It depends on your setup. If you build your own space (which doesn't have to be expensive) then it can work. With a tent it is probably too cold. If your attic temps dip below 55-60 at night it's probably too cold. You can grow plants near freezing but it would be very slow.
A small tent with a small heater in it hooked up to a temp controller would work too. It adds electricity cost though. The dry air produced by a heater would require significant humidification in most cases also.
.png)
It depends on your setup. If you build your own space (which doesn't have to be expensive) then it can work. With a tent it is probably too cold. If your attic temps dip below 55-60 at night it's probably too cold. You can grow plants near freezing but it would be very slow.
A small tent with a small heater in it hooked up to a temp controller would work too. It adds electricity cost though. The dry air produced by a heater would require significant humidification in most cases also.