Is rainwater good for cannabis plants?

Star Dog

Star Dog

Well-Known Member
Idk I use hydro but I read something recently, my understanding is that rain water is very low in minerals as it's evaporated water, water traveling over the ground ie a stream/brooke picks up dissolved minerals.

That predictive/auto correct or whatever tf is really fkg annoying most of the time.
 
hotrodharley

hotrodharley

Well-Known Member
It's almost totally free of any solids. No minerals. pH can be 5.5 out the bucket. Is it good for plants? If you've ever lived in the desert you already know that answer. From dead and brown to brilliant green with wildflowers exploding come monsoon season. Do not assume because mine tests at 5.5-5.7 that your's does.
 
MICHI-CAN

MICHI-CAN

Well-Known Member
hotrodharley said:
It's almost totally free of any solids. No minerals. pH can be 5.5 out the bucket. Is it good for plants? If you've ever lived in the desert you already know that answer. From dead and brown to brilliant green with wildflowers exploding come monsoon season. Do not assume because mine tests at 5.5-5.7 that your's does.
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Always check PPM, E.C and specific gravity of any source. And rain is deadly in most modernized locations and those down wind from them. Nature is pure. Man corrupts all.
 
DrOgkush

DrOgkush

Well-Known Member
hotrodharley said:
It's almost totally free of any solids. No minerals. pH can be 5.5 out the bucket. Is it good for plants? If you've ever lived in the desert you already know that answer. From dead and brown to brilliant green with wildflowers exploding come monsoon season. Do not assume because mine tests at 5.5-5.7 that your's does.
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Fuckin truth. Lol
 
Rurumo

Rurumo

Well-Known Member
When a good thunderstorm passes by, my outdoor plants look insanely good the next day. Lightning blasts through the nitrogen in the atmosphere and turns it into nitrates in the rain clouds, so you are basically getting RO water with pure mineral salts mixed in.
 
DrOgkush

DrOgkush

Well-Known Member
Like it was stated above. If you live in the desert and you’ve lived in drought your entire life. Rain water is heavenly. And can turn a dry arid desert into a jungle of weeds and shrubs ina matter of days. Iv seen the brown desert all green. (And all white) I also DO NOT use it as a base water. I use it for what it is. Rain water. It doesn’t rain all day everyday 365 days a year. So I use it once every other watering or so. I keep it bottled and in the dark. But I’m a believer plants respond to rain water in a positive way.
 
calvin.m16

calvin.m16

Well-Known Member
Reverse Osmosis is the best option but rain water should work? I don't know if I'd trust rain water for my medicine tho lol.. I don't even smoke outdoor due to the sprays and bugs/shit on it.
 
speedwell68

speedwell68

Well-Known Member
The wife has a wild patch in the garden that has nettles and comfrey for the very reason of making a general purpose feed. She feeds all of the flower beds with it.
 
DrOgkush

DrOgkush

Well-Known Member
calvin.m16 said:
Reverse Osmosis is the best option but rain water should work? I don't know if I'd trust rain water for my medicine tho lol.. I don't even smoke outdoor due to the sprays and bugs/shit on it.
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You don’t trust rain water? Where do you live? Big city downtown or by a volcano?
 
mudballs

mudballs

Well-Known Member
Just being near or downwind of a big city can have huge amounts of diesel soot in the rainwater. Go ask a marina boatguy where all those tiny black specks on his boat he's washing off came from. There's shit in the rainwater, it's not free of contamination anymore than standing next to a guy sneezing...quality of rainwater is directly connected to where you live. For any rainwater to reach levels bad for plants is very far off the scale of what can harm humans. Love me some rainwater in a buck that had leaves and twigs in it, free all natural fert tea right there.
 
DrOgkush

DrOgkush

Well-Known Member
mudballs said:
Just being near or downwind of a big city can have huge amounts of diesel soot in the rainwater. Go ask a marina boatguy where all those tiny black specks on his boat he's washing off came from. There's shit in the rainwater, it's not free of contamination anymore than standing next to a guy sneezing...quality of rainwater is directly connected to where you live. For any rainwater to reach levels bad for plants is very far off the scale of what can harm humans. Love me some rainwater in a buck that had leaves and twigs in it, free all natural fert tea right there.
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Iv tested the rain water in dtla, the antelope valley and high desert. Ph is the biggest difference.

That black shit on the boat in the marina is fouling or mold. Diesel soot has to to be fairly close.
 
Coolbreeze99

Coolbreeze99

Active Member
Rain water is great for plants! It contains NPK, calcium, magnesium, nitrates which us really easy for the plant to take in, and other trace minerals. I've had we plants that started to go south on me and rain water brings em back every time. I used to like growing in winter for the ease of climate control but i almost like spring/summer better because of the rain water i collect.
 
Coolbreeze99

Coolbreeze99

Active Member
mudballs said:
Just being near or downwind of a big city can have huge amounts of diesel soot in the rainwater. Go ask a marina boatguy where all those tiny black specks on his boat he's washing off came from. There's shit in the rainwater, it's not free of contamination anymore than standing next to a guy sneezing...quality of rainwater is directly connected to where you live. For any rainwater to reach levels bad for plants is very far off the scale of what can harm humans. Love me some rainwater in a buck that had leaves and twigs in it, free all natural fert tea right there.
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Any water will cause mold to grow on the side of boats ‍♂ if there's any soot, its from his own motor exhaust.
 
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