Dav4
Drop Branch Murphy
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Please note that this is not a full on bare rooting re-pot but more of a root pruning and partial soil change... big difference between the two.
Please note that this is not a full on bare rooting re-pot but more of a root pruning and partial soil change... big difference between the two.
Leaves transpire because the rH of the air is less than 100%. The lower the rH the faster water is lost from the tree. Roots supply the water that leaves loose via transpiration. Root capacity to adsorb water is reduced/impaired. So logically, shaded during afternoon heat (when rH is lowest), dappled shade all day long, full shade, and if turgidity cannot be maintained into a humidity tent.I feel slightly bolder about summer repotting now. Do you think I can safely do it with a potbound trident maple? what kind of aftercare is needed?
I feel slightly bolder about summer repotting now. Do you think I can safely do it with a potbound trident maple? what kind of aftercare is needed?
hello, what is the best period to repot palmatum tree for you ?In the pot there should be minimum "pasive wood" and as much as possible "active" root hairs = storage of energy is limited there anyway. Trees in pots stores much more energy in the sections above pots. So there is enough energy for the growth after repot in the Spring, don't worry.
The intake of water by leaves is much lower in deciduous than in conifers. Deciduous tree without fiber/hair roots is just a piece of wood for fireplace. The level of root pruning in summer is affected by that much more than in the Spring.
One of the main factor affecting the growth of the roots is temperature of the soil/substrate. For most of the plants in our zone is the optimum temp 25-30°C. With temps close to 10 and below ie second half of Sept and in October the growth of the roots is slowing significantly.
The period from late August till end of Sept/mid October is the time of massive energy storage in vacuoles - secondary thickening. Redirecting the use of the energy from storage to growth of the roots will slowdown the development of a tree.
Do you always let a "rootball" while repotting this palm tree ?Why does this work so well and better than in spring? Because the tree has perfect conditions now to grow roots until the end of October. This is why now! Earlier is better than later to have more time for root growth. This is eight weeks and sufficient.
Do you always let a "rootball" while repotting this palm tree ?
ok !Sure, avoid cutting off too much.
The tree must get frost free over-wintering.
It's almost like you wanted to create some controversy before you gave the explanation.
Thanks for the explanation Walter. I think most people would have liked the explanation up front though. It's almost like you wanted to create some controversy before you gave the explanation. I think most people are confused because this new advice from you seems to conflict with advice you've given previously on your site. For example, these posts where you repotted the same tree in March and recommend April or May to be the best time for deciduous trees not in a greenhouse.
http://walter-pall-bonsai.blogspot.com/2007/03/reoptting-of-teh-big-maple-part-1.html
http://walter-pall-bonsai.blogspot.com/2009/03/repoting-of-huge-maple.html
Of course, peoples' knowledge changes in bonsai all the time, but you act as if we can read your mind.
I'm interested to know if you think that the same can be applied to collecting trees from the wild this time of year? I've had success collecting several species in August/September with foliage and submerging them in water for a week or two.
It like an early autumn repotting.. so i'm not sure it is a revolution His tree has time to make new roots. Pines can be collected in this period because the temperatures start to go downHe did.
It like an early autumn repotting.. so i'm not sure it is a revolution His tree has time to make new roots. Pines can be collected in this period because the temperatures start to go down
late summer if you prefer.. The T° are decreasing in my country and the duration of day decreases seriously too.. i have a liquidambar in my garden (in the ground) that stats to have his autumn colors (beautifull red)Early autumn is a month away.
I prefer to repot these in late spring. But maybe it works now.@Walter Pall would you repot a plam tree now if this tree is still growing shoots ?