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Araucaria cunninghamii - Hoop Pine
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Posted by magalhaes z6 NY (jmagnas@aol.com) on Tue, Jun 21, 05 at 10:48
| I just bought 6 seeds of the Araucaria cunninghamii here in New York City, and I would like to know what the planting procedure for its germination is, regarding depth of seed in soil, scarification (if needed), optimum soil temperature and watering.
Also, can someone tell me precisely what the hardiness zone is for this tree?
I have already in my collection the Araucarias araucana, angustifolia, bidwilii and heterophyla.
Thank you
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Follow-Up Postings:
RE: Araucaria cunninghamii - Hoop Pine
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- Posted by pos02 NSW Aust (My Page) on
Wed, Jun 22, 05 at 18:51
| Wouldn't know about planting seeds, but I can tell you that they are from tropical/subtropical Queensland not sure how they will go in NY, but they are planted all around Australia, so you might be lucky. You might want to read up on them. |
RE: Araucaria cunninghamii - Hoop Pine
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| Go back 10 or so postings on this forum and you'll find extensive discussion of climatic tolerance. Can't advise on germination, but would guess it's fairly straightforward if seed is good. |
RE: Araucaria cunninghamii - Hoop Pine
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| On the subject of germination, I just thought to dip into a book I own, 'Seeds of woody plants in North America' by Young & Young, revised edition, Dioscorides Press 1992. It has a ton of information about Araucaria seed. You should try to find it in a library, but just in case you can't it includes the following points: 1. viability is generally short-lived, but A. cunninghamii is the species that best tolerates desiccation of seeds, viable at moisture content down to 2% whereas some other spp. won't survive desiccation below 25%, with an intermediate group of spp. not below 12%. Cool storage prolongs seed life. 2. no pre-treatment is required. "Under suitable moisture and temperature conditions (20 to 30 deg C), germination may begin about 10 days after sowing." I suspect the most important question is, how good is your seed, and is it sufficiently fresh? |
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