Full Version: Epsom Salts
Have recently been re introduced to this chemical and have been adding it to my water ongoing for about 3 weeks now. As far as I can understand and read, cannabis uses Epsom salts heavily and I found that it helps me with bud growth. Have any of you seen this with your plants, anyone that swears by it or has further information on thier grows? I have seen the sticky on this forum. Good smoking.
careful how much you use, not all plants need it, and you should not be using it ongoing as you say. TBH I have had more problems using epsoms than it has benefited. I think it easy to get mixed up with dosages, there is a lot of conflicting info about both on the actual manufacturers recomendations and posts on here I think. My previous cock ups have scared me away from using it 
Depending on your soil your plants may need a one off feed - not epsoms at every watering. You're storing up problems for yourself by doing that.
If you've got a clear mg deficiency you may need to foliar feed as well but that's it.
In other words if your plants aren't showing any signs of mg deficiency - they don't need epsoms.
If you've got a clear mg deficiency you may need to foliar feed as well but that's it.
In other words if your plants aren't showing any signs of mg deficiency - they don't need epsoms.
Hi Goldie
Thanks for the reply. I usually put half a cup full to 20 gallons. I agree too much of a good thing can cause problems, thanks for the tip I will use. That said I usually mix and match organic additives to the plants, depending how they are looking and how I am feeling. I first noticed symptoms of magnesium deficiency in 6 of my plants, yellowing of veins in the lower leaves, yellowing of the leaf, and then the entire leaf dying. I removed these leaves anyway, added epsom salts and have seen far stronger growth with a darker leaf colour, this could also be caused by other nutrients. What symptoms were shown in your plants when overfeeding with epsom salts? I think it must take a lot to overdo epsom salts in soil. Good smoking.
Thanks for the reply. I usually put half a cup full to 20 gallons. I agree too much of a good thing can cause problems, thanks for the tip I will use. That said I usually mix and match organic additives to the plants, depending how they are looking and how I am feeling. I first noticed symptoms of magnesium deficiency in 6 of my plants, yellowing of veins in the lower leaves, yellowing of the leaf, and then the entire leaf dying. I removed these leaves anyway, added epsom salts and have seen far stronger growth with a darker leaf colour, this could also be caused by other nutrients. What symptoms were shown in your plants when overfeeding with epsom salts? I think it must take a lot to overdo epsom salts in soil. Good smoking.
Are you sure what you are seeing is a mg def cos an mg def is where the veins stay green mate not yellow as you described
I can assure you cannabis doesnt need the amount of mg you are feeding
In some cases there is enough mg in your tapwater alone to sustain our plants
Owd
I can assure you cannabis doesnt need the amount of mg you are feeding
In some cases there is enough mg in your tapwater alone to sustain our plants
Owd
Hi Owderb
I am sure Mg deficiency is yellowing of the veins, and we all want green veins;-). Epsom salt is a mobile nutrient and is used by the plant especially into flowering. I have never really heard of MG being overfed to plants as I dont believe it can be toxic to plants unless fed in ridiculous amounts. So I am interested to hear of anyones experiences with epsom salts. And for me so far so good. But agreed I think I should lay off the white crystals for a bit, but would like to test it further.
I am sure Mg deficiency is yellowing of the veins, and we all want green veins;-). Epsom salt is a mobile nutrient and is used by the plant especially into flowering. I have never really heard of MG being overfed to plants as I dont believe it can be toxic to plants unless fed in ridiculous amounts. So I am interested to hear of anyones experiences with epsom salts. And for me so far so good. But agreed I think I should lay off the white crystals for a bit, but would like to test it further.
QUOTE
I am sure Mg deficiency is yellowing of the veins
I'm afraid you are wrong mate
The veins stay green, and the leaf inbetween starts to yellow.....trust me
Owd
QUOTE
In some cases there is enough mg in your tapwater alone to sustain our plants
Water in my area has an unusually high PH and I use the sister of epsom salts magnesium oxide to stablise the soil aswell as add magnesium sulphate to the soil. I am not to sure on the magnesium content of our water, but I am sure that would not be to hard to find. Again I use small amounts, and believe less is more. I can say that I have good growth, slow flowering, and would always wish for bigger fatter buds, but all in all I am harvesting some top quality bud.
Ok sorry you are right, just ran to grab the Jorge Cernates Bible book. " Lower and latter middle leaves develop yellow patches between darker green veins and rusty brown spots on leaf margins, tips and between veins. Leaf tips usually curl upwards before dying. "
Hey
Please also give me benefit of doubt about this yellowing thingy, I recently rolled and smoked a fat spliff, and been sitting with a dry mouth 1 sentence behind everyone. Anyway making nice debate on here, and hopefully get some more epsom salt reviews. Peace and one love.
Please also give me benefit of doubt about this yellowing thingy, I recently rolled and smoked a fat spliff, and been sitting with a dry mouth 1 sentence behind everyone. Anyway making nice debate on here, and hopefully get some more epsom salt reviews. Peace and one love.
Good stuff Epsom Salts, fed one girl some last week, pleased to report shes happy now.
Also try having a bath with Epsom Salts, does wonders!
Also try having a bath with Epsom Salts, does wonders!
Hell yeah, put a cup and half in the bath last week, first time ever with pure epsom, normally use essential oil mixes, salt crystals..
Read it detoxes the body and magnesium is absorbed through the skin, but you must lie in the bath for 15 minutes. Many beauty spa's here use it in their salons. So I am sure its very benefitial for us and plants to. Many people here by epsom in 14 gram sachets and add it to pot plants and swear by better growth.
Read it detoxes the body and magnesium is absorbed through the skin, but you must lie in the bath for 15 minutes. Many beauty spa's here use it in their salons. So I am sure its very benefitial for us and plants to. Many people here by epsom in 14 gram sachets and add it to pot plants and swear by better growth.
Too much magnesium will cause other nutrients to be locked out and interfere with the microherd if used excessively - it should only be used if the plants are showing signs of being deficient in it (i.e. interveinal chlorosis in the lower leaves). 
This is my favorite bit of advice concerning epsoms......basically a little at the right time will not do any harm and could do a lot of good, but as has been said don't overdo it.......
QUOTE (oldtimer1 @ Nov 4 2008, 10:59 AM) 
Just to clear things up a little, at the time I gave Red Dragon advise he was using allmix compost, Biobizz had taken the production of their composts in-house about a year before! We were seeing member after member with Mg problems especially in the cold months of the year.
It was obvious that the new allmix of the time had more N and much less Mg than the allmix versions previously sold.
The time when cannabis uses very large amounts of Mg, is during the change into flowering mode and the early flowering period. If the compost being used by the plant is low in Mg reserves, the plant will start stripping Mg from the lower leaves to form the flowering parts. Any shortage from week 2 through to week 6 will reduce flower formation especially during the week 3 to 5 period.
Adding a heaped table spoon of epsom salts dissolved in 10 litres of feed at week 3 will do absolutely no harm whatsoever, even if the compost used has adequate Mg reserves! With the allmix of the time it made the difference between a mediocre crop and a good one.
The main thing is, not to keep adding Mg via epsom salts as it will lock out other nutrients if overdone, once the rootball/compost is damaged in this way, there is no way back. Quite a few members have overdone the epsom salts and suffered the consequences, then gone the other way saying only mist, don’t water them in.
I disagree! As with anything, all things in moderation. I always give some extra Mg with the feed round the 2 to 3 week flowering period, I do it in a slightly more complicated way the total dose being the same, in that I feed less per dose over 3 feeds, ie at a heaped teaspoon per 10 litres each feed, the total amount being the same as a heaped tablespoon in 10 litres in one feed, I find the plants are less stressed and do better for it, flowering more profusely..
It was obvious that the new allmix of the time had more N and much less Mg than the allmix versions previously sold.
The time when cannabis uses very large amounts of Mg, is during the change into flowering mode and the early flowering period. If the compost being used by the plant is low in Mg reserves, the plant will start stripping Mg from the lower leaves to form the flowering parts. Any shortage from week 2 through to week 6 will reduce flower formation especially during the week 3 to 5 period.
Adding a heaped table spoon of epsom salts dissolved in 10 litres of feed at week 3 will do absolutely no harm whatsoever, even if the compost used has adequate Mg reserves! With the allmix of the time it made the difference between a mediocre crop and a good one.
The main thing is, not to keep adding Mg via epsom salts as it will lock out other nutrients if overdone, once the rootball/compost is damaged in this way, there is no way back. Quite a few members have overdone the epsom salts and suffered the consequences, then gone the other way saying only mist, don’t water them in.
I disagree! As with anything, all things in moderation. I always give some extra Mg with the feed round the 2 to 3 week flowering period, I do it in a slightly more complicated way the total dose being the same, in that I feed less per dose over 3 feeds, ie at a heaped teaspoon per 10 litres each feed, the total amount being the same as a heaped tablespoon in 10 litres in one feed, I find the plants are less stressed and do better for it, flowering more profusely..
Thanks bluepixie.
Note taken.
QUOTE
The main thing is, not to keep adding Mg via epsom salts as it will lock out other nutrients if overdone, once the rootball/compost is damaged in this way, there is no way back.
Note taken.
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