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Tips for Using Rooting Gel on Hard to Propagate Plants

Some plants are able to propagate extremely easily, needing nothing more than a piece of a veiny leaf to reproduce asexually. There are certain species, however, that are much more stubborn. Despite an intense amount of care, only a small percentage may take root, even if you are using rooting gel. But there are certain extra steps you can take to help increase your odds of your cuttings taking root. Follow these simple measures, and you may see your cloning success rate increase dramatically.

Keep You Grow Lights on Continuously – Most hydroponic gardeners keep their lights on for eighteen hours in a twenty four hour period for their plants in the vegetative stage of development and for twelve hours in a twenty four hour period for plants in the flowering stage of development. This doesn’t just cut down light bills, it also more closely imitates the natural cycle of the sun. However, for seedlings and clones, it can actually benefit them to receive continuous light. Cuttings need as many carbohydrates as they can produce in order to create roots, and a constant light supply can help optimize photosynthesis to create those carbohydrates. You may want to use a separate timer and lamps for your cuttings to give them optimal light.

Monitor Your Room Temperature Carefully – Maintaining optimum temperature it vital for fragile cuttings. If the temperature is too low, it may slow photosynthesis, which means your stems will not receive the carbohydrates they need to form roots. If the temperature is too high, it will cause your plants to transpire rapidly, making them lose precious moisture. In addition, it can also make the moisture in your medium evaporate quickly, which would essentially negate the benefits of using a medium that holds moisture well, such as rockwool. The exact ideal temperature will depend upon what plants you are growing, but generally you should try to prevent the grow room from getting under sixty degree or over seventy-five degrees Fahrenheit. You should make sure to take temperatures several times throughout the day, including very late at night, so you have accurate idea of how the temperate fluctuates in your grow room throughout the day.

“Wound” Your Stems – “Wounding” your stems simply means using a razor blade to scrape off the outer section of the bottommost part of the stem. This will expose more the inner section of the stem, which may encourage more root formation. This will also let you apply the rooting gel directly to the inner section of the stem, where the rooting hormones can be more effective.

Surround Your Clones with White Material – Some people have reported success in cloning hard-to-clone plants by surrounding the cloning tray with white boards. Since white reflects the broadest spectrum of the light, it may work because it makes the most efficient use of your grow light, by reflecting light right back onto the stems. After you use rooting gel and place the cuttings in your tray, you may even try placing the tray in a box that has the inside panels painted white.


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Since 1999, Advanced Nutrients has been committed to educating the community and bringing the most up-to-date knowledge to the forefront of grows across the globe. Every article you read here has been curated by Advanced Nutrients’ industry experts, so you can continue raising your bud weight… and your reputation.

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Over time, components within the nutrients settle on the bottom of the bottle. When you pour a bottle without shaking it, you can potentially be pouring out an unbalanced solution. Shaking up the nutrient bottle ensures you are pouring the right blend into your reservoir, giving your crops the nutrition they need.

Usually, it’s not a problem. But some products are incompatible with each other and can damage your plants when they’re used together. For example, bloom boosters with high PK numbers or low-grade silica products can destabilize your nutrient mix and cause nutrient lockout.

Nutrient manufacturers design their products to be used with each other. In doing so, they include specific portions of each nutrient in each product, so crops receive the right nutrition through each stage of the grow cycle. When you stick with one manufacturer, you don’t have to worry about inadvertently destabilizing your nutrient mixture. One example of why you need to stick with only one manufacturer’s products is Advanced Nutrients’ pH Perfect line. These products are designed to keep your crops’ root zone within a specific pH range. When you use them alongside products from another manufacturer, we can’t guarantee your root zone will maintain its optimal pH level.

Yes! If you’re growing with Advanced Nutrients products, you can use our easy nutrient calculator to generate the correct nutrient chart for your crops in seconds. Check out Advanced Nutrients’ nutrient calculator here. Another great resource is our library of free custom-growing recipes. Try our expert grower-tested nutrient schedules here.

You can also download our official BudLabs app to generate nutrient schedules and receive real-time notifications for specific tasks, including feeding your crops. Upgrade to BudLabs Pro to maintain profiles on an unlimited number of crops.

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Just call 1-800-640-9605 or email support@advancednutrients.com. For Spanish-speaking growers, email spanishsupport@advancednutrients.com.

Yes! If for any reason you are not absolutely thrilled with the results you achieve when you use our products, just bring the unused portion, along with your original sales receipt, back to the place of purchase within six months, and ask for your money back. Find out more about our Grower Guarantee here.

Advanced Nutrients has spent many thousands of man-hours developing a technology that automatically balances your pH for you — putting it in the “sweet spot” and holding it there for one week.

And the technology is so “smart” that it can account for many of the aforementioned variables in your grow room. Our proprietary pH buffering agents and stabilizing mechanisms became the foundation of a new system aptly called pH Perfect® Technology. Learn all about it here.

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