Sprinkling Rockwool In a Indoor Grow Box.

July 15, 2020 Other  No comments

To water or not to water that’s the question. Every indoor grow box owner has asked themselves if they are under watering or over watering their rockwool cubes. Many novice indoor grow box growers genuinely believe that adding more water to their plants within their hydroponic systems can help them grow bigger and better. This notion can not be farther from the truth as overwatering has killed many a novice indoor garden. This article explores the proper watering methodology for rockwool in an internal grow box.

Rockwool is manufactured out of molten rock spun into fibers like cotton candy. It has an excellent substrate for plant roots since it holds at the very least 18% air all the time and provides the plant root zone with plenty of oxygen. However, in addition it possesses a higher water holding capacity (WHC) and can be an inert medium meaning there are no biological properties so it’s recyclable. Rockwool is sterile so you may be certain that you will be starting fresh when you germinate your seeds. Seed borne disease like dampening off are nonexistent in rockwool due to the sterility of the medium. All the previous listed benefits enable rockwool to consistently typically the most popular hydroponic growing medium in indoor grow boxes.

As a general rule for watering rockwool: less is more. Determining how much water is dependent upon many factors such as for example plant height and lifecycle stage, light cycle, humidity and the kind of hydroponic technique employed in grow boxes. The four most popular of grow box hydroponic techniques are Ebb and Flow, Drip/Top Feed, Deep Water Culture, and Aeroponics. Indoor Grow Boxes Rockwool can be used in all four systems and it’s most effective in a combination of technique system. Hydroponic superponics systems that employ the fusion of hydroponic technologies offer the absolute most complete solution for growing plants effectively with rockwool. Combining top feed drip with deep water culture enables an internal grow box owner the ability to automate watering from germination to harvest by timing effective watering cycles down to the minute.

The question then arises: how often do I water my rockwool within my combined deep water culture/ top feed drip system? It’s always best to start your watering cycle as soon as your lights first seriously in your indoor grow box. The past watering should occur three hours ahead of the lights go off. Only water when the lights are on, the plants do not have to be watered during their dark or resting phase. So to help keep the cubes moist as soon as your plants are below 3 inches you water once for 15 minutes every 2-3 days, making sure that the rockwool cube feels about “half-way” dry. As soon as your plants have reached 6 inches, water 1-2x a day. As soon as your plants have reached 9 inches increase watering to 3x a day and when the plants are 12 inches and larger you want to water 15 minute 3-4x a day. Even although plants roots is likely to be embedded in the deep water culture it’s beneficial to still utilize your rockwool cubes for water delivery.

Below are a few other tips to boost success when watering your rockwool in an internal grow box. Use plastic covers over your rockwool cubes to prevent algae formation. Algae at the top of the rockwool cube can cause stem rot. If you want more active plants water less as overwatering will inhibit root production. Always soak or “condition” your raw rockwool cubes in plain water with pH of 5.5 for at the very least 1 hour to eliminate excess salts and material from the cubes. Conditioning the rockwool is a significant first step and will greatly increase your propagation efforts. The pH of your nutrient solution being absorbed by the rockwool should be between 5.5 and 6.0. Try to avoid drastic changes in the plant’s environment such as a huge pH fluctuation or adding a lot of nutrient solution. Rockwool drains well, but make certain the rockwool isn’t sitting in standing water as this will impact the rockwool’s ability to generate a solid root mass. Finally don’t allow the rockwool cubes go bone dry, keep rockwool moist and in consistent temperature, humidity and light intensity and rockwool will reward you with the most effective tasting end product you’ve ever had.

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