Cloches

I am going to have to get/make some cloches to go over my cauliflowers for the winter - does the height of the cloche have any bearing on things? I have a framework that I used for netting over my peas and beans that attaches to a fence, and this would allow me to quickly staple some plastic sheeting over the frame to make a cloche (however, I am not overly sure how I would make an access point to allow me to water?) - however, this frame is approximately 30-32" high:



Is this too high? Also, would it matter that the back would be open to the fence?

I have some curved sections of metal that I might be able to use along with some wood to make something lower, or alternatively I could simply make the cloches out of wood?

As for the question of access, would it be best if the cloche was simply lifted off completely to water, or would a hinged affair be sufficient?

Finally, what thickness/type of plastic sheeting would be needed to make the cover, and does it matter if it is fully taut or not?

 

Not really, I just thought it would be needed to protect from frost etc? Will they happily grow outdoors with no cover then?

 

I reckon they are a bog standard variety as they are called 'All year round' and were a packet that I picked up in Sainsburys? I have some that were sown last week, that are just beginning to germinate now, with the idea of sowing a few more in a couple of weeks and then again in another couple of weeks for successional harvesting in the spring?

I am also considering growing garlic next to the caulis - do they need cover?

 

I'm not overly worried if they all catch up together @Kristen, I have a massive freezer so they will simply be blanched and frozen.