Scottish Rock Garden Club Forum
Bulbs => Bulbs General => Topic started by: meanie on March 21, 2011, 11:06:47 PM
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As I'm new here I'm unsure as to whether this is the correct place to post this, so bear with me if I've got it wrong.
Does anyone have any experience growing this. I've bought three loose bulbs and have read a lot of conflicting advice so far. So, how deep should I plant them, how far apart, size of pot etc.
Thanks in advance!
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It is a subtropical bulb, dormant in winter without leaves, can be grown with very little light. Bulbs must be planted deep. Takes years to flower from seed. Very attractive tropical looking foliage. Flowers are produced in a separate stem. Spectacular plant under warm conditions.
You say nothing about your location and conditions.
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Thank you Ezeiza.
I guess that my hardiness zone would average out at 8, but it's my intention to grow it in the conservatory even in the summer. I decided on that as the first time that I saw one it was indoors at the botanic gardens in Oxford. How deep would you say - 70 to 80mm?
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Yes and 150 mm, even better. When well grown it makes a vigorous clump. It will need a very large container to acommodate the massive perennial roots.
I have seen it growing in the ground in subtropical areas and it is far better than in the normal pots people grow it in. Evidently, a large container is important.
The mix must be well drained, red acid subtropical soils are very open and crumby.
Hope this helps.
Besides this there are other species in cultivation not really expensive when available as seed but very expensive as mature bulbs (it takes a good number of years to reach flowering size).
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likes a fair bit of water when in growth but if it is soggy when going dormant you will loose it very quickly. Mine are just coming up now.
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Thanks again Azeiza and PeterT!
I see that you're in Derbyshire Peter - am I wrong to grow mine in the conservatory/
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mine are in the house! it likes being planted out for the summer but if it gets frozen it will be dead!
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So outdoors on warm days then....
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(http://i69.photobucket.com/albums/i76/arykana/2011/th_bet.jpg) (http://s69.photobucket.com/albums/i76/arykana/2011/?action=view¤t=bet.jpg)
(http://i69.photobucket.com/albums/i76/arykana/2011/th_bete.jpg) (http://s69.photobucket.com/albums/i76/arykana/2011/?action=view¤t=bete.jpg)
(http://i69.photobucket.com/albums/i76/arykana/2011/th_beteg.jpg) (http://s69.photobucket.com/albums/i76/arykana/2011/?action=view¤t=beteg.jpg)
I need help for this matter
What can this be, fungus or virus? Will survive the bulbs?
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nobody here? my poor flower is suffering!
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I don't grow Scadoxus, Erika, so I'm no help to you.... where are the African Bulb meisters? ???
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Do you know it is a tropical/subtropical bulb? It likes hot growing conditions during a long season.
Is it possible that it received a sudden cold spell?
The lesions resemble a lot the presence of nematodes.
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Usually we have a long, hot and dry summer - but, yes, this year had a cold spell
Nematodes pfujjjjjjj, but it can be I will spray them
Thank you!
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Make a simple test: with care dig one of the big roots. If clean it should look totally normal, without any deformation or swelling. After the examination, put it back in place and cover.
If the roots are normal, it was a cold spell and this has no remedy. Be careful with the water and that's all.
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Ok, thank you - maybe I over water ::)
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For these hot climate plants, the best is to water well then let dry well, then water well, etc.
If in pots, holes must be on the pots sides as Heinie has shown for several South African bulbs he grows.
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(http://i69.photobucket.com/albums/i76/arykana/2011/th_bet.jpg) (http://s69.photobucket.com/albums/i76/arykana/2011/?action=view¤t=bet.jpg)
(http://i69.photobucket.com/albums/i76/arykana/2011/th_bete.jpg) (http://s69.photobucket.com/albums/i76/arykana/2011/?action=view¤t=bete.jpg)
(http://i69.photobucket.com/albums/i76/arykana/2011/th_beteg.jpg) (http://s69.photobucket.com/albums/i76/arykana/2011/?action=view¤t=beteg.jpg)
I need help for this matter
What can this be, fungus or virus? Will survive the bulbs?
Hi Erika ,
I have just found your topic with this problem ....
I know this problem well – I had a lot of problems with some Amaryllidace ....I have lost near all my Griffinia + Eithea ...and also my Scadoxus + wintergrowing Hippeastrum had this problem – now it is really solved and my Pamianthe has now again healthy leaves –I’m really happy !!!
I did never exactly know what is the problem – either mites or Stagonospora ...both looks similar !
Before some weeks a wrote to a person – he work for agriculture . He has agreed to help me and I send him some ill leaves – his answer was clear : thats are mites
The only absolutly way to kill them is to lay the bulbs in hot water ( 2 hours with 43,5° ) ...but that is impossibly for me ( with my conditions )
So he suggest me to use :
Spraying with Vertimec ( the active is Abamectin ) ,it is also possibly to use Axoris ( also Abamectin ) or Lizetan ( Methiocarb )
It is really importent to use only this actives !!! there exist also some other insecticides ...but they have other actives – and so they will not help .
The second really importent step is to use also so called Penetrationsmediums
( I dont know the word in your laguage ) – this medium helps that the insecticid goes in all scales of the bulb – this man has suggest me „Silvet Gold“ or „Break tru“ . A dash liquid for washing kitchenware is similar ...but it is not so helpful.
I have asked in my shop where I always buy my material for plants but they could not helping me ....it is not allowed to give this things to private persons .....but with the help of a good friend I have received a small portion of Vertimec + BreakTru ....
The third really importent information was that I should spray this mix 3 times .....all 3-4 days ( thats the reason that my earlier treatment has never help ) – this kind of mites have a very short cyclus for regeneration ....so it is importent not to wait 6- 7 day ( as is normal for Akarcides )
After this treatment my plants grows again well !
Good luck
Hans
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Do you know it is a tropical/subtropical bulb? It likes hot growing conditions during a long season.
Is it possible that it received a sudden cold spell?
The lesions resemble a lot the presence of nematodes.
Alberto C. :
this are not nematodes ....
We call it in german "Roter Brenner" ....many Hippeastrum have this problem -after sending some leaves to this specialist is it clear - thats mites .
Hans
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What about neem oil, or alcohol used for mites on plieonies?
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Peter T
this specialist wrote me also it is possibly to use Amblyseius mites ( as biological treatment )
whats are "plieonies" ???
I have tried neem oil agaist this beasties ....without any succsess !
I would not use Alkohol on my Scadoxus ...the risk it for me to high ....I use it only on my Nerium oleander !
Hans
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I think Peter has made a typing mistake, Hans... he means Pleiones
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Here is a information about this "Penetrations medium " ...sorry only in german :
http://www.dlr-rheinpfalz.rlp.de/internet/global/themen.nsf/a20ccd4f38ac9025c1256ea6004f63d3/99657c23ec8cedefc12570d7004b4b0e/$FILE/08_Augustin_Additive.pdf
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I think Peter has made a typing mistake, Hans... he means Pleiones
Thanks Maggie
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You asked the very question I was about to, Peter, so I was on the wavelength!
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Maggi and Peter :
this problem with "Weichhautmilben" is only on Amaryllidaceae ....not on Pleiones !
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Hans, look at this ,please.... perhaps there is a connection with orchids...
http://www.orchideenforum.de/weichhaut.htm
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Maggi ,
I believe there exist a lot of this animals ....but I'm not a specialist for Tarsonemidae !
Maybe there are also mites who attacs orchids ...
The importent thing is that we know thats mites and how we can figth it ;D
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Yes, too many mites, everywhere, for sure!! :-X
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this specialist - his name is Dr. Thomas Brand ( I'm really grateful for his diagnosis ) has written a very nice book :
"Pflanzenschutz bei Kakteen und anderen Sukkulenten"
published from the "Deutsche Kakteen Gesellschaft"
with a lot of good pictures and descriptions !
Hans
http://www.dkg.eu/cms/cs/index.pl?navid=Pflanzenschutz_1166&sid=de
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Thank you all the comments. My husband already had spay it.
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It's healing! thank you!
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Erika ,
thats a good news !
Please dont forget to spray it several time ( always with a break of 3 days )
....and be careful with new Amaryllids ...they could have again new mites :o
Hans
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It's healing! thank you!
8) :D 8)