Outdoor Hydroponics Tips For Beginners

Thomas Angas by Thomas Angas | Last Updated: August 21, 2019

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If you’re lucky enough to live in part of the world where it’s possible create an outdoor hydroponics system but have been running your garden indoors then you’ve been missing out!

Running your system indoors year round can be expensive with humdifiers, grow lights, pumps and air stones running nonestop! The bills can rack up pretty quickly.

So if you are fortunate enough, why not move your setup outdoors?

Picture of an outdoors hydroponics setup

6 Outdoor Hydroponics Tips & Benefits

For many of us, part of our love for gardening comes from being outdoors. In this post, we’re going to take a look at 7 tips when creating an outdoor hydroponics system along with some of the benefits too.

Free Light

So the biggest benefit of creating an outdoor hydroponics setup is that you don’t have to pay for lighting.

Instead, you get to benefit form the biggest grow light we have – the sun!

Ideally, you’ll want to put your system in a spot with good shelter and a southern exposure. Doing this maximises the amount of sunlight your plants recieve helping them grow well.

Keep Your Water Cool

While an outdoor system has many advantages, there are some new challenges that you might not have experienced before. One of these is keeping your water cool.

Here are a few ways you can keep your water from overheating:

Keep Your Tanks Topped Up

With an outdoor water reservoir you’ll also notice that your water evaporates much quicker than it would if it was kept indoors. It’s important that you never let your tanks empty as this can be fatal to your plants. In advanced setups, you can install a float valve that will automatically top up the tank with a fresh nutrient solution if the water dips below a certain level.

Make Sure You Lower Electrical Conductivity Levels

In hotter weather it’s important to lower the electrical conductivity of your nutrient solution as your plants will need more water. By lowering the EC levels you make it easier for your plants to absorb water.

Give Your Plants A Helping Hand

During the first few days of summer your plants could really struggle. Thanksfully, there are a couple of easy options to help improve their tolerance to the head.

Liquid kelp and humic acid are both great additions to your nutrient soludion and will help your plants when it starts to heat up.

You should aim to use a 5:2 ratio of humic acid to kelp. You’re aiming to help encorage both root development which will allow for great water uptake and strengthen the plant to protect them from UV light.

This will take a while to take effect so should e done in mid-spring to give your plants the best possible chance.

Embrace The Breeze

When your plants are outside they also benefit from the wind.

When your plants have a constant breeze their pores open, this helps them absorb more carbon dioxide and regulate oxygen and water release.

Keep Pests At Bay

One of the biggest challenges of outdoor hydroponics is pest control.

To keep pests at bay, you have a number of options:

Earth Easy has a great article on managing pests and one of their best tips is encoraging ‘good’ pests. “You can set aside a small garden plot of flowering plants designed to attract and harbor beneficial insects. These ‘good’ insects prey on many common garden insect pests and offer the gardener a safer, natural alternative to pesticides”.

Find our More

The guys over at Epic Gardening have a great guide to creating your first outdoor setup:

The Bottom Line

So there you have it 6 excellent tips to keep in mind for your outdoor hydroponics system.

Image by Maciej Wojnicki.

Thomas Angas, the founder of Authority Gardening lives with his wife and two darling pups. He spends his free time writing, hiking and learning how to become a better gardener. He launched Authority Gardening in 2017 to help people all over the world their gardens grow.