I think the only thing I would add is that I do greenhouse all of my mame sized trees and the chinese elms. Mostly stuff just gets grouped together in corners of the garden where they are protected from wind. Nicely presented Jelle
Mine is based purely on bad experiences in the earlier years. I have the space so do it naturally now. I'm probably a bit over protective now :)@@GrowingBonsai
All very informative. I've often wondered about a winter wash for my fruit trees too. So will make a big batch of the oil solution. I only have 4 trees in pots but around 70 young trees in grow beds down my allotment. Shouldn't take too long to spray 70 sticks though 😊
I'm jealous! I'm still trying to master overwintering. Your information matches what I have recently learned from the tree farm here. We have a commercial grower. They grow from seed. Mostly Black and white spruce to tree planters doing reforestation. The first year seedlings in plugs are packed up in Styrofoam boxes and packed into cold storage. They overwinter their trees at a steady -5C. I am going to try their methods this year. They said for me, with my one year seedling to take them into the house. They become cold hardy at year three in a pot. In the ground at their second year, they are cold hardy once the roots reach a certain depth. I had the most trees survive last winter. Likely just luck as it was a mild winter. -20C here in winter is only for short periods. Except last winter! But normally we stay in the -30s with minimum 2 weeks, up to 6 weeks in the -40s Celsius. Fall is late this year. Still no snow.... It is due this week. Late season!
@@GrowingBonsai Dress in many layers or stay in bed Haha! Actually, it is pretty dry usually at those temperatures. You feel it when you breathe in. It will freeze the inside of your nose. You can get burn on your skin. You can not touch metal with bare skin as it will burn your hand the same as heat. Sometimes work is cancelled because, even when plugged in/Wabasto on, the trucks and machines won't start. The oil is too cold and thick. School is also cancelled at those temperatures. So the kids are not standing outside waiting for the bus. If the bus even starts. It's good to have a period of cold like this as it kills the bugs, like ticks, mosquitoes, invasive insects etc. That can survive a mild winter like we had last winter. This past summer, we could not enjoy the outdoors because the biting insects were so bad. So numerous...
It's my second winter with this hobby. Last winter I just brought all the trees inside on a window sill. Now there's too many trees to fit inside. I live in Finland so I'm worried if we have a cold winter, will they survive. I bought a mini greenhouse from Lidl layed it sideways on the ground and put my trees in there. I filled the floor with pine needles between the pots and covered the soil/needles with aluminium foil to further insulate from the air. After watching this video I got worried because the whole thing is an a direct sun light. I thought it would be a good thing to have at least some of the light of the short nordic winter days.
DIrect sun is really an issue in small enclosed areas. My greenhouse gets into the 20c on frosty, sunny days.. But yeah, when it gets colder than -10 for longer periods of time, some more protection is needed. Note, if you have lots of snow, allow your trees to receive a blanket which will go a long way in protecting the tree.
@@GrowingBonsai Ok, thank you. I'll let the snow pile up on it and if we don't get enough snow until the colder temperatures hit, I'll cover it a bit with something. Next year I'll place it in sahdier spot.
9:40 It says "avoid winter oil on conifers" on screen, but you then you say you can spray but protect them from heat/sun. So, oil can be used against insects without problem, if the trees are then protected? Or what's the better option then? Not using oil but only the Lime Sulfur? Thank you for the informative video!
Hi Jelle, tx for the reminder to spray, don´t you protect the roots when spraying ? Either for the oily stuff or for the lime sulfur ? Protection against runoffs or droplets falling on the soil...
Great info and well timed! Glad to know that junipers can be sprayed with lime sulfur - I've wanted to try, but have been afraid. Do you use lime sulfur or dormant oil on broad leaf evergreens? What species would you avoid treating?
Good morning Joelle, thank you for the reminder to spray for pests before winter. Besides bugs, have you ever had problems with mice, voles, rabbits nibbling bonsai twigs over winter? I've had to surround certain trees with barriers.
I have had the problem one winter, when I stored trees in a shed. But we get very little snow, which allows for our cats and dogs to sanitize between the trees :)
I'm growing on a balcony, southern faced, which has got sides, a roof and a front (obviously) so wind isnt really an issue. How would you over winter i this case? Ive got most of my trees in pond baskets/net pots
Good morning Jelle...another question...if i have a jew and want to spray with the lime sulfur solution, should I also spray te needles? Same for Junipers? Thanks for your answer :)
Yes. I know some growers in Japan just make a big bucket and dip the crown of the tree in, and allow the tree to dry upside down (To avoid rootbal soaking with the stuff).
I hear that more often. I prefer to have the tree actively growing when making larger cuts, as the tree can only then respond to the cut and compartmentalize. Note that reserves are stored in all woody parts of the tree. Roots is only part of it.
Hi Jelle! I have a question about wintering trees on my balcony. My balcony is very well sheltered from the wind, which helps, but I'm concerned about the temperatures. Most of the time, it stays just a few degrees below zero Celsius, but occasionally it drops below -10°C for a few days. I'm especially worried about the roots. When trees are on the ground, they get some warmth from the earth, which helps protect the roots. But on the balcony, there's no natural heat source, and I feel that any insulation I add only slightly slows down the freezing process. Do you think I should invest in something like a plastic tunnel and a heat source or a heating mat?
Tricky! I think I would slide them against the wall of the house, and place some cover over them, using the heat coming from the wall to keep them warmer. .
The only lime sulphur I can find is 29% solution for treating horses. Could this be used as overwinter treatment of trees? If so, how much further to dilute it?
Absolutely! I think I used the term mediteranean too loosely. In my perspective I try to refer to species that are not purely tropical, but are certainly not temperate!
hi mate are you familliar with pot makers?? i have a hand painted one and it has an artists insignia above the illustration.. was thinking maybe you could have a look please :)
@@GrowingBonsai thank you for your answers...but what if they are outside like mines...in southtirol It often does not rain for nearly a month in Winter (especially in january and february)...when should I water them considering the soil often is frosty....
@@marcovalsesia2020 check with local people. Typicall, if burried in snow all is ok. Drying out by sun is the biggest risk when frozen and should be avoided.
My olives are outside, untill after a few nights of frost. AFter that, it will be in an unheated garage for frost periods. Our winters are mild (USDA 7a)
A very nice overview of winter season needs or recommendations for overwintering you bonsai. Very appropriate in fall. Thank you.
Thank you much Jeff!
I think the only thing I would add is that I do greenhouse all of my mame sized trees and the chinese elms. Mostly stuff just gets grouped together in corners of the garden where they are protected from wind. Nicely presented Jelle
Nice addition. I do not bother tbh with greenhouse for smaller trees. In the end, they are still trees :)
Mine is based purely on bad experiences in the earlier years. I have the space so do it naturally now. I'm probably a bit over protective now :)@@GrowingBonsai
All very informative. I've often wondered about a winter wash for my fruit trees too. So will make a big batch of the oil solution.
I only have 4 trees in pots but around 70 young trees in grow beds down my allotment.
Shouldn't take too long to spray 70 sticks though 😊
:) Have fun!
Great video Jelle 🙏
Thank you 🙌
Thanks Jelle, we love you
Ohw thanks Gavin!
How do you clean the algie before winter? I have alot thus fall.
I use a small brush to clean smooth trunks, in combination with the anti-algea liquid: th-cam.com/video/ilNkzjh0mzo/w-d-xo.html
ESP….I literally just watched your previous video on this topic. Perfect timing. Thanks, keep growing
Great timing! I hope I did not contradict myself too much!
beautiful space and trees, thanks for sharing 🙏
Thanks for visiting
Wow Wonderful Bonsai ~
Thank you for good sharing LIKE 261
My friend, have a good relationship 😊
Thank you too
I'm jealous! I'm still trying to master overwintering. Your information matches what I have recently learned from the tree farm here. We have a commercial grower. They grow from seed. Mostly Black and white spruce to tree planters doing reforestation. The first year seedlings in plugs are packed up in Styrofoam boxes and packed into cold storage. They overwinter their trees at a steady -5C. I am going to try their methods this year. They said for me, with my one year seedling to take them into the house. They become cold hardy at year three in a pot. In the ground at their second year, they are cold hardy once the roots reach a certain depth. I had the most trees survive last winter. Likely just luck as it was a mild winter. -20C here in winter is only for short periods. Except last winter! But normally we stay in the -30s with minimum 2 weeks, up to 6 weeks in the -40s Celsius. Fall is late this year. Still no snow.... It is due this week. Late season!
That is cold! How do you handle the -40?
@@GrowingBonsai Dress in many layers or stay in bed Haha! Actually, it is pretty dry usually at those temperatures. You feel it when you breathe in. It will freeze the inside of your nose. You can get burn on your skin. You can not touch metal with bare skin as it will burn your hand the same as heat. Sometimes work is cancelled because, even when plugged in/Wabasto on, the trucks and machines won't start. The oil is too cold and thick. School is also cancelled at those temperatures. So the kids are not standing outside waiting for the bus. If the bus even starts. It's good to have a period of cold like this as it kills the bugs, like ticks, mosquitoes, invasive insects etc. That can survive a mild winter like we had last winter. This past summer, we could not enjoy the outdoors because the biting insects were so bad. So numerous...
It's my second winter with this hobby. Last winter I just brought all the trees inside on a window sill. Now there's too many trees to fit inside. I live in Finland so I'm worried if we have a cold winter, will they survive. I bought a mini greenhouse from Lidl layed it sideways on the ground and put my trees in there. I filled the floor with pine needles between the pots and covered the soil/needles with aluminium foil to further insulate from the air. After watching this video I got worried because the whole thing is an a direct sun light. I thought it would be a good thing to have at least some of the light of the short nordic winter days.
DIrect sun is really an issue in small enclosed areas. My greenhouse gets into the 20c on frosty, sunny days.. But yeah, when it gets colder than -10 for longer periods of time, some more protection is needed. Note, if you have lots of snow, allow your trees to receive a blanket which will go a long way in protecting the tree.
@@GrowingBonsai Ok, thank you. I'll let the snow pile up on it and if we don't get enough snow until the colder temperatures hit, I'll cover it a bit with something. Next year I'll place it in sahdier spot.
Cheers from Ojai California
Greetings from Munsterland, Germany!
Le sujet est intéressant, merci pour la vidéo!
You're very welcome!
9:40 It says "avoid winter oil on conifers" on screen, but you then you say you can spray but protect them from heat/sun. So, oil can be used against insects without problem, if the trees are then protected? Or what's the better option then? Not using oil but only the Lime Sulfur? Thank you for the informative video!
It is mostly tricky in warmer, drier conditions.
very informative again...thanks. What about watering? do you still water the trees in winter?
Sometimes. But most f the time it is very wet here. But trees in a shelter do need water when the substrate gets dry.
Thank You.
You're welcome
Hi Jelle, tx for the reminder to spray, don´t you protect the roots when spraying ? Either for the oily stuff or for the lime sulfur ? Protection against runoffs or droplets falling on the soil...
I do not, no. But the drip-off is minimal, normally.
Great info and well timed! Glad to know that junipers can be sprayed with lime sulfur - I've wanted to try, but have been afraid. Do you use lime sulfur or dormant oil on broad leaf evergreens? What species would you avoid treating?
Glad it was helpful! I have seen videos of growers in Japan, where they do a lime-sulfur dip on junipers!
Good morning Joelle, thank you for the reminder to spray for pests before winter. Besides bugs, have you ever had problems with mice, voles, rabbits nibbling bonsai twigs over winter? I've had to surround certain trees with barriers.
I have had the problem one winter, when I stored trees in a shed. But we get very little snow, which allows for our cats and dogs to sanitize between the trees :)
Hi Jelle, very nice video and thank you for your advices!
Can all tree species be treated with lime sulfur? Greetings
I have not come across species that should not be sprayed with it. Just do not combine it with an oil spray.
I'm growing on a balcony, southern faced, which has got sides, a roof and a front (obviously) so wind isnt really an issue.
How would you over winter i this case? Ive got most of my trees in pond baskets/net pots
Depends a lot on winter weather though!
Good morning Jelle...another question...if i have a jew and want to spray with the lime sulfur solution, should I also spray te needles? Same for Junipers?
Thanks for your answer :)
Yes. I know some growers in Japan just make a big bucket and dip the crown of the tree in, and allow the tree to dry upside down (To avoid rootbal soaking with the stuff).
Hi Jelle, why you don’t cut the sacrifice branch while the tree is fully dormant? It is not better as the energy is stored in the roots?
I hear that more often. I prefer to have the tree actively growing when making larger cuts, as the tree can only then respond to the cut and compartmentalize. Note that reserves are stored in all woody parts of the tree. Roots is only part of it.
@@GrowingBonsai thanks for the answer. Have a nice day!
Great video as always ! About the lime sulfur winter wash, is it damageable on the roots if it drips into the soil?
It is something to be avoided as much as possible. But a drip here and there is no problem. Just do not go and drench the soil
Hi Jelle! I have a question about wintering trees on my balcony. My balcony is very well sheltered from the wind, which helps, but I'm concerned about the temperatures. Most of the time, it stays just a few degrees below zero Celsius, but occasionally it drops below -10°C for a few days. I'm especially worried about the roots. When trees are on the ground, they get some warmth from the earth, which helps protect the roots. But on the balcony, there's no natural heat source, and I feel that any insulation I add only slightly slows down the freezing process. Do you think I should invest in something like a plastic tunnel and a heat source or a heating mat?
Tricky! I think I would slide them against the wall of the house, and place some cover over them, using the heat coming from the wall to keep them warmer.
.
@@GrowingBonsai Thank you!
The only lime sulphur I can find is 29% solution for treating horses. Could this be used as overwinter treatment of trees? If so, how much further to dilute it?
I have heard about this animal dip. I have never seen it here. I would go with the same dilution: The "pure" stuff is also a solution
Great video! Bougainvillea is native to Brazil though, not a mediterranean species.
Absolutely! I think I used the term mediteranean too loosely. In my perspective I try to refer to species that are not purely tropical, but are certainly not temperate!
hi mate are you familliar with pot makers?? i have a hand painted one and it has an artists insignia above the illustration.. was thinking maybe you could have a look please :)
look better next time. This is there, but it is a semi-private store.
one question, how often do you water a bonsai in winter?
My trees stay outside and we have rain pretty much every day, so between early October and March I normally do not water them. THey never go dry here.
@@GrowingBonsai thank you for your answers...but what if they are outside like mines...in southtirol It often does not rain for nearly a month in Winter (especially in january and february)...when should I water them considering the soil often is frosty....
@@marcovalsesia2020 check with local people. Typicall, if burried in snow all is ok. Drying out by sun is the biggest risk when frozen and should be avoided.
This brings up a question. How much are we supposed to water the trees during winter?
They should never fully dry out.
👍👑🙂
:)
Do you keep your olive trees inside?
My olives are outside, untill after a few nights of frost. AFter that, it will be in an unheated garage for frost periods. Our winters are mild (USDA 7a)
A nice easygoing, uncomplicated yet informative video. That’s ‘my’ Jelle ! God bless you🙏✝️. ✌️🇷🇺☮️🇺🇦✌️. ✌️🤍🇮🇱🤍✌️
Glad it was helpful! Glad to see you still around!