Companion Plants (What Can Grow Together Hydroponically)
When I first started growing plants hydroponically, I just threw all kinds of crops together in the same hydroponic system and hoped for the best. I soon learned, however, that not all plants can live happily together and some will even inhibit the growth of others. That’s why it’s essential to understand which plants go well together in a hydroponic system, also called companion plants
Companion plants are plants that are planted together and will benefit each other in some way. This can be through improved growth rates, natural pest control, better nutrient absorption, and even enhancing flavor.
In this article, we’ll look at what plants can be grown together hydroponically and why it’s beneficial to do so.
What are companion plants?
Companion plants are plants, that are grown close together to create a beneficial environment for both plants. This is usually achieved by planting certain species in the same pot or hydroponic system, which can help to improve nutrient uptake and reduce stress caused by diseases and pests.
Companion planting in a hydroponic system is a bit different than in traditional soil gardening, but certain plants do thrive when grown together.
Some companion plants have been tested scientifically, while others are based on anecdotal evidence from experienced gardeners over generations, which has proven to be very effective in certain cases.
The Benefits of Growing Companion Plants Hydroponically
Growing companion plants is a great way to ensure that your plants are getting the best environment and conditions possible for optimal growth.
When plants grow they release chemicals called allelochemicals that can influence the growth of other nearby plants. By using companion plants we can minimize this effect and use it to our advantage by creating a more balanced environment for all plants.
Plants also need certain nutrients, such as nitrogen and phosphorus, in order to grow healthy. Some companion plants are known to help increase nutrient uptake, in particular nitrogen, which is an essential macro-nutrient for plant growth. Growing companion plants hydroponically helps to ensure all the plants have access to the same nutrients and aren’t competing against each other for resources.
Another beneficial reason companion planting works so well is because certain species emit odors or chemicals that are distasteful or toxic to some insects, thus protecting the other plant in the same pot or hydroponic system from attack.
Growing companion plants together also creates a beneficial environment for beneficial predators like ladybugs and lacewings which feed on harmful pests. However, an indoor garden won’t be impacted by this so much.
The Right Combination of Companion Plants
When it comes to choosing the right combination of companion plants, there are some general guidelines to follow.
For example, it’s important to ensure that you don’t mix plants with different light requirements, as this can lead to shading issues and reduce growth rates.
Additionally, you should also select companion plants that have similar water and nutrient needs (EC & ppm), to prevent one from getting nutrient deficiencies or nutrient burn
A list of companion plants that can be grown together hydroponically
Here’s a table of some companion plants that can be successfully grown together in a hydroponic setup, based on nutrient and environmental needs:
| Group | Plants | Nutrient Needs | pH Range | Temperature Range | Light Needs |
|---|---|---|---|---|---|
| Leafy Greens | Lettuce, Kale, Spinach, Swiss Chard, Arugula, Bok Choy, Mustard Greens | Moderate | 5.5-6.5 | 60-70°F (15-21°C) | Medium |
| Herbs | Basil, Oregano, Thyme, Mint, Sage, Cilantro, Parsley, Dill, Chives | Moderate | 5.5-6.5 | 65-75°F (18-24°C) | Medium to High |
| Fruiting Veggies | Tomato, Cucumber, Peppers, Eggplant, Zucchini, Squash | High | 6.0-6.5 | 70-80°F (21-27°C) | High |
| Root Vegetables | Radish, Carrot, Beets, Turnips, Onions | Moderate to High | 6.0-6.8 | 60-70°F (15-21°C) | Medium to High |
| Berries | Strawberry, Blueberry, Raspberry | Moderate to High | 5.5-6.5 | 60-75°F (15-24°C) | High |
| Vining Plants | Beans, Peas, Lentils | Moderate | 6.0-6.5 | 60-70°F (15-21°C) | Medium |
| Brassicas | Broccoli, Cauliflower, Brussels Sprouts, Cabbage | Moderate to High | 6.0-6.8 | 60-75°F (15-24°C) | Medium to High |
| Flowers | Marigold, Nasturtium, Lavender | Moderate | 6.0-7.0 | 65-75°F (18-24°C) | Medium to High |
Spacing in Companion Plants
When it comes to spacing, always remember that companion plants should never be planted too close together.
This is because the roots of each plant can compete with one another for resources such as water and oxygen and this can impact the growth of both plants.
The ideal spacing will depend on the type of hydroponic system you’re using and the size of your pots. Generally, keeping plants at least 8 inches apart will give them enough space to thrive without overcrowding.
Conclusion
The right combination of companion plants can make your hydroponic system even more efficient and rewarding. With a little bit of research and careful planning, you’ll be able to find the perfect mix for your setup.
By understanding which plants are compatible with each other in a hydroponic system, you can ensure that your plants get the nutrients they need and that they grow in harmony. With the right companion plants, your hydroponic system will be more productive, and you’ll have an even greater yield of fruits, vegetables, and herbs.
Thanks for reading this article, and don’t forget to give your plants a hug!
FAQ:
Q. What are the benefits of using companion plants in a hydroponic system?
A. The benefits of using companion plants in a hydroponic system include improved nutrient availability, better pest control, and increased yields. They also provide additional aromas and shade that can help keep your plants thriving and healthy.
Q. Are there any plants that don’t mix well together?
A. Yes, some plants do not grow well together when placed in the same tank or container system, so it is important to research which combinations work best for you before mixing them together in your setup. For example, cucumbers and potatoes should not be grown together as they compete for nutrients from the same sources. Similarly, peppers and tomatoes should not be grown in close proximity as the peppers will stunt the growth of the tomatoes.
Q. Is it easy to find companion plants for my hydroponic system?
A. Yes, it is relatively easy to find compatible companion plants for your hydroponic system. With a bit of research, you can find plants that complement each other and provide additional benefits such as pest control, improved nutrient availability, and increased yields. You can also check with local garden centers or online retailers for further advice on which combination may work best in your particular setup.
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