Fastest Growing Hydroponics Plants - Large Harvest Heavy Fruiting Plants

Updated on May 3, 2019
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I first became aware of my pelvic floor in my mid-twenties, when my years of poor caveman posture in front of the computer caught up to me.

Great ecosystem, recirculating hydroponics system
Great ecosystem, recirculating hydroponics system

Fast-Growing Hydroponics Plants

If you've ever set up a hydroponics system, or if you're running a system currently, you will know how frustrating it can be waiting for plants to be ready for harvest so you can share them with friends and family. It really helps when you get a fast-growing hydroponics plant to keep you motivated during your hydroponics journey.

I’ve experimented with quite a variety of hydroponics plants and made a short list of fast-growing options. Of course, most of them are vegetables due to the fact that fruit plants usually take a long time from planting until harvest. My Aquaponics setup at home has also shown great growth from plants that rely heavily on nitrates to grow. This means spinach and other dark green vegetables are the fastest growing vegetables and do great.


List of Fastest Growing Hydroponics Plants


Spinach of any variety does great in a hydroponics system. It really loves a nice moist environment and will be ready to harvest from a seedling after around 14–20 days. This may sound like a long time, but if you plant many spinach plants close together, you can get quite a large harvest, and if you harvest the leaves every week, you should be able to maintain a steady supply of spinach to feed your friends and family.

Like all plants, young spinach seeds and seedlings are sensitive to frost and will usually show no growth below 10 degrees Celsius (50 Fahrenheit). For optimum growth, temperatures in your green house (if you have one) should be kept at around 24 to 30 degrees Celsius (75 to 85 Fahrenheit)

The best thing about spinach is that it grows incredibly quickly, and you can begin harvesting once the leaves are an edible size, just like baby spinach. When harvesting, it's best to start from the outside of the plant and leave the inner parts to grow larger. Spinach contains one of the highest levels of zinc from a plant source.

Swiss Chard

Swiss chard is a very popular hydroponics plant and is one of the fastest hydroponics plants I’ve seen. Swiss chard will survive in soils or nutrients with a pH of around 6.2–7.

You can harvest Swiss chard at around 35 days. Even after harvesting, it will continue to grow and prosper and provide heavy harvest. The plant is very versatile and can tolerate most temperatures but thrives in cooler weather. Soil temperatures of 10–30 degrees Celsius are recommended, and it's best to plant late in summer. It’s very hardy and can handle some light freezes and frost.

Seeds for Swiss chard should ½ to 1 inch deep, and around 3–6 inches apart. Much like beets and other chards, it will produce more than one plant from the seeds, so it will require a little maintenance to ensure the plant can grow freely.

Swiss chard loves full sun, and seeds can be saved for up to 5 years, so it's easy to collect the seeds and save them for future planting. Swiss chard also has high levels of vitamin K not seen in any other plants.

Mint and Spearmint

Mint is probably my favourite as I love to chew on a mint leaf or make my own minty tea, and it's definitely the fastest growing hydroponics plant I’ve come across so far. It can take a long time to grow from a seed because germination can be tough and requires quite a lot of patience, but once it has reached the young plant stage, it will go crazy and really take over your Aquaponics system.

The best thing is to buy a mature mint plant from your local nursery and transplant it into your hydroponics system. Mint takes very little care and only requires a good water supply for optimal growth. It's great for Vietnamese cooking and in fresh salads.

That’s it for now, but I may add some more in the future as I am having great harvests from my radish and turnip plants.

Fastest Growing Hydroponics Plants

What plant grows the fastest in your garden or hydroponics setup?

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    • maisieHolmes profile image

      Maisie Holmes 

      21 months ago from USA

      The salad takes far less care and nutrients. So with fine-tuning some parameters, salads are the fastest growing plants for hydroponics.

    • profile image


      2 years ago

      @henry hydroponics are plants grown in nutrient rich solution

    • profile image


      4 years ago

      what is hydroponic

    • profile image

      Henry Walker 

      7 years ago

      What hydroponic system do you use for growing the mint

    • profile image


      9 years ago

      really need harvest in hydroponic plant.

      show to me pleEzz

    • profile image

      Chris studies Hydroponics 

      10 years ago

      Hi! Can you post closer pictures of your hyroponic set-up? What's your experience with the water source? Do you find that you have to replace it with clean water every couple of days?

    • profile image

      Middle schooler 

      10 years ago

      I am gonna do hydroponics for my science fair. I have a short time limit. Thank you for giving me the ideas on what plants I should do.

    • expectus profile imageAUTHOR


      10 years ago from Land Downunder

      glad it helped roflkopter :P

    • profile image


      10 years ago

      Doing a school project. This helped a lot. Thanks =)

    • expectus profile imageAUTHOR


      10 years ago from Land Downunder

      The greenhouse idea sounds great solokoyote they really look and feel amazing when you've got heaps of plants growing in one :) goodluck

      Thanks for the comment Mobile Phones :) I continue to learn as well from hubpage veterans :)

    • Mobile Phones profile image

      Mobile Phones 

      10 years ago from India

      I honestly like and respect your writing style, topic and research. I am learning from you.

    • profile image

      Greg Spinks 

      10 years ago from northwestern Pennsylvania

      Swiss Chard is great, one of my favs. Working on putting together a small greenhouse at home this summer and Swiss Chard will be there. Mints are good too, like them in ice tea.

    • expectus profile imageAUTHOR


      10 years ago from Land Downunder

      thanks dohn121 for the comment:) , i am a huge fan of Pho as well aah I am also super hungry too, Tried making pho at home once was hard work getting the broth right.

    • dohn121 profile image


      10 years ago from Hudson Valley, New York

      Ha ha ha! Funny that you mentioned that mint is great in Vietnamese dishes. I just thinking Pho before you said that. Now I'm starved! Great job. It's my dream to build a greenhouse such as the one depicted. I'm tired of getting to the market late and finding that all of the good quality stuff is wiped out! It was fun reading this.


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