I currently use a hoe to clear weeds in my garden. However this is very labour intensive, given how quickly the weeds grow back.

I'm thinking of getting a Red Dragon weed flamer. What I would like to know is how quickly do the weeds grow back?

Would I have to do regular flamings for the first few weeks? And then after that I could I get away with doing it every fortnight?

I've attached a picture of my garden. It doesn't show very well, but most of the beds are covered with weeds.

The Red Dragon weed flamer comes in two models: the green 100,000btu one and the red 500,000btu one. On the one hand, I don't want something underpowered where it would take me too long to do the whole garden. But on the other hand I need the flame to be controlled enough so I don't singe the plants that I planted. That and the 10lb/hr fuel consumption for the bigger model is slightly worrying as I will be using 15kg cylinders.

Which model should I get for a garden like mine?

Thanks,

Richard