Best 5×5 Grow Tent Yield?

There are several factors that will affect your yield. Remember a grow tent is not magic. It is dependent on the inputs you provide.

As a general rule an experienced grower, who has things dialed in and with the right strain will achieve 1 gram per watt and some do get more.

In a 5 x5 grow tent with a 1000 watt HPS grow light you should be able to achieve 1000 grams. A pound is 453.5 grams so you should be able to yield about a kilo of weed if everything is perfect.

In order to reach this goal you must provide good temperature and humidity control inside your tent and pick the right strain to grow. All strains are not created equal, some are naturally high yielders and others are more stingy with their buds.

If you are a newer grower, or are growing a strain you’re not familiar with 1/2 gram per watt is a much more realistic estimate. That is still a pound of weed and considered a good grow.

The number of plants in your grow tent will also affect yield. More is not necessarily better. Crowding can lead to problems with light penetration and disease. I have seen growers pull 2 lbs out of a 5 x 5 grow tent with just one plant using a long veg and a scrog, so sometimes less is more.

Training can greatly affect yields also, as can growing medium and nutrients you use. If you are growing hydro or in coco and use good quality nutes, a high yielding strain and provide good light penetration you should be able to achieve high yields like this inside your tent.

1000w grow lights is NOT weak for a 5x5 grow tent. I've done a side by side test, from clone, in 4x4 grow tents and came to the conclusion that a 5x5 is the smallest area you want to use a 1kw light in. 600w vs 1kw in a 4x4, the 1kw yielded less than an oz more than the 600, hardly worth the cost of running an extra 400w. Tom Hill uses a single 1kw in his 8x8 tent with stellar results. I personally use 1kw in a 6x6 area.

A pound per month is not really going to be possible, however with dialed in conditions, the right strain,and a dedicated veg tent/cab, 2lbs every 2 months is possible. Expect closer to a pound off 1kw until you get it down to a science.

Let me further explain the first parapraph. The reason many growers do not achieve 1 gram per watt of light is due to them lighting too small of an area with their light. While you CAN light a 3x3 with 1kw, you will not yield more than a 600w and only barely more than a 400w. All that light is wasted because the plants are limited by space restrictions. You're limiting the capabilities of your lights by putting them in too small of an area.

In my side by side test, that extra 400w only yielded me less than an oz, when a 400w lamp alone will yield far more than an oz. I believe I got about 9oz of my last 400w grow, so I saw it as I was selling myself short a half lb, when I was paying for enough electricity to earn it!