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Tropaeolum Azureum 'Blue Nasturtium'
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Posted by christie_sw_mo Z6 (My Page) on Sun, Feb 7, 10 at 9:24
Any experience with Blue Nasturtium?
So far I've found that if I lived in Chile, I should sow them in deep pots outside in the fall.
I haven't been able to find whether it's ok to let the seeds freeze. A couple things I read sounded like I need to keep the seeds frost-free but it wasn't clear. I do know they need a cold period to germinate.
There were only five seeds in my seed packet. The directions on the packet say to sow in pots, then put pots in the frig for two months. I don't have room in my frig for that. lol I'm hoping I can winter sow them and that I haven't waited too long.
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Follow-Up Postings:
RE: Tropaeolum Azureum 'Blue Nasturtium'
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| I am assuming that if you are supposed to sow them and stick them in the frig then they SHOULD be okay to wintersow. How different are they from the other nasties? If they look the same then I would treat them the same. I sow mine at the end of March with no problems. |
RE: Tropaeolum Azureum 'Blue Nasturtium'
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- Posted by morz8 Z8 Wa coast (My Page) on
Sun, Feb 7, 10 at 12:12
| christie, I grow t. speciosum in my mild 8b, not t. azureum, but my guess is that seeds for this tender perennial vine would not like extended hard freezing. The vine won't be hardy in a Z6 and like many perennials, an odd bloom or two the first year is possible but not likely...should produce flowers second year but it would need to be established into its third year to make its best showing. |
RE: Tropaeolum Azureum 'Blue Nasturtium'
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| I've seen that nasturtium (online) and it is really beautiful! I have some nasturtium seeds, and I was going to wait and direct sow them in spring. I think I read somewhere that they don't like to be transplanted. |
RE: Tropaeolum Azureum 'Blue Nasturtium'
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| This is a great example of a tender perennial. Tender, meaning that it won't tolerate heavy cold. It's hardy to zone 9, which is about 20*F for the lowest temperature. Knowing that, you wouldn't want to subject the seeds to any lower temperatures than 20*F which is why most information says to sow the seeds in the fridge for 2 months. They do need some cold to germinate, but again, probably not subfreezing, at least not for more than a few days. Even in my zone, this would need to be grown in a container and kept inside over the winter. So while a perennial, it's not what we think of as perennials. |
RE: Tropaeolum Azureum 'Blue Nasturtium'
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Thanks for your replies.
I think they're going to be challenging to grow from seed but the photos I've looked up are all so pretty. In every picture, they look like they're just loaded with blooms. We still have nights going down into the low teens. Maybe I should put the seeds in a baggie of moist peat in the frig for a few weeks then winter sow into pots. I don't think they'll bloom the first year. I'll have to put them in my garage or basement over winter and hope they bloom the next year.
It's interesting that the leaves are lobed very different from the other nasturtiums that I've grown. |
RE: Tropaeolum Azureum 'Blue Nasturtium'
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| I believe that the first year plants form tubers that can be overwintered. |
RE: Tropaeolum Azureum 'Blue Nasturtium'
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| I spring sowed these last year. I believe I had 4-6 seeds. One germinated by the end of July. It grew about three inches and was about as thick as a cat hair. I got mine from Jung's or ?? that is owned by the same company. After doing further research, these are best grown in a greenhouse/hothouse environment because they can take several months to germinate and they are so tender. I think I read on Dave's Garden up to nine months for germination? They are beautiful, but I'm not up for their challenge. I hope you can get some sprouts! cheers,
Norabelle |
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