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Alpine house question
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Topic: Alpine house question (Read 8218 times)
Alex
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Posts: 638
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Oxford, U.K.
Alpine house question
«
on:
January 25, 2009, 10:35:24 PM »
I wonder if anyone can help with the following...
I am about to erect a new alpine/bulb house, and I am considering one that is offered with internal shading. Obviously this will shade fine - but will it have any effect on heating by the sun? I have previously only used external shading, which I know is better for this, but is the internal stuff any use at all?
Thanks!
Alex
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tonyg
Chief Croconut
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Re: Alpine house question
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Reply #1 on:
January 25, 2009, 10:51:56 PM »
Hi Alex
I have rigged my shade netting both inside and outside over the years (nothing sophisticated - just shade netting pegged on with clothes pegs.) It does help inside but its much better outside where it reduces the heating effect more as well as giving shade/preventing scorch.
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Tony Goode. Norwich UK. Mintemp -8C
https://thealpinehouse22.wixsite.com/website
http://www.srgc.org.uk/genera/index.php?log=crocus
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Brian Ellis
Brian the Britisher
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Re: Alpine house question
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Reply #2 on:
January 26, 2009, 11:03:11 AM »
Quote
pegged on with clothes pegs
The gardeners friend, Tony, where would we be without them? We use far more in the garden than anywhere else!
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Brian Ellis, Brooke, Norfolk UK. altitude 30m Mintemp -8C
annew
Daff as a brush
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Re: Alpine house question
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Reply #3 on:
January 26, 2009, 07:31:43 PM »
Good for holding grafts together too!
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MINIONS! I need more minions!
Anne Wright, Dryad Nursery, Yorkshire, England
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Lesley Cox
way down south !
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Re: Alpine house question
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Reply #4 on:
January 26, 2009, 10:20:15 PM »
Definitely in the garden but also in the kitchen. I use them to hold in place the wrapped top of a cereal packet and others. Jolly efficient and keeps things absolutely airtight if they're folded over 2 or 3 times.
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Lesley Cox - near Dunedin, lower east coast, South Island of New Zealand - Zone 9
maggiepie
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Re: Alpine house question
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Reply #5 on:
January 26, 2009, 10:36:07 PM »
They are also excellent keeping frozen peas in place after opening packet.
I have to say I am really pleased I don't seem to be the only person that keeps pegs in my gadget kitchen drawer.
We make our own bread and after it cools down and gets bagged, a peg is just right for keeping the bag sealed.
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Helen Poirier , Australia
tonyg
Chief Croconut
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Re: Alpine house question
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Reply #6 on:
January 26, 2009, 10:45:55 PM »
Schhhh thats enough about pegs. If we don't watch out they'll get a thread of their own
AND we have not really answered the original question either
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Tony Goode. Norwich UK. Mintemp -8C
https://thealpinehouse22.wixsite.com/website
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Maggi Young
Forum Dogsbody
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Re: Alpine house question
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Reply #7 on:
January 26, 2009, 11:00:15 PM »
Well, in Aberdeen we never USE greenhouse shading.
Alex is in Oxford, so he might well find I it useful... you're nearer Alex, Tony..... what is the suggestion YOU are going to hang on the peg?
?
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Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!
Editor: International Rock Gardener e-magazine
Alex
Hero Member
Posts: 638
Country:
Oxford, U.K.
Re: Alpine house question
«
Reply #8 on:
January 27, 2009, 10:03:39 AM »
And I was so excited when I logged on to see fully 8 replies in my thread...(!) Thanks to Tony for thoughts on shading anyway. Any more?
Alex
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David Shaw
SRGC Publications Manager
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Posts: 1228
Re: Alpine house question
«
Reply #9 on:
January 27, 2009, 01:52:55 PM »
Our only shading is an ash tree to the south east of the greenhouse
.
Acually it works quite well. The ash is one of the last trees to come into leaf so the greenhouse gets full sun in the early spring when the plants need it then dappled shade in the heat? of the summer.
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David Shaw, Forres, Moray, Scotland
shelagh
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Re: Alpine house question
«
Reply #10 on:
January 27, 2009, 04:10:41 PM »
Alex being a bit more
posh
than Tony we use old net curtains on the outside, fixed with 'shhh you know whats' they are great for shade and reduce the temperature somewhat. They are handy for stretching across frames as well.
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Shelagh, Bury, Lancs.
"There's this idea that women my age should fade away. Bugger that." Baroness Trumpington
Peter Maguire
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Re: Alpine house question
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Reply #11 on:
January 27, 2009, 08:10:14 PM »
Just thought I'd add a "no pegs" reply. I rigged up system of outside shading (proper garden centre green plastic shading) which is held away from the glass by about 10cms on wires stretched the length of the greenhouse on the sunny, west side (my greenhouse runs north-south, and the house is to the east). The original reason for outside shading was that all my reading indicated that this would be cooler. I think that raising it well away from the glass helps with the coolling also.
Having had the greenhouse for about ten years, I can't imagine how I could cope with full inside shading anyway, too much potential for damage to the plants when taking it down for the winter. I have, however, draped extra shading last summer over an internal frame over a plunge containing japanese hepaticas. For a small area it's fine, but I wouldn't use it for my main shading.
Peter
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Peter Maguire
Newcastle upon Tyne, U.K.
"I've killed so many plants. I walked into a nursery once and my face was on a wanted poster." - Rita Rudner
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Onion
Sr. Member
Posts: 450
Re: Alpine house question
«
Reply #12 on:
January 27, 2009, 08:23:55 PM »
I hope I can describe as foreigner what I want to describe.
Internal shading has not the same effect on heating than the external shading. The ultraviolet light go through the glass an heat the air in the house. With the external shading you broke the light before it went to the glass.
Will you erect a bulb house or an alpine house? Many bulbs from arid areas need a summer dormancy. So the "positiv" effect of the internal shading is positiv for you.
When you cultivate alpines in the house it is import because of the cooler conditions, that you have enough glass-surface to ventilate in summer. Danger in this moment is that the temperature inside get higher than outside. In Germany described with the word "Glashouseffect".
My English dictionary is my best fried
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Uli Würth, Northwest of Germany Zone 7 b - 8a
Bulbs are my love (Onions) and shrubs and trees are my job
Alex
Hero Member
Posts: 638
Country:
Oxford, U.K.
Re: Alpine house question
«
Reply #13 on:
January 30, 2009, 10:41:57 PM »
Thank you Uli, that is helpful and the English is good and easy to understand.
As advised by you and others, and also based on my previous experience, I have gone for outside shading.
Cheers,
Alex
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Ross Graham
Newbie
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Re: Alpine house question
«
Reply #14 on:
February 01, 2009, 07:15:10 PM »
Thanks Alex for asking this question as Iv learned something new which doesnt happen every day! Im now going to redo my shading so that its outside. I had to buy more pegs recently as Id used too many on my glasshouse and there were not enough left for nappies. Funny how my priorities have changed.
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Alpine house question
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