PT wood is perfectly safe to use in garden beds. Even if the micronized copper azole were to leech into your soil in any appreciable amount (it won't), you would notice long before it did you any harm because all your plants would die! Plants are far more sensitive to copper toxicity than humans.
Humans have been working with and using copper since the copper age starting around 5000bc, since then we have used this metal in everything including pennies, pots, buckets, water pipes, wires, toys, jewelry, roofs, and much more. It's also been used in gardens for decorative purposes and as an organic fungicide. Copper treated wood has been used extensively in decks, gardens and playgrounds since the early 2000s. It is also an essential mineral for both plants and humans. Like almost everything, too much copper exposure can be toxic. Yet with all this copper in our lives copper poisoning or copper toxicity in humans remains extremely rare. On the list of things to be worried about, copper poisoning from garden beds should be very low.
Nicely described. I built my beds with charred wood, I simply burned the surfaces with a gas torch. The test is still ongoing as it was 3 years ago I built them, but I think it is worth a try to avoid those nasty chemicals near you vegetables.
I used some so called 5/4 PT from HD less than 2 years ago. It rotted just the other day. What a mess as the bottom fell out in my screen room. I built a flower box 3 years ago from regular plywood I painted it and it's still doing fine.
I recently built a few beds with redwood 2x12s held together using dovetails and dowels so there are no screws to rust or pull out. The boards were $8/ft for full dimension 2x12s plus tax and a few dollars for oak dowels. It was not cheap, about $100 for a 2’ by 4’ bed but hopefully they hold up for many seasons and I can grow a lot of food in them. If they last for 10 years it’s only $10 per year which isn’t much more than buying plastic pots or other raised bed options. If they last 15-20 years the cost per year is almost nothing at that point. Quality pays for itself if you are planning on using them for the long term.
Thanks for watching! I will likely do a follow up video researching specific cases and health effects of each chemical (if any). Including all that in this video would have made it longer than I wanted. This video simply focused on the chemicals found in treated wood, the treatment processes, and warnings associated with the chemicals.
Hi thanks for watching! Unfortunately we moved to Tennessee shortly after planting those tomatoes, so I couldn’t make that video. Maybe I’ll have a chance this summer at the new place 😊
@tyson457 This is not true as a blanket statement. There is a very powerful insecticide called Talstar and the warning label says “fatal if swallowed”, but it does not kill plants.
They use copper to treat the wood instead of arsenic. If you don't wish to ingest copper particles, you should probably get your water from a stream... with a plastic bucket.
Perhaps a little more research on plant take-up of the chemicals involved instead of the process of how the wood is treated would be more helpful to gardeners. A simple search of published research found me this. The first is a quote from a paper out of Penn State extension and the second is a link to the paper. I think viewers will find what they need to know. I realize youtube is about getting clicks and catchy titles do that, but I appreciate content more..... Very few studies have analyzed plants grown in close proximity to CCA-treated wood. The Hickson Corporation, a manufacturer of CCA-treated wood, analyzed carrots, okra, peppers, cucumbers, and tomatoes grown in raised beds made with CCA-treated wood. They found that As, Cr, and Cu contents were in the same range as those of vegetables purchased at a grocery store or grown in raised beds made with untreated wood. Analysis of grapes grown adjacent to CCA-treated stakes showed no increase in As, Cr, or Cu.4 Romaine lettuce grown in pots with soil that contained small (approx. 1 inch) cubes of CCA-treated wood showed increased uptake of As such that a normal serving (50 g) would contain 0.004 mg of As.5 This compares to the normal dietary intake of 0.004-0.01 mg of inorganic As and the estimated safe intake level of 0.05 mg of inorganic As. The average adult would have to eat over 1.3 pounds of this romaine lettuce every day to exceed the estimated safe intake level of As. extension.psu.edu/environmental-soil-issues-garden-use-of-treated-lumber
😂😂😂" Unless you are throwing caution to the wind and drinking chemicals for breakfast"😂😂😂 Hilarious! Awesome video! Very informative. I was just thinking about pressure treated wood for raised beds myself. This came right on time.
I’d really appreciate if you provided a source talking about this so other viewers can see a different side. I know it’s a debated topic so I’m all ears 🙂
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Plastic leaches into the soil and causes the wood to rot much quicker. Much appreciated your care and time in making your video!
Great way to explain this. It’s dripping Thank you
PT wood is perfectly safe to use in garden beds. Even if the micronized copper azole were to leech into your soil in any appreciable amount (it won't), you would notice long before it did you any harm because all your plants would die! Plants are far more sensitive to copper toxicity than humans.
That makes sense. I’d stress more caution around commercial treatments than residential (i.e., railroad ties and PT pallet wood).
100% Correct !
Humans have been working with and using copper since the copper age starting around 5000bc, since then we have used this metal in everything including pennies, pots, buckets, water pipes, wires, toys, jewelry, roofs, and much more. It's also been used in gardens for decorative purposes and as an organic fungicide. Copper treated wood has been used extensively in decks, gardens and playgrounds since the early 2000s. It is also an essential mineral for both plants and humans. Like almost everything, too much copper exposure can be toxic. Yet with all this copper in our lives copper poisoning or copper toxicity in humans remains extremely rare. On the list of things to be worried about, copper poisoning from garden beds should be very low.
Thank you for all the in depth information! Appreciated!
Nicely described. I built my beds with charred wood, I simply burned the surfaces with a gas torch. The test is still ongoing as it was 3 years ago I built them, but I think it is worth a try to avoid those nasty chemicals near you vegetables.
That’s cool! How long would it take you to char a 2x4 board, for example?
I used some so called 5/4 PT from HD less than 2 years ago. It rotted just the other day. What a mess as the bottom fell out in my screen room. I built a flower box 3 years ago from regular plywood I painted it and it's still doing fine.
I recently built a few beds with redwood 2x12s held together using dovetails and dowels so there are no screws to rust or pull out. The boards were $8/ft for full dimension 2x12s plus tax and a few dollars for oak dowels. It was not cheap, about $100 for a 2’ by 4’ bed but hopefully they hold up for many seasons and I can grow a lot of food in them. If they last for 10 years it’s only $10 per year which isn’t much more than buying plastic pots or other raised bed options. If they last 15-20 years the cost per year is almost nothing at that point. Quality pays for itself if you are planning on using them for the long term.
That’s amazing! I bet they’re beautiful too. Hoping that they last a long time for you.
Did the arsenic in treated wood that was used for decades harm anyone?
Arsenic is found in rice.
Does this mean we should not eat rice?
Thanks for watching! I will likely do a follow up video researching specific cases and health effects of each chemical (if any). Including all that in this video would have made it longer than I wanted.
This video simply focused on the chemicals found in treated wood, the treatment processes, and warnings associated with the chemicals.
No Arsenic in residential pressure treated wood for just over 2 decades.
Hey! Where’s the update on using wood ash on your tomato plants?
Hi thanks for watching! Unfortunately we moved to Tennessee shortly after planting those tomatoes, so I couldn’t make that video. Maybe I’ll have a chance this summer at the new place 😊
Nicely edited! Regards from Baltimore.
It is 100% safe to use if not your plants would die.
@tyson457 This is not true as a blanket statement. There is a very powerful insecticide called Talstar and the warning label says “fatal if swallowed”, but it does not kill plants.
Thanks for watching! What are your opinions of using pressure treated wood for raised garden beds?
They use copper to treat the wood instead of arsenic. If you don't wish to ingest copper particles, you should probably get your water from a stream... with a plastic bucket.
For the residential treatments, sure. The ones I’m primarily trying to raise awareness of are the commercial treatments.
Perhaps a little more research on plant take-up of the chemicals involved instead of the process of how the wood is treated would be more helpful to gardeners. A simple search of published research found me this. The first is a quote from a paper out of Penn State extension and the second is a link to the paper. I think viewers will find what they need to know. I realize youtube is about getting clicks and catchy titles do that, but I appreciate content more.....
Very few studies have analyzed plants grown in close proximity to CCA-treated wood. The Hickson Corporation, a manufacturer of CCA-treated wood, analyzed carrots, okra, peppers, cucumbers, and tomatoes grown in raised beds made with CCA-treated wood. They found that As, Cr, and Cu contents were in the same range as those of vegetables purchased at a grocery store or grown in raised beds made with untreated wood. Analysis of grapes grown adjacent to CCA-treated stakes showed no increase in As, Cr, or Cu.4 Romaine lettuce grown in pots with soil that contained small (approx. 1 inch) cubes of CCA-treated wood showed increased uptake of As such that a normal serving (50 g) would contain 0.004 mg of As.5 This compares to the normal dietary intake of 0.004-0.01 mg of inorganic As and the estimated safe intake level of 0.05 mg of inorganic As. The average adult would have to eat over 1.3 pounds of this romaine lettuce every day to exceed the estimated safe intake level of As.
extension.psu.edu/environmental-soil-issues-garden-use-of-treated-lumber
Great information! Thanks for posting this article.
😂😂😂" Unless you are throwing caution to the wind and drinking chemicals for breakfast"😂😂😂 Hilarious! Awesome video! Very informative. I was just thinking about pressure treated wood for raised beds myself. This came right on time.
Glad you enjoyed, thanks for watching! 😂
Good vid man
Thank you for watching!
Use untreated cedar pickets
Cedar is certainly ideal! I’m too poor for that though 😂
Do More research...Modern Pressure treated is perfectly SAFE to use.
I’d really appreciate if you provided a source talking about this so other viewers can see a different side. I know it’s a debated topic so I’m all ears 🙂