The best vegetables and herbs to add to indoor cannabis grow rooms

Published Apr 16, 2020 01:00 p.m. ET
iStock / AlexRaths

If you’ve got a fair-sized grow room for cannabis, and you’d like to utilize the space for more than just weed, it can be hard to decide where to start. You’ve got to consider every angle, like how much space it might take, how tall the plants might grow, and whether or not they are suited for a grow room type of environment. Luckily, we’ve done all of the hard work for you, and as a result, this is a list of the absolute best veggies and herb plants to compliment a marijuana grow room.

1. Garlic
Garlic is an excellent companion choice for a marijuana plant in an indoor grow room because it thrives under the intense conditions, and it comes equipped with natural protection. This plant produces pungent oils, which will help to keep the pests at bay, and almost everything tastes better with a little bit of it.

2. Cabbage
Most leafy plants will do well in an indoor grow room, and cabbage is no exception to that rule, as it flourishes under the same lights that you would use for a marijuana plant. It might not be as strong as garlic, but it also emits a strong aroma that wards off pesky insects, and it’s great in everything from lasagna to salads.

3. Peppermint
If you’ve been growing marijuana for a while, then chances are you’ve at least heard about this one, as peppermint is one of the most ideal companion plants to keep in both indoor and outdoor gardens, and like the first two, it also works hard to keep spider mites and other common marijuana plant annoyances at bay.

4. Lettuce
Lettuce is an excellent grow room addition because it grows so quickly, going from start to finish in as little as 30 days, which is good for a 12/12 light cycle. They, unfortunately, do not offer any kind of protection, but the grow room can help to protect them, as sweeter leafy greens like lettuce can get hit hard when it’s grown outdoors.

5. Dill
Dill is great for so many things from adding an extra tang to salads or pickles, to being a garnish for pretty much any dinner dish. It’s yet another awesome, all-natural protector, thanks to an unappealing smell that helps to scare unwanted pests away, without being too overwhelming for the grower to deal with in such a small space.

6. Celery
Celery thrives in exotic temperatures and tends to get attacked outside, which is why it is such a perfect idea to move these crunchy veggies to an indoor grow room. The only problem with this option is that it can get pretty tall, so ensure it is harvested often, or keep it a few feet away from your marijuana plant.

7. Basil
If you’re growing marijuana plants in a small space, then it’s best to stick with the smallest companion veggies and herbs, and basil falls right into that category. It doesn’t reach very high, so it isn’t going to interfere with the light that makes it to your plants, and it’s easy to harvest and can be used as a seasoning to add to all of your favorite dishes like pasta, chili, salsa, or steak.

8. Cauliflower
Cauliflower does come with a bit of a downside, as it can take quite a while to grow to maturity, and you don’t get a whole lot for the amount of space that it takes up, but it’s still one of the best companion plants that you can add to an indoor grow room because they thrive in the higher temperatures and take little to no light.

9. Coriander
Coriander is best when it’s grown under its own light in a grow room because unlike some of the other options on this list, they do prefer direct intense UVs. However, they thrive in the more humid conditions, and like peppermint and garlic, it’s excellent for keeping away pests thanks to its smell which is quite enjoyable for humans.

10. Peas
Smaller pea plants like sweet peas absolutely love a tropical climate, which can be difficult to replicate outdoors, which is why they seem to be perfectly suited for an indoor grow room. Though they don’t offer any kind of protection for your marijuana plant, they do provide high yields, and since they are viney, they won’t blot out too much of the light, which makes them an excellent addition to an indoor grow room.

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