Sorry to burst your bubble Hayley but that one isn't a Chilli at all ;-( A seed from a Polygonum (i.e. weed) has got into your pot, I'm afraid. If you show the others we can tell you if the they are chillies or not.

If that is an unheated greenhouse it will be too cold to reliably germinate chillies in over here at this time of year. I do mine on top of the Rayburn.

Agree but even if it were a pepper plant it would be impossible in most cases to ID the variety from just a photo as they all look so similar. Hopefully your other plants are not so stretched and leggy from lack of sufficient sunlight as that photo shows.

Dave

These are the others, to be honest I think I got a duff pack of seeds as one turned out to be a radish, strange I know

Yes - those are much more as I would expect chillies to look like at this time of year. Mine are at a very similar stage. Have you grown them before? If not my recommendation is to grow them in containers in the greenhouse for their entire lives. Outdoors they are very hit and miss, and mostly miss, in our climate.

This is my first yes. I intend on keeping them in the greenhouse away from the children lol

Time to transplant into bigger containers soon. I grow three to a 2 foot trough. (Our US friends here will probably think that isn't big enough but they can grow them outside in their hot summers and the plants can get much bigger.) They are very trouble free pest and disease wise.

Will they produce fruits this year do you know with me growing them from seed? This is my first year growing anything in the green house.

Yes, they will fruit this year. They are really good value - I grew a few plants last year and have had my own grown dried Chillies all Winter from a few plants. They are way easier than tomatoes. I always grow mine from seed.

These aren't Chillies, they're Hungarian Wax peppers from seed. As you can see by the Hoya in the background they are perfectly happy growing in my porch.

Thank you so much.