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Questions on potting a pine tree

10 years ago

So I have a Japanese white pine 'glauca nana' which matures to about 10 feet. I would like to pot it up because I have no space in my yard to plant it. I've researched these online but all the information varied and I would like to know your personal experience with potting conifers. So here are my questions.

1) Would a dwarf pine tree that only matures to 10 feet be an ideal size for potting?

2)Can I keep the pine tree in the pot forever? Will I ever have to eventually plant it in the ground?(I prefer not too plant it in the ground)

3)Can I just use regular potting mix or is there a specific mix I need to be using for this?

4)Can I keep this potted pine outdoors all year long? My zone is 7a in northern NJ.

5)Will potting a tree restrict/slow down its growth rate?


Comments (7)

  • 10 years ago

    trees never stop growing.. all estimates in conifers is at ten years.. expect double in 20 years ...


    1 no ... unless the pot is yard sized

    2 no .. it will have to constantly be up potted ...

    3 no .. too much retained water ...

    4 probably

    5 only the transplanting itself ....


    riddle me this batman ... if you dont have the soil space to plant it.. where are you putting the pot ... i probably know the answer .. lol ..


    ken



  • 10 years ago

    So you are saying I shouldn't be potting this tree up? And I'm going to put the pot on my front door steps. And what do you mean up potted, like keep pulling the plant up so it doesn't sink on the bottom of the pot??

  • 10 years ago

    I would think potted up means a bigger pot as it keeps growing.

  • 10 years ago

    You can root and limb prune it and keep it in that pot forever. Think bonsai. But it will be a lot of work, as I noted on the other thread. I have some Picea p. 'Sester Dwarf' that I've had in the same pots for 5-6 years and they grow much more slowly than they would in the ground. I don't fertilize them, although at some point I'm going to have to either root prune them or plant them in the ground. I wouldn't pick your specimen for a potted conifer, due to its growth rate, but if you feel like playing around and having some fun with it, have at it. You'll have to make sure that you can leave it in the pot all winter; some people put the pots on dollies and move them into garages or under eaves in cold weather.

  • 10 years ago

    It will need a lot of sun. What direction do your front steps face?

    Mike

  • 10 years ago

    I grow ALL my conifers in containers and some of them have been
    around for more than 10 years. Container culture is much like growing
    bonsai as Sara notes, but on a much larger scale. Yes, it slows and
    dwarfs the growth of the plant
    but is a very manageable practice as long as you familiarize yourself
    with the requirements of growing in containers long term. I'd suggest
    you review the attached link on growing trees in containers for some excellent advice.

    You
    do need a high quality, very durable potting medium, something like the
    5-1-1 or gritty mix described in detail on the Container Gardening
    forum. "Up potting" refers to the practice of moving the plant into a larger sized container periodically
    as it grows and the roots fill the current container. And root pruning
    will be a requirement if you intend this to be a more or less permanent
    situation. And yes, the tree can be left outdoors on a year round basis in your zone.

  • 10 years ago

    Wow that is a lot of work just to pot a tree.... I'll take a look at it but now I'm not even sure if I want to do this. But thanks for all the help!