Click Here To Visit The SRGC Main Site
I have been reading Philips and Rix Bulbs and looking at how to construct a bulb frame. However I am a little mystified as to whether these are covered or not. The book says the bulb frame helps keep the bulbs dry in summer etc so presumably that means they are protected from rain? If the frames are covered - what with? How does a bulb frame differ from an alpine house. I have been looking at getting one of the Access Cold Frames to use as a small alpine house but is this really the same as a bulb frame?I do understand that bulbs need different conditions to other alpines and should be kept separate. It just seems strange that whilst the construction of the raised bit of the frame and filling it is discussed there is no discussion of what to cover it with.
In my experience Access frames are fine for bulbs - if a bit expensive. Last year (?) Anne Wright had an instructive series of posts on home-made frames.
The cover/roof and sides are glass or polycarbonate to obtain maximum use of all available light. Martyn mentions the fact that excess snowfall weight can make the frame collapse.
Thanks Gerry - I am thinking of treating myself to an Access cold frame eventually, struggling to find information on home made frames, I can find info about the bases but not the covers
Relevant to this thread and also to Tim's post here : http://www.srgc.net/forum/index.php?topic=10715.msg281288#msg281288 ........... I and M Y's article on our raised "slab" beds and removeable covers : (Attachment Link) and for other things....http://www.srgc.org.uk/feature/ichristie/beginalp.html Ian Christie's starter noteshttp://www.srgc.org.uk/feature/back%20to%20troughs/backtroughs.html Get together to learn- pictures that show the fun http://www.srgc.org.uk/nurseryws/ws.html Ian Christie's Nursery workshops - with seed starting notes etc http://www.srgc.org.uk/journal/young/bulbsfromseed.html Ian Y's Bulbs from seed article And leaving perhaps the most important resource to last : http://files.srgc.net/journals/SRGCIndex2013January.pdf Full Index to SRGC Journals - and ALL, except the few most recent ones, are freely available to anyone online here : http://www.srgc.net/site/index.php/extensions/journal
Helen - Anne's posts on home made frames/plunge beds are here:http://www.srgc.net/forum/index.php?topic=8605.msg232408;topicseen#msg232408
Helen. The frames of my home made frames are made of dexion (second hand angle iron used in shopfitting amongst other things). This is built up to waste height. Within the frame are paving slabs to form the internal base and wooden shuttering boards to form the sides thereby creating a box. To the back are screwed wooden pillars approx 4 x 2 cm and at a height of around 30cm. The same at the front but a few cm less to provide a slope. I have some old secondary double glazing channelling screwed to the back posts into which my covers just slide and rest on the front ones. I have been lucky to retain some old secondary double glazing panels which are perfect although you can use polycarbonate but this will need holding down as it is too light otherwise. The sides are completely open so allow an overhang to suit your needs. They have survived close to twenty years so far. Relatively cheap although sourcing some of the parts may need some searching around. Good luck.
Helen: if you can afford Access frame(s) then that is an easy solution - many friends have these and swear by them.If you need/want a more homemade version you can get a good home for your plants by various means- and covers can be constructed/contrived in many ways too. (I've just remembered that there are descriptions in old journals of Mike and Polly Stone's plunge beds in "The Stone Column", too) The main difference, by the way, between a plunge bed ( access frame) and an alpine house is that the former provides protection for the plants while the latter does that and also provides cover for the gardener!