Propagation forum: Bauhinia blakeana 'Hong Kong Orchid Tree' ....air layering, cuttings?

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Name: Cal McGaugh
Escondido, California (Zone 9b)
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EscondidoCal
Jul 27, 2017 2:00 AM CST
What is the best way to propagate a Bauhinia blakeana. including
rooting medium and root stimulating compound, i.e. powder, gel, liquid?

I just purchased 2 young ones, and don't want to waste any
potential new starts when I trim them to shape them.



Name: greene
Savannah, GA (Sunset 28) (Zone 8b)
Million Pollinator Garden Challenge Garden Ideas: Master Level Region: Georgia Plant Identifier Garden Sages Native Plants and Wildflowers
Critters Allowed Composter Rabbit Keeper Herbs Region: United States of America Dog Lover
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greene
Aug 12, 2017 4:21 PM CST
I have never grown or propagated this plant but found a good article. Look at 2.1 Cuttings.
http://www.scielo.br/scielo.ph...

I do most of my cuttings in a Forsyth Pot using Vermiculite and the above article says that Vermiculite gives good results.
Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~~"Leaf of Faith"
Name: Cal McGaugh
Escondido, California (Zone 9b)
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EscondidoCal
Aug 13, 2017 2:13 AM CST
Hi Greene,
Thanks for the reference and tips!
I skimmed through the data, and think this is the most important to know:
The species that originated B. x blakeana and the hybrid itself are deciduous plants, so they lose their leaves during winter that, in the Southern Hemisphere, happens from June to September. These plants then restart their vegetative growth at the end of this period which, according to Hartmann et al. (2002), would be the ideal time for the cuttings of deciduous species...

The Bauhinia x blakeana hybrid can be propagated by semi-woody cuttings collected in spring, without IBA application, or in summer, with the application of 3,000 mg L-1 of IBA. Cuttings collected in autumn or winter showed very low survival and rooting rates, regardless the IBA concentration, and were considered impracticable for the multiplication of this species.

I'll try some cuttings, and layering now, though new growth in Spring sounds like the best time with no IBA necessary. IBA only marginally
helps in Summer.
I didn't know about a Forsythe Pot, but will try it out. I'll use perlite & peatmoss (5:1) that I have already mixed.

Very helpful! Thumbs up

ps-will report results in 2 months.
Name: greene
Savannah, GA (Sunset 28) (Zone 8b)
Million Pollinator Garden Challenge Garden Ideas: Master Level Region: Georgia Plant Identifier Garden Sages Native Plants and Wildflowers
Critters Allowed Composter Rabbit Keeper Herbs Region: United States of America Dog Lover
Image
greene
Aug 13, 2017 10:57 AM CST
Perlite does not hold water and peat moss is difficult to re-wet once it dries out. Please consider trying the Vermiculite, straight Vermiculite. I think you will be pleased with the results.

Please add photos so we can see the progress. Thumbs up
Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~~"Leaf of Faith"
Name: Cal McGaugh
Escondido, California (Zone 9b)
Image
EscondidoCal
Aug 13, 2017 11:07 AM CST
greene said:Perlite does not hold water and peat moss is difficult to re-wet once it dries out. Please consider trying the Vermiculite, straight Vermiculite. I think you will be pleased with the results.

Please add photos so we can see the progress. Thumbs up

I'll get a small bag of vermiculite and try it side-by-side and see whatever works best. Smiling

Name: greene
Savannah, GA (Sunset 28) (Zone 8b)
Million Pollinator Garden Challenge Garden Ideas: Master Level Region: Georgia Plant Identifier Garden Sages Native Plants and Wildflowers
Critters Allowed Composter Rabbit Keeper Herbs Region: United States of America Dog Lover
Image
greene
Aug 13, 2017 11:23 AM CST
Good idea. Thumbs up
I started with just one bag; now I buy the huge bags. If you can find the horticultural type medium or coarse grade of Vermiculite it is better than the fine/small grade, but sometimes we have to buy whatever is available locally.

In some other countries where Vermiculite is not readily available they use rice hulls or coco fibers in the same way.

Here is a good link to show the Forsyth Pot method.
https://www.extension.umn.edu/...
Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~~"Leaf of Faith"
Name: Cal McGaugh
Escondido, California (Zone 9b)
Image
EscondidoCal
Aug 13, 2017 1:36 PM CST
Amazon has lots of choices for vermiculite.

I also have coco fiber......will add that to the trial. Smiling

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