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Field grafting

kbguess
10 years ago

Stopped by my friend's place today to get some pictures of some field grafts he has done. These are on larger trees he has in his landscape.

Pinus flexilis 'South Park' grafted March 2011. Sluice sent scion, but we didn't have any rootstock of sufficient caliper, so he stuck a piece on a 10 foot species P. strobus

The same tree with bagged grafts from this winter

Pinus parviflora with graft from 2/2013

Bag off, can see new growth on scion

Keith

Comments (12)

  • jarpe
    10 years ago

    Interesting! Doesnôt bagged branch heat up in a sun. Is there also need for shade ? How tightly must the bag be closed and when can it be removed? I have struggled with field grafting myself and had some poor results in the past but this might be the key to success. I have dreamed that grafting into bigger plants in field might give scion tremendous root power and faster developement in size and appearance.

  • jarpe
    10 years ago

    This is my only field graft for this season that is still alive and showing some signs of new growth. Then again there is some brown tips that worry me.

  • barbaraincalif
    10 years ago

    Thanks for the field grafting photos Keith. I can imagine it's not much fun for your buddy to do winter grafting outdoors in your climate, but the results are fantastic (and fun)! You guys make grafting look so easy, while I'm lucky to get a 20% take.

    Jarpe has some good questions. I too have wondered if grafting onto larger stock plants (but in pots) would give the scion an extra boost, or devigorate the existing root mass as the rootstock's foliage is cut back? Too many variables!

    Barbara

  • sluice
    10 years ago

    Wow! The growth on South Park is incredible!

  • unprofessional
    10 years ago

    Please share more on this subject; it's something I've always been intrigued with.

  • kbguess
    Original Author
    10 years ago

    Jarpe, Barbara:

    The field grafts my friend has done haven't been in large enough numbers to have a reliable system established.

    He has a lot of shade in some areas of his yard. Personally, I would use white plastic to reduce heat build up. The two grafts with clear bags that I looked at the day I took pictures looked fine, but we haven't had too many sunny days this spring.

    I think that gradually opening the bottom of the bags to slowly decrease humidity is a good plan.

    As far as I know, he has only had success with five needle pines. He has tried on spruce several times without success yet. He tried fir as well (1 or 2 grafts)

    He grafts in late winter/early spring

    If I were going to experiment, I would try to harvest scion a couple of weeks before anticipated bud break on the rootstock and then graft as buds were beginning to expand on the rootstock.

    Sluice: I agree the SP growth is fantastic. It took us a while to figure out what we had on there because the tag was gone, but then I remembered what we'd done.

    Unpro: wish I could give you more info. I think the typical grafting methods are probably superior. Unless you are looking to modify something already in the ground this is not the preferred method.

    I did review a couple of Youtube videos with demonstrations of top grafts of pines. One is linked below.

    Keith

    Here is a link that might be useful: Field grafting loblolly pine

  • gardener365
    10 years ago

    Very killer. I think it would be wise, as well to bag them with white poly & also open the bags many times per day if one could do so... but success is success.... I gotta grant that to you guys.

    Dax

  • jarpe
    10 years ago

    I suddenly noticed a shoot of new growth pushing throw the binding material of (assumed dead) fieldgraft. It is not clear if it is from scion or not but it seems a little bit yellow. Grafted cultivar was ôkultasurukuusiô narrow golden spruce with weeping habit. On the backround a new shoot from the rootstock-plant.

  • jarpe
    10 years ago

    heres another one

  • jarpe
    10 years ago

    More signs of life. Only ones that havenôt been taken by silent one seem to be those that have almost total shade. Here an innovation for blocking sunlight from southern side. Made from childrens plasticfoam camping gear. Cultivar is `kuhmoisten kultaô. golden spruce.

  • jarpe
    10 years ago

    Closer look reveals the developing new growth.

  • kbguess
    Original Author
    10 years ago

    Congratulations on your successes

    Keith