Scottish Rock Garden Club Forum
Bulbs => Bulbs General => Topic started by: Janis Ruksans on May 20, 2011, 05:44:46 PM
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With me now in greenhouse are top of hardy Oxalis blooming. Alhough completely hardy here, seedlings I'm growing in greenhouse before selection of best ones. Today was pleasantly surprised by this beauty.
Janis
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With me now in greenhouse are top of hardy Oxalis blooming. Alhough completely hardy here, seedlings I'm growing in greenhouse before selection of best ones. Today was pleasantly surprised by this beauty.
Janis
This is a real beauty Janis ! :o :o :o Hope you can multiplie this fantastic Oxalis .......
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I agree with Chris, a real treasure that one.
I have a new potential problem. I've grown Oxalis lobata (perdicaria now) for many years and though it is vigorous and can be divided frequently, it has never spread about where I didn't want it, I just put it in a bigger pot every couple of years. But this autumn (we are now coming into winter), all the pots around the Oxalis pot have very tiny (one or two leaf) O. lobata in them, sometimes many. For the first time ever, it has seeded and I'm pulling out 10 or more every day from the surrounding pots of bulbs. I've not seen anything that looked like a seed capsule, but seedlings they definitely are. When I lift them carefully, there's no tiny bulblet at the base, just a fine, hair-like root, about 2 or 3 centimetres long. I've left a couple to grow on to be absolutely sure, but the fact is, I AM sure already. If it's going to seed about I'll have to dispose of it though it's such a good plant for late summer/autumn colour and even now, there are a few flowers.
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Lesley, are you sure it is the Chilean Oxalis lobata and not the Argentinian O. perdicaria? The Mediterranean one and not the year round rainfall fellow?
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Hi Lesley,the same thing happen to me with O lobata,and its all gone to garden heaven.
Oxalis gracilis.bye Ray
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That's the point, Ray. Oxalis lobata should be at home with you and O. perdicaria would dry off to death.
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Well I've always had it as Oxalis lobata but there was the article in a recent AGS Bulletin that said they are the same thing and that the name perdicaria has precedence. Is this not so? I'd rather call it lobata. But the point is that never having given a seedling in 40 years or more, this year there are hundreds, I assume from seed made in 2010. It comes up in early autumn, starting to bloom almost right away, and stays green until late spring I think. I haven't really noted when it is green but will do so from now on.
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Fact is that there is a precedence by the name perdicaria, botanically. Lobata is like a smaller, more compact perdicaria. From the cultivation point, they are very different plants; lobata comes from Chile where it is dormant in summer under completely dry conditions, like a Cape bulb.
The old perdicaria comes from the pampas where it is dormant in summer as well but enjoys year round rainfall even when it is dormant and this keeps the bulb plump. Many photos of perdicaria show a plant dying for a drink!
Your comments are very interesting, something changed that triggered seed production. Perhaps someone else has a second plant in the neighborhood?
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Hi Alberto,my O lobata went to heaven because I sent it there,it started to self seed so it got the axe.
Another oxalis that I had for years is and never self seeded but is now is O obtusa so it may be going to plant heaven also.bye Ray
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I'd be surprised if anyone else has O. lobata locally. There are just a few houses round about and none belong to gardeners; horses, llamas, alpacas, pigs et al but precious few plants except perhaps a few roses. ::) We had a very dry summer last year and for several previous, but this last summer has been cool and very damp.
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First flower on Oxalis laciniata 'Sandy', a recent purchase.
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Wow Roma !!! What a stunning beauty !
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That REALLY is something Roma! From the colour of the foliage and the chips, I would guess the colour is pretty true? Is this named for Sandy Leven?
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Oxalis depressa - South Africa
(http://img59.imageshack.us/img59/9215/oxalisdepressa.jpg)
(http://img851.imageshack.us/img851/3093/pict0011yd.jpg)
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A lovely species but not for free ranging in the garden. ::)
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That REALLY is something Roma! From the colour of the foliage and the chips, I would guess the colour is pretty true? Is this named for Sandy Leven?
Yes Lesley the colour is about right. I don't think it is named for Sandy Leven but I'm not sure. I must ask Jim Sutherland next time I see him. I bought the plant from him at the Aberdeen show.
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Does anyone know what the name of this Oxalis is? The flowers are looking like O. pes-caprae, but it is not this weedy one!
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Oxalis lobata
Poul
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Oxalis lobata and O. perdicaria are the only ones in which the leaflets are not inserted in a single flat plane. This can be clearly seen in your photo.
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Now, this Oxalis bloom for me
Oxalis aff. monophylla
Location: South Africa, Dysseldorp
(http://img442.imageshack.us/img442/9145/oxalisaffmonophylla.jpg)
Oxalis luteola
Location: South Africa, Doornrivier
(http://img403.imageshack.us/img403/6195/oxalieola.jpg)
Oxalis spec.
Location: South Africa, Bloeberg, Khamiesberge
(http://img845.imageshack.us/img845/906/oxalisspec.jpg)
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Now, this Oxalis bloom for me
Oxalis aff. monophylla
Location: South Africa, Dysseldorp
Oxalis luteola
Location: South Africa, Doornrivier
Oxalis spec.
Location: South Africa, Bloeberg, Khamiesberge
Very nice, Peter.
Until I saw Forumist Dabi's photo of O. monophylla here in the forum some time ago, I didn't know it existed..... very nice plant.
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A few Oxalis:
http://www.fgas-sukkulenten.de/index.php?view=category&catid=55&option=com_joomgallery&Itemid=85&lang=de
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I don't think your O. luteola IS luteola. I'm sorry that I can't really say more than that as mine is just about died off now but the leaves are bright apple green, slightly dented at the apex and not coloured on the backs. Nor does it have red stems and the leaves and stems are hairless. I haven't a picture of luteola but here is luteola maculata which is only different in having dark reddish patches on the leaves. Otherwise it is identical. I think the one you picture is more like a form of O. purpurea. I'd have to admit the images available through Google are inconclusive.
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I don't think your O. luteola IS luteola. I'm sorry that I can't really say more than that as mine is just about died off now but the leaves are bright apple green, slightly dented at the apex and not coloured on the backs. Nor does it have red stems and the leaves and stems are hairless. I haven't a picture of luteola but here is luteola maculata which is only different in having dark reddish patches on the leaves.
Oxalis luteola maculata. Note the hairs on the stems and leaves, and some red stems.