figrat

which is best?

Yup. The pots, filled with compost ( and plants ) sit on a long gravel filled plastic tray an inch or so deep on the floor of the gh. I tie twine to the apex of the gh, and wind the stems of the toms around that to support them as they grow. There's a way of growing toms under glass in gravel using bottomless pots, which is called 'ring culture', this is sort of ring culture lite!

Growing plants

I tend to use the sun, if it shines.

which is best?

I grow my toms under glass in a long tray filled with gravel, and as Verdun mentioned, when watering I try not to splash the leaves - removing the lower ones helps here. It helps to avoid blight, but isn't bullet proof, unfortunately.

The gravel allows for free drainage, but also as a sump from which the plants can take up more water if they need it.
Works for me anyway!

Windy roof garden destroying everything

I think you need to consider erecting some sort of barrier to mitigate the effects of the wind.

A recent post mentioned windbreak netting, frm A**z*n as I recall.

Greenhouse base...securing to sleepers?

It's not just the length of the door you have to take into account, it's the aluminium channel running horizontally along the base into which the bottom door rollers fit.

If you just lengthen the door you may find it hard to open it.

which is best?

If they're very cheap, I use growbag compost, but in pots. Multi purpose is fine too, but whatever I use, I usually add some of my home compost and maybe some sieved leaf mould - seems to improve water retention.

Used Compost?

@Sam Glendinning - it does get a bit whiffy, I've got an old microwave in the shed that I use.

Today I feel so happy....

@ Fairygirl - might be worth contacting your local council, ours offers plastic daleks at very discounted prices.

brand new large slanted grit container to grow herb in...

Does it have any holes in the bottom for drainage? If not, you'll need to make some.

Greenhouse base...securing to sleepers?

I think you'd be wise to use the base, as I remember when I put mine up ( on a concrete base on pre existing hard standing) we got ground screws to secure the base to the concrete, so you should be able to do the same onto a brick wall. Do remember though, if you're raising the whole thing to get more height inside, the door will be raised as well, leaving a step the height of your wall to climb over every time you go in and out.

Bay tree root eradication

Best way to do it! 

Plan bee

One of the more uplifting news stories... 

Overwintered runner bans

Left the roots in after clearing last year's crop, they've survived the winter and putting up new growth. 

Red rhubarb leaves

I've got a bad feeling about this... 

What can I use as green manure?

Landcress just about to go to seed