Bearing in mind I'm not an expert, I'd say there's a couple of things that might be causing fruit problems.

1. Your leaves are cupped which might indicate a magnesium shortage. Next stop will be interveinal chlorosis. This can be cured with Epsom Salt (available at CVS or elsewhere).

2. I'm not so sure about that mulch you're using. I would avoid dyed mulch personally.

Finally, peppers are self pollinating so that shouldn't be a problem. I'd let them keep going and see what happens -- with the weather now barely starting to cool it might be what they need to get going.

Good luck!

Mark

I would not call the plants leggy @ all - they do look a bit pale tho. I agree about that mulch not being a great choice for peppers - I understand woody mulches are acidic, may tie up nitrogen & are not good for any veggies - better for ornamentals & acid-loving plants.

IMPE, pepper plants love LOTS of compost & organic matter(both can be naturally high in magnesium). & also IMPE, once the fruits ripen (i.e. turn red/orange) production will slow, or even halt, for many varieties. Rule of thumb to improve production is to pick the 1st fruits as soon as they reach full size - & to remove/pinch off early blooms until plants are large enough to support fruit.

HTH

Here is a link that might be useful: Link 2 photo album

So, I will stop using the dyed mulch. I will pinch off early blooms (e.g., the small orange pepper). I will figure out how to add compost/organic matter (just started my compost so it won't be ready for quite a while).

What is IMPE?

IMPE = In My Personal Experience = )

& you can buy bagged compost @ the box stores & garden centers - I use the most inexpensive composted cow manure & spread it thickly - my piles are never enough for my needs.

Also forgot to add that woody mulches are supposed to encourage fungi as well.

Where the pepper is planted determines how well it grows. I had several pepper plants not doing anything. I uprooted one and gave to a friend who planted it in a north-eastern ewxposure (evening shade). Saw it today at her home bearing lots of peppers. Its older siblings are in my garden doing nothing, except for one which is in the shade and bore lots of peppers and is now reblooming.
I plan to uproot some of mine and plant them where they get morning sun and evening shade. That seems to be very important.