[heygrow]

My Brussel sprout plants all seem to be growing well....about 2.5 ft tall at present. However I can only just see some very small sprouts forming, smaller than a pea.
As it is my first year growing sprouts, I wondered if they should be further ahead by now and will I have a problem with them not developing at all before the Autumn comes and then too late?

Is there anything I should feed them with?

[Goosegirl]

You don't say which variety they are, as some are earlies and some produce later on. It's only mid-August, so don't panic! You could give them a very dilute feed of a nitrogen-rich product or sprinkle same in powder form depending on your soil and previous nutrients applications, but you don't want to encourage weak and sappy growth in case the weather turns colder or they will be more prone to disease. They're hardy plants, so don't molly-coddle them - give their stems some kind of support so they don't bow over like mine have done in the past, and get the pan on in November!!! 

[heygrow]

They're Trafalger F1 hybrids from T&M (plants). Not sure if they are early or late.

[mumofstig]

A quick google gives this 

Brussels Sprout ‘Trafalgar’ produces a heavy crop of medium sized, firm button sprouts from mid December to late March that will retain their excellent quality over a long period of time

http://www.thompson-morgan.com/vegetables/vegetable-seeds/brassica-and-leafy-green-seeds/brussels-sprout-trafalgar-f1/171TM

So they've still got a long time to grow..................

[heygrow]

Ah thanks MoS! I was not sure if they just stopped growing when it got too cold.

[R6robbo]

My Brussel sprout plants all seem to be growing well....about 2.5 ft tall at present. However I can only just see some very small sprouts forming, smaller than a pea.
As it is my first year growing sprouts, I wondered if they should be further ahead by now and will I have a problem with them not developing at all before the Autumn comes and then too late?

Is there anything I should feed them with?
[/
quote]
Mine are pretty much the same as yours, nothing to worry about.