There's no reason you can't use Botanicare Sweet in the last 4 weeks of flower, but it's not needed by any means.
I just use 4 things: Botanicare Bloom/CalMag/Ph Up + Hi Brix molasses
Literally my schedule is: (per gallon)
Grow: 3ml CalMag, 2tspn molasses, ph'd
week 1-2 of 12/12: 5ml bloom / 3ml calmag / 1 tblspn molasses, ph'd
week 2-4: 15ml bloom / 3ml calmag / 1 tblspn molasses, ph'd
week 4-8: 20ml bloom / 3ml calmag/ 2 tblspn molasses, ph'd
week 8-10: 2 tspn molasses, ph'd
chop and smoke
Keep it simple. You can start messing with more additives after you get your grow stable and producing the best it can.
Edit to add:
I only feed every other watering, and I let my soil get damned near crunchy before I water it. You want to let your soil dry out in between waterings.
The use of botanicare "Sweet Raw" (don't use the "flavor" ones) is to increase trichome production and size. it also increases the Terp production , thus increasing the natural "smell" of the strain. The Mg and the S do the work.
This DOES work,,,for 65.00 a gallon!
You will go through it fast as you use a rising scale of amount used, up to 20ml EVERY watering!
How would you like to make your OWN for less then a buck a gallon????
Buy yourself a bag of epsom salts and a package of DARK BROWN sugar.
Now bring 2 cups of water to a rolling boil.
Add 8 Tbl of the epson salt and 1 1/2 tsp of the dark brown sugar and boil for 3-5 min. Stir constantly to be sure the whole thing is dissolved properly.
Now add to 3/4 of a gallon of cool water in an opaque gallon container and add the boiled mix.
Bingo! You now have a gallon of "sweet" that is better then the Botanicare product.
I use it to GREAT success like this.
Last 2 weeks of veg - 10ml per gallon
First 3 weeks of bloom - 15ml per gallon
Last weeks till wash - 20ml per gallon
STILL RUN your Ca/Mg during bloom.
Mg/S, like I said is for tric and terp production and it does work....
