gal)Under general circumstances, we recommend a 5 gallon grow bag. Of course, you can also use different sizes of grow bags according to your needs.
Here’s a quick general guideline:
| Tent Size | Plants (SOG) | Plants (SCROG) | 5 Galon pot |
|---|---|---|---|
| 2x2 ft | 1-2 plants | 1 plant | 1 plant |
| 3x3 ft | 4-6 plants | 2-4 plants | 2-4 plants |
| 4x4 ft | 8-12 plants | 4-6 plants | 4-6 plants |
| 5x5 ft | 12-16 plants | 6-9 plants | 6-9 plants |
⚠ Pro Tip:
SCROG (Screen of Green) lets you fill the tent with fewer plants by training branches horizontally.
SOG (Sea of Green) uses many small plants for faster harvests.
2. Expected Harvest Yields per Tent Size
Your yield per grow depends on:
✔ Lighting efficiency (LED vs. HID)
✔ Strain genetics (high-yield vs. low-yield)
✔ Growing experience (optimal conditions = bigger buds)
Average Yields (With Proper LED Lighting & Training)
| Tent Size | Yield (Beginner) | Yield (Experienced Grower) |
|---|---|---|
| 2x2 ft | 2-4 oz | 4-8 oz |
| 3x3 ft | 6-12 oz | 12-18 oz |
| 4x4 ft | 1-1.5 lbs | 2-3 lbs |
| 5x5 ft | 2-3 lbs | 4-6 lbs |
Example: A TheOneGrow user from California told us that he set up 4 TheOneGrow oc 800s in an 8x8 tent and harvested 8.82lbs buds.
Harvest about 2 oz of buds per square foot.
What a bona fide harvest!
Usually A 4x4 tent with a 600W LED and 4 trained plants can yield 2+ lbs per harvest in optimal conditions.
Based on this data, you can decide how much area to plant based on how many buds you want each harvest period, and then choose your favorite tent
3. Matching Tent Size to Your Space & Goals
One of the most important questions is, of course, to consider your own free space, and generally we recommend choosing a tent that is slightly smaller than yours. It is also a good choice to place it in the basement or garage. If it is placed in a living space, it is necessary to purchase deodorization tools such as filters to prevent the aroma of weeds from spreading everywhere.
▶ Small Spaces (Closet, Apartment) → 2x2 or 3x3 Tent
✔ Best for: 1-4 plants, stealth grows, autoflowers
✔ Light needed: 100-300W LED (e.g., TheOneGrow MA1200/TheOneGrow MA2000)
✔ Yield: 4-18 oz per harvest
▶ Medium Spaces (Spare Room, Garage) → 4x4 Tent
✔ Best for: 4-6 trained plants, high-yield photoperiods
✔ Light needed: at least 500-650W LED (e.g., TheOneGrow OC 800)
✔ Yield: 1-3 lbs per harvest
▶ Large Spaces (Basement, Commercial) → 5x5 or Bigger
✔ Best for: 6+ plants, perpetual harvests, commercial ops
✔ Light needed: at least 750W+ LED (e.g.,TheOneGrow OC 800/TheOneGrow OC 1000 )
✔ Yield: 4-6+ lbs per harvest
4. Pro Tips for Maximizing Your Tent’s Potential
Use SCROG training skills – Increase yields without adding more plants.
Pick the right strain – Indicas (short/bushy) work best in small tents.
Control environment – Temps , humidity, and airflow are key.
Don’t overcrowd! More plants ≠ more yield if they’re competing for light.
Final Verdict: What Size Grow Tent is Right for You?
Beginner? Start with a 3x3 tent (manageable, great yields).
Limited space? A 2x2 tent fits in closets.
Serious about yields? A 4x4 or 5x5 tent is the sweet spot.
🚀 Ready to pick your tent? Check out our top-rated grow tents & complete kits to start growing like a pro!
View our homepage：www.theonegrow.com
🌿 Happy growing—may your harvests be heavy! 🌿