To water or never to water that is 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 believe that adding more water for their plants inside their hydroponic systems can help them grow bigger and better. This notion cannot be farther from the facts as overwatering has killed many a novice indoor garden. This information explores the proper watering methodology for rockwool in an indoor grow box.
Rockwool is made from molten rock spun into fibers like cotton candy. It offers an excellent substrate for plant roots since it holds at least 18% air all the time and provides the plant root zone with lots of oxygen. However, additionally it possesses a higher water holding capacity (WHC) and is an inert medium meaning you will find no biological properties so it is recyclable. Rockwool is sterile so you may be certain that you are starting fresh whenever you germinate your seeds. Seed borne disease like dampening off are nonexistent in rockwool due to the sterility of the medium. All the last listed benefits enable rockwool to consistently the most popular hydroponic growing medium in indoor grow boxes.
As a general rule for watering rockwool: less is more. Determining how much water depends upon many factors such as for example plant height and lifecycle stage, light cycle, humidity and the sort of hydroponic technique employed in grow boxes. The four most widely used of grow box hydroponic techniques are Ebb and Flow, Drip/Top Feed, Deep Water Culture, and Aeroponics. Indoor Grow Systems Rockwool may be used in all four systems and it’s most effective in a mix of technique system. Hydroponic superponics systems that employ the fusion of hydroponic technologies offer probably the most complete solution for growing plants effectively with rockwool. Combining top feed drip with deep water culture enables an indoor grow box owner the capacity to automate watering from germination to harvest by timing effective watering cycles right down to the minute.
The question then arises: how often do I water my rockwool in my own combined deep water culture/ top feed drip system? It’s always best to begin your watering cycle when your lights first think about it in your indoor grow box. The final watering should occur three hours ahead of the lights go off. Only water once the lights are on, the plants do not need to be watered throughout their dark or resting phase. So to keep the cubes moist when your plants are below 3 inches you water once for 15 minutes every 2-3 days, ensuring the rockwool cube feels about “half-way” dry. Whenever your plants have reached 6 inches, water 1-2x a day. Whenever your plants have reached 9 inches increase watering to 3x per day and once the plants are 12 inches and larger you want to water 15 minute 3-4x a day. Even although plants roots will soon be embedded in the deep water culture it’s good for still utilize your rockwool cubes for water delivery.
Here are some other tips to improve success when watering your rockwool in an indoor grow box. Use plastic covers over your rockwool cubes to stop algae formation. Algae at the the surface of the rockwool cube can result in stem rot. If you would like 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 least 1 hour to eliminate excess salts and material from the cubes. Conditioning the rockwool is a significant first faltering step and will greatly boost your propagation efforts. The pH of your nutrient solution being absorbed by the rockwool ought to be between 5.5 and 6.0. Stay away from drastic changes in the plant’s environment such as for instance a huge pH fluctuation or adding an excessive amount of nutrient solution. Rockwool drains well, but make sure the rockwool isn’t sitting in standing water as this can impact the rockwool’s ability to generate a solid root mass. Finally don’t let the rockwool cubes go bone dry, keep rockwool moist and in consistent temperature, humidity and light intensity and rockwool will reward you with the best tasting end product you’ve ever had.