Tomato greenhouse keeps blowing over

[womananddog]

Last year I was given a "greenhouse" - plastic on an aluminium frame. It was useless as it kept blowing over/away. How do people keep theirs tethered? I want to use it on my patio so can't bury the flaps

are there any eyelets on the cover anywhere so that you could run strong twine through and tie a brick to the end? so the brick sits on the floor I mean.

I tried weighting the flaps last year and it seemed to work loose when it was windy. I didn't tie the weights on so maybe that would work

Put a paving slab or two in the bottom.

Mine had three eyelets at the top, to let the canes poke through. I twisted twine around the canes and then weighted each end of the twine with a brick, back at ground level. I had perforated bricks so it was easy to tie the twine round them securely.

I have also in the past put weights on the aluminium frame, rather than the plastic.