Grow Knowledge Database


Author: CANNA   Date Posted: 10 October 2017  

When your growing your own plants, feeding your plants is complicated. The right mixture of nutrients is essential. Mixing the wrong nutrient solution may cause blockage. Check the Need To Know video to find out more. ...

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Author: E. Vinje from Planet Natural in Bozeman, Montana   Date Posted: 9 October 2017  

Gardeners have been saving seed ever since we settled into one place and started growing our own food. Thanks to seed saving, and passing them down from one generation to the next, we have the heirloom seeds and plant varieties that are so prized today. It’s only since the end of World War II that growers have had the option of buying affordable, high quality commercial seeds; before that saving your own seeds or trading with neighbors was the only way to procure prospective plants. Saving garden seeds at the end of each growing season can be a great cost saving measure and a way ...


Author: Khang Starr   Date Posted: 3 October 2017  

Once lettuce plant can produce enough seeds to last you for many seasons. In this video, Khang will show you how to save lettuce seeds and use them. Original video: https://www.youtube.com/watch?v=DHsHFl0Olwc​ ...


Author: MaximumYield   Date Posted: 27 September 2017  

Definition - What does Rockwool Cube mean? Rockwool cubes, also called stonewool cubes, are best used to germinate seeds and root cuttings. They are a form of Rockwool, a popular growing medium for hydroponic gardening. Manufacturers create Rockwool cubes by spinning a combination of basalt and chalk to create an intertwined mixture that resembles the consistency of cotton candy. The material is then pressed and form ...


Author: Dray Perkins   Date Posted: 27 September 2017  

Takeaway: Hop crops are in big demand these days, but can they be grown hydroponically? Let's take a look. W hile hops have lately garnered attention worldwide as a favorite consumable crop, one question that remains is, “Can they be grown hydroponically?” ...


Author: Eric Hopper   Date Posted: 21 September 2017  

Q: I’m about to buy my first grow tent. What sort of lighting system is best? And how many lights do I actually need? A: High-intensity discharge lights, including metal halide and high-pressure sodium, are still the most commonly used lighting systems in grow tents. However, many growers have been turning to fluorescents or LEDs with great success. Although grow tents differ from a typical growroom in a few ways, the same basic principles for lighting requirements still apply. If you are using HID or fluorescents, you should ...


Author: CANNA Research   Date Posted: 21 September 2017  

Temperature is a key factor in plant growth and development. Along with the levels of light, carbon dioxide, air humidity, water and nutrients, temperature influences plant growth and ultimately crop yields. All these factors should be in balance. Temperature influences the plant in the short term as well as the long term. ...


Author: Canna   Date Posted: 19 September 2017  

Coco substrate can act as a buffer, storing water and nutrients for the plant. Buffering can work in several ways. There are water buffers, pH buffers, nutrient buffers and the coco buffer. What are the differences? ...


Author: Canna   Date Posted: 12 September 2017  

Giving your plants water with water that is too hot or too cold will affect to oxygen uptake of your so carefully grown plants. The substrate on which you are growing needs to have the right temperature as well, or your plants will stress out! ...


Author: Bluelab   Date Posted: 11 September 2017  

Watch how to prepare the Bluelab Guardian Monitor for the first use. You'll find tips for care and storage throughout the video. ...


Author: P.L. Light Systems   Date Posted: 11 September 2017  

Successful grow lighting begins with a carefully considered light plan. A light plan calculates the best possible coordination of grow lights in terms of their distance and orientation from one another, as well as the crops. The trick lies in determining the ideal combination of these factors to ensure that you will achiev ...


Author: JENNY SUGAR   Date Posted: 11 September 2017  

If you care deeply about your health and want to try a new and delicious food that can help you drop a few kilos, you're going to want to pick up a bag of hemp hearts. These are raw hemp seeds that have the hull or shell removed, leaving a small, soft and chewy, mild-tasting, nutty seed that's easier to digest than hemp seeds. Here are three reasons these tiny gems are not only super nutritious but, as a bonus, can also help you reach your weight-loss goals. ...


Author: Canna   Date Posted: 11 September 2017  

Giving your plants water with water that is too hot or too cold will affect to Oxygen uptake of your so carefully grown plants. The substrate on which you are growing needs to have the right temperature as well, or your plants will stress out! ...


Author: Chris Bond from MaximumYield   Date Posted: 5 September 2017  

Takeaway: If you give your plants too much love, it’s possible you’ll both feel the burn. Here's h ...


Date Posted: 31 May 2017  

EBB & FLOW system The ebb and flow hydroponic system (also called flood and drain) is the classic hydroponic setup. It is easy to understand, build and maintain. It's versatile and can accommodate pots of any size, or even rockwool blocks. Individual potted plants are arranged on a drain table or "growing bed" which can hold a few inches of water. Periodically, the nutrient solution is pumped in, flooding the holding bed. The plants are watered from the bottom through the drain holes in the pots. After a few minutes of soaking, the ...


Date Posted: 31 May 2017  

Basic Wick Systems Introduction Pro & Con Here we're going to cover the basics of wick systems which are designed for simple hydroponic growing. As a passive method, they do not have moving parts, making it easier to understand and maintain than other active systems. Wick systems are the simplest method of growing hydroponically, and are therefore, an excellent option for beginners. However, there are downsides to usi ...

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Author: cch2o   Date Posted: 31 May 2017  

Our Under Current® RDWC systems are specifically designed to deliver high levels of aeration and circulation. These supercharged conditions allow your plants to uptake water and nutrients easier and more efficiently. With this increased efficiency it is very important to provide the correct amount of nutrients to your plants to ensure consistent growth rates and a successful grow cycle. High nutrient levels are one major factor that can slow down your plants growth rates and hurt your overall yields. High and Low Nutrient Levels M ...


Author: Luis Rivera   Date Posted: 1 May 2017  

Takeaway: LED grow lights bring definite benefits, but choosing the right product usually proves to be quite challenging. Here are the most important things you should look for when making yo ...


Author: JTRourke   Date Posted: 9 December 2015  


Author: Great Big Story  

Growing up in a family of 13, Phillip Vowles learned to appreciate the effort it took to feed all his brothers and sisters. So when he started harvesting his own crop, he decided to supersize his venture. As Phillip says, “big vegetables feed big families.” Today, his giant veggies top-out at over 100 ...


Author: phresh filters  

Phresh Filters and Pressure Drop Carbon filters cause a pressure drop across the fan. An unrestricted fan working on full power will give the manufacturer’s specified air flow but when a carbon filter is connected to the fan it will reduce the air flow. Phresh Filters have the lowest air flow drop across any fan due to the carbon quality and superior design. The triple activated carbon RC4/8 is perfectly sized to give you the best air f ...


NFT System Today, we will go over the Nutrient Film Technique (NFT) system. The NFT is a popular hydroponics system for home growers and is usually used to grow small, fast-growing plants such as lettuce. Commercial growers also often use NFT systems to grow various kinds of herbs and baby greens. The advantage of an NFT system is that the plant roots are properly exposed to the oxygen, nutrients, and water the ...


While aeroponic systems are simple in concept, they are the most technical of the hydroponic systems. Even still, it is possible to build an aeroponic system in your home with relative ease. Aeroponic systems are unique because they do not usually need growing medium of any kind; the air acts the growing medium. The advantage to this type of system is that it provides roots with more oxygen than any other hydroponics growing system. Additionally, aeroponic syste ...


Drip System Drip systems are widely used by different growers because they are very effective for growing hydroponically, low maintenance and produce little waste. How It Works The drip system works by constantly dripping nutrient solution onto your growing medium. The nutrient solution is pumped from the reservoir through tubing, which runs along the top of the growing medium, where the solut ...

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How It Works In water culture systems, the plant is suspended in pots, baskets, or cups above the reservoir filled with nutrient solution. The roots hang down and are constantly submerged into the nutrient solution. This system uses an air pump to ensure that the roots get the oxygen they need so they don’t suffocate. The best water culture systems provide many air bubbles that make direct contact with the roots. There are actually two different ways to ...


Proper odor control can be a very important part of any indoor garden. There are a few major methods that growers use to manage the odor produced by their garden. Depending on the type of plants you grow, you may not want the odors produced to escape your grow room. For example, lemon sage and castor beans are very fragrant. We hope this guide will help you select the correct odor management system for your grow room. Carbon Filters There are many methods available for controlling odor, the most popular of which is a carbon filter. A c ...


Before we get into the pros and cons lets do a quick primer on vaporizing. Vaporizers be known as Electronic cigarette's but there is numerous type of Vaporize. Some Vaporizers just carry a liquid, sometimes referred to as e-juice or e-liquid, which is a mixture of propylene glycol, glycerin, flavors and sometimes nicotine but some advanced products can vapor the chemical content from herbs or tobacco directly. Compare that with a standard Bic lighter, which produces a flame approximately 1100-1500 degrees Fahrenheit. A vaporizer heats the tobacco to around 3 ...


Author: ERIK BIKSA  

CDM/CMH Lighting for Horticulture Ceramic metal halide grow lights are gaining increasing attention for horticultural applications, especially with indoor growers using artificial lighting such as HPS, MH or LED to grow crops without using sunlight indoors. Urban farming is an important and growing area in the agri-hort sector and efficient crop lighting that allows more harvest for less power is critical. At present time, the wattages of ce ...


Author: Robin Horton  

There are 6 basic types of hydroponic systems; Wick, Water Culture, Ebb and Flow (Flood & Drain), Drip (recovery or non-recovery), N.F.T. (Nutrient Film Technique) and Aeroponic. There are hundreds of variations on these basic types of systems, but all hydroponic methods are a variation (or combination) of these six. Scroll down this page (or click on the system names) to see drawings and a description of each type of hydroponic system. ...

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CONSTRUCTION UNIT HOUSING High-quality LED grow lights are made with a metal housing. If the unit is plastic do not purchase it. Aluminium is an excellent heat conductor and helps transfer excess heat that is produced by the LEDs. DRIVER Look for grow lights that contain a "constant-c ...


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