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 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
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.
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...
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 :)
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!
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?
I use a small brush to clean smooth trunks, in combination with the anti-algea liquid: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ilNkzjh0mzo.html
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 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.
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'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
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)
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