Author Topic: Shimpaku Cuttings - when to start checking for roots?  (Read 2174 times)

somegeek

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Shimpaku Cuttings - when to start checking for roots?
« on: August 28, 2011, 07:42 PM »
I had some cuttings available so I'm trying my hand at rooting them.  How long should I wait to check for roots?  It's been two weeks and all twelve cuttings are still green.  I think I see some new growth.  I mist them a few times a day and had to water them after a week as the perlite they're in was nearly dried out.  They're under three 26w CFLs twelve hours a day in a room that is about 75ºF all the time.  I'd read that once they put roots out, you have a few weeks to get them into a soil mix.  Waiting patiently but anxious to see how things are looking below the perlite line.  :)

somegeek
 

Billkcmo

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Re: Shimpaku Cuttings - when to start checking for roots?
« Reply #1 on: August 29, 2011, 07:19 AM »
Wait several months.  A little tug on the cutting will let you know it has roots.  I have had good luck rooting junipers in turface.  Shimpaku's like lime so easy on peat.  Most any potting medium works if the drainage is good and you keep them watered. 
 

MatsuBonsai

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Re: Shimpaku Cuttings - when to start checking for roots?
« Reply #2 on: August 29, 2011, 08:57 AM »
I've had good success taking cuttings of kishu and itoigawa into bonsai soil and a cork-sized-hole of sand.  I just leave them for a year or more.  No tugging required, as that could damage those not ready to be tugged.
 

jtucker

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Re: Shimpaku Cuttings - when to start checking for roots?
« Reply #3 on: August 29, 2011, 10:35 PM »
I've also heard from quite a few folks that shimpaku cuttings can take up to a year or more to root well. I just put my cutting trays under my bench and keep em moist, but force myself not to play with them for a year. Even though some of last fall's pomegranate cuttings are growing up through the slats in my bench, I'm just leaving them for a while longer. Probably could have gotten away with potting some in the spring, but they are really happy now. I'm glad I waited!!!
 

Owen Reich

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Re: Shimpaku Cuttings - when to start checking for roots?
« Reply #4 on: August 30, 2011, 06:58 AM »
I don't know if I'd keep them inside.  Partial shade outdoors for a month or two would be better then move to almost full sun for fall.  Shimpaku generally root root well after 4 months in plug trays.  Keep misting the foliage and never let the media totally dry but keep slightly damp.  I'd leave them alone in terms of repotting until late spring then repot them so you can splay the roots out radially for good future nebari.  Waiting a year won't hurt.  I prefer to get them repotted earlier to avoid a tangle of roots to sort out.  There are multiple ways to get success.  If you have some Superthrive or HB101, I like to mist my cuttings with that from time to time (once or twice a week).