How to use in soil:
If your plants are under 36” you only need to use the Hammer once, this should be used in the last week of veg. Once you hit the plant with the Hammer it usually takes 7 days to take full effect, it will grow a little in this time. After it takes effect it will grow maybe 12” at the most for the rest of the plants life.
If your plants are 36”, or above, you will apply the hammer twice. The first application will be the same as before you will add it in the last week of veg and it will slow down the growth. The second application will be in the first week of flower just after you flip them. After the second application it will take 3-4 days to take full effect after this you will have very minimal growth maybe 12” for the rest of the plants life depending on what strain it is.
How to use in hydro:
Apply the Hammer in the last week of veg. The best way to do it is to add just Hammer to the reservoir, let it circulate for 2 days after the 2 days you can top up your reservoir with your nutrients and water. The hammer will take full effect after 3-4 days. You have to keep a close eye on the plant if you notice it starting to stretch slightly you must apply it a second time. Do it exactly the same way you did it on the first application.
After you apply the Hammer your plant will grow maybe 12” at the most for the rest of the plants life.
The Hammer is very strain specific some plants only need to be hit once some plants have to be hit twice that’s why you have to keep a close eye on what the plant is telling you.
Don’t apply the Hammer after the first week of flower. And make sure you only use the Hammer a maximum of 2 applications. Using the Hammer after the first week of flower can have negative effects on the plant. Also using it more than twice can have negative effects, it can put the plant in to shock. The plant goes through a lot of metabolic changes at this stage and needs a certain amount of gibberellins to do so. Adding the Hammer after the first week of flower is going to stop the gibberellins production which will have negative effects on the plant.