a few questions and identification help :P

These plants, would you think they are flower of spring cabbages?, I remember sowing them and then planted them out, they then appeared to die so I forgot about them, now they're huuuge.

and also I have some other plants That were overlooked, they are either pumpkins/melons/... thinking their pumpkins...

The leaks I planted out in May, idk don't seem to have grown that much.. I sprinkled some organic fertilizer on 1 row to see If I see any difference, also the holes have filled uo with soil, does that matter?

I have more to plant out and i'm thinking will plant these a lot less deeper and then just earth up.

with regards to picking broadies.... i'm getting some huge pods now, should I have picked already or what? I know my mum prefers to use them when they are "harder" and need boiling well for stews etc..

my Dads spuds from the photo you can see a few are dying off, any ides what they could be? and btw his garden is covered in slug pellets so not snails/slugs.. apparently there are holes in the young potatoes..


and finally a few squash plants were looking a bit sickly with some white spots on leaves, I gave a small sprinkle of organic fertilizer/mulched and they seem to be doing better now, although still pale in comparison to the other monsters