Larch question

Tamarack, the Eastern Larch, larix larcina, is a lowland tree of damp footing that hates hot and hates high humidity. In Michigan, its native southern reach is about the city of Midland. The further south from about that lattitude, 43.6°N, the more problematic they become. I know very good bonsaiists in northern Indiana that have given up. I don't know anything about the Western Larch, but I believe it's very different.

I ordered two Japanese Larch seedlings from OR recently. I’m just north of Indy so I can let you know how they do in the Hoosier state. 😂 Challenge accepted.

Unfortunately, I’m in the hole with health bc the 6 day package was lost. They arrived in bad shape cooped up in the box as they are sun loving but showing sprouts of regrowth.
 

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Put them in the ground in full sun and see what they look like in spring.
 
I ordered two Japanese Larch seedlings from OR recently. I’m just north of Indy so I can let you know how they do in the Hoosier state. 😂 Challenge accepted.

Unfortunately, I’m in the hole with health bc the 6 day package was lost. They arrived in bad shape cooped up in the box as they are sun loving but showing sprouts of regrowth.
In the current condition I would keep them in the current pots, maintain care and full sun! If you wish to grow them out then I would repot after they have returned to health. The size of the current container is fine and I think it is better to not disturb or weaken the roots at this time. Plenty of time to put them in the ground or larger pots this spring. New growth at this time will use reserves from the roots with so little foliage, best to let them strengthen without further disruption. If still in the containers it is easier to give them some early frost protection and allow them to strengthen even further before dormancy.
 
The winters in Indy make Vancouver look like a vacationland. The roots will be more protected in a sunken pot than any other method of wintering over. Any time a plant is in a stressed situation, sinking the pot is the safest bet. The canopy doesn't need any extra care.
 
Not in any way reliable enough to count on. Back-budding is very rare on larch.

Do you have any Larch? Mine are super healthy and will bud back regularly. I don’t rely on them, but it happens often.
 
Japanese larch are quite cold hardy and typically not an issue for protection. The exception is when the tree warms up early and produces foliage just before a cold snap or desiccating winds. In this case the seedlings are producing new foliage just before frost. That is why and the only reason why I suggested a more cautious approach.
For this year only I would take extra care. You might dig in to the ground beside a foundation or keep in a greenhouse that is cool enough to allow proper dormancy once the seedlings have recovered. There are many options to protect weakened plants.
 
Japanese larch are quite cold hardy and typically not an issue for protection. The exception is when the tree warms up early and produces foliage just before a cold snap or desiccating winds. In this case the seedlings are producing new foliage just before frost. That is why and the only reason why I suggested a more cautious approach.
For this year only I would take extra care. You might dig in to the ground beside a foundation or keep in a greenhouse that is cool enough to allow proper dormancy once the seedlings have recovered. There are many options to protect weakened plants.

That is my worry. These guys are putting so much energy into putting growth that they won’t have enough strength before winter. And they are just right around the corner from dropping their needles. I have to remind myself they are deciduous.

I do have an enclosed patio that can shield elements yet could keep a temp for dormancy.

They are in quart root pruning pots.
 
Do you have any Larch? Mine are super healthy and will bud back regularly. I don’t rely on them, but it happens often.
I have 2 larch solitaries, and 2 larch forests. In total about 20-something trees.
I still have to find the first young growth on barked-up branches or the trunk. Must be doing something wrong.
Full sun, open substrate, daily watering.
 
I have 2 larch solitaries, and 2 larch forests. In total about 20-something trees.
I still have to find the first young growth on barked-up branches or the trunk. Must be doing something wrong.
Full sun, open substrate, daily watering.


What do use for fertilizer?
 
I used Miracle Grow @ 30-10-10 early and 24-8-16 later on every two weeks this year and got more growth/bud back on my Lodgepoles and Larch than I have ever had before. Crazy bud backs and seemingly a second flush on Lodgepole bud backs too.
 
I have 2 larch solitaries, and 2 larch forests. In total about 20-something trees.
I still have to find the first young growth on barked-up branches or the trunk. Must be doing something wrong.
Full sun, open substrate, daily watering.

Mine are in root pouches allowed to grow a lot more vs final pots. Feeding and growth may have something to do with it.
 
Some factors to consider! length of time Larch have been planted. ( ie: root condition) Is the tree established and healthy?
Nitrogen level of fertilizer can have an impact on back budding. ( try something in the 14 -16 range )
How often the Larch are pruned and thinned. ( timing for response ) ( shading )
Healthy larch will back bud under the right conditions.

For example the pinching back of the initial growth repeatedly throughout the growing season allows more light which in turn promotes more back budding. At the same time reducing needle size. Allowing the initial growth to extend and harden off creates fuller foliage and more shading. balancing the refinement steps with growth objectives is important.
Propensity to back bud can be affected by a variety of factors besides water and sun.
Just throwing out some ideas for consideration, everyone has their own approach to these things!

I think it is important to remember that before expecting response from Bonsai techniques the tree must first be in good health with a vigorous root system. Many common care routines, substrates etc. keep trees alive but not in optimum condition.
 
Mine are in root pouches allowed to grow a lot more vs final pots. Feeding and growth may have something to do with it.

Can you show me a picture of your "root pouches" pls. Thanks!
 
I still wonder whether there is a species effect here too. It is fairly common advice here to keep all growth near the trunk on larch as they do not backbud..
 
I still wonder whether there is a species effect here too. It is fairly common advice here to keep all growth near the trunk on larch as they do not backbud..

There could be a difference but unlikely. If I can get my hands on some Japanese Larch, I'd be willing to test it out. I only have native Larch.. Tamarack
 
Can you show me a picture of your "root pouches" pls. Thanks!

Root Pouch and 12oz can for scale. This tree was heavily trimmed last year for cuttings. Allowed to grow crazy this year with a air-layer applied that will probably be removed next spring.
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