What can i grow in a grow bag?

Most salad stuf...try puting the bags on their sides rather than flat....there's more soil then for the plants to get their roots into. Or, you could also use them as a base for the ring-culture method...
Tomatoes grown by Ring Culture  
     
 

For reasons topographical (my plot slopes) I built my greenhouse above ground level with a wooden floor. This avoided the civil engineering to level the site but presented a problem - how do I grow my tomatoes? There are no beds to plant into and pots or grow bags are a pain to water (and to contain spillage) and are messy - answer ring culture.

Having some 25mm marine ply as an off cut from renovations to my kitchen, I constructed a box, somewhat reminiscent of a small coffin, about 1.8m x 60cm with sides about 30 cm high and a bottom, but no lid. The box was placed in the greenhouse taking up most of the long side, and then lined with two layers of clear polythene sheet. Into the lined box went clean pea shingle to a depth of about 15 cm. The bottoms were cut from five old 23 cm plastic pots with a craft knife and tomato plants carefully planted in JI No 3, leaving space for watering. Temporary polythene sheet bottoms were used to prevent the JI falling out.
 
   
 The pots were placed on my shingle base and the temporary bottoms carefully removed. A good watering settled in the plants and supporting canes were attached to the roof of the greenhouse. This was the last water to be applied via the pots; future watering was into the shingle base, which was kept wet. When the fruit began to form the pots were fed with proprietary liquid fertiliser. All of this magic is possible because the plants form two distinct root systems, the water absorbing roots, which reach down into the shingle, and the feeding roots that form in the compost in the pots.
A distinct advantage is the ease of maintenance as the water level in the base is not critical (unless it rises over the sides and causes a flood!). And the feeding just requires the dilute fertiliser to be added to fill the space at the top of the pots. It is all very clean and orderly and recyclable as the shingle in the base can be washed and reused each year.

The crops produced are the equal of those grown by more conventional means and the system seems capable of growing sweet peppers and other exotica - further trials next year.

By Bruce Jones

I find it chepaer to buy big bags of potting compst and plant stuff in pots.  How much compost is there in a growbag?  then look at the BIG bags of compost. A lot of places do say 4 x 75litre bags for £10, so just compare that with how much is in those growbags.

I grew pak choi in a grow bag. Did well anorl     I stack em two deep sometimes for chillies and aubs but you have to remember to cut holes in both bags  :oops:  

yeah exactly    Good luck

you can bung them in the compost when you've done with them or spread them out into the garden or plot so quite good value

I use growbags for growing lettueces, peas, beans, beetroot, tomatoes, cucumbers anything basically. This year i'll be using them for aubergines too and other squashes.

Turned one growbag on its side cut off its topand put some chitted spuds in, just thought i'd try it. Checked them today and the potatoes seem growing nicely.

Good luck with it all!