Tomato Grow Bags

[meglet]

Can I use the same grow bag for this years tomatoes as I did last year or should I use a new one? I'm concerned there may not be enough nutrients in the old one. I use tomato feed so will this be enough?

Thanks

[nonomaybe]

If the bag smells sweet, you can use it again, but you're right in thinking that nutrients may be lacking. Hopefully the feed you have is a good one with a balanced analysis and a good range of trace elements, particularly magnesium.

[Whoever]

I'd be wary of using it again. Most of the nutrients will have been exhaused because tomatoes are heavy feeders. Also, last year was a very bad year for tomato blight and even if your tomatoes cropped well, some blight spores may have got into the compost which could infect this year's plants. Even adding liquid feed may not be sufficient. However, rather than waste the bag, you could try growing something different in it, such as salad leaves or possible even one or two strawberry plants.

[meglet]

Thank you both for your answers. I'll get a new one but I was trying to get out of it as i have a bad back and they aint half heavy!