Essential Features of Grow Tents

Grow tents create greenhouse conditions for your flowers and plants in a space that can be small enough to fit in your bedroom closet. These tents allow home growers to control the air flow, light, heat and humidity of their plants in a convenient cubicle that’s easy to operate. Not all grow tents are created equal. In addition to variations in size (some are large enough to be called grow rooms), they can vary greatly in features that may or may not be considered important at the time of purchase, but can lead to buyer’s remorse after a certain project ends up failing. Look for the following features in a grow tent to avoid regretting your purchase.


Air flow inside of a grow tent is controlled by ducts and free from air vents. Ducts are separate accessories attached to the tent’s ducting ports. A grow tent can have anywhere from two to seven ducting ports. Most ports have short sleeves that draw close with drawstrings to keep out light. Free flow air vents are flaps around the edges of a tent that use zippers or Velcro to open and close. A ducting port works in conjunction with a blower, while using a free flow air vent is more or less like opening a window.

Light Control

Controlling the light within a tent is crucial. The quality of the light provided will determine that amount of photosynthesis that happens. The best LED grow lights use triband bulb that seem dim to the human eye, but concentrate on the red, orange and blue parts of the spectrum that plants need for photosynthesis. CFL and MH grow lights can also be used, and there are many opinions over which is best.

Light tightness is an equally important factor. The ideal grow tent would have no sunlight, moonlight, indoor lighting or deck lighting coming in from the outside. The reality is that many tents have light leaking in through the zippers and other closures around the flaps, ports and vents. Testing grow tents in person by standing inside them and checking for light leakage is recommended.

Frame Quality

Most grow tents will use steel framing, PVC framing, or a hybrid of the two—i.e., steel rods with PVC corner mounts. The best frames are all-steel. Strong frames have strong crossbeams on the ceiling for hanging accessories light carbon filters, fans, and grow lights. Two tents that might otherwise look identical but differ in price will usually reflect the price difference in the quality of the frame.

Comparing Grow Tents

Shopping for grow tents online can be useful for gather and comparing objective criteria, like the number of ports, but if you can physical inspect a grow tent in a retail outlet, you can assess more subtle or subjective criteria like light tightness or build quality. It is highly recommended that you review grow tents in person and actually standing inside of them to get a feel for the environment—or at the very least, scrutinize online customer reviews.