What is taking over mt/and my neighbours gardens?? What is this plant???

I planted lots of seeds in about April when I moved and this one plant has grown (only one) and it has grown up the bamboo and my neighbour has adopted the flowers and branches that have grown through.
I threw away the seed packets although I remember one lot was marrows/butternut squash etc and one was flowers to attract butterflies.

(I live in the United Kingdom(England) South facing garden)

The flowers are a peachy orange colour(see picture), usually flowered out like a trumpet shape (in the picture they have closed up.
The branches are very spiny and prickly!
Also below the flowers there seems to be a large pod and my neighbour pointed out that there seems to be a fruit her side (small green ball no bigger then a golf ball See picture) which we both wonder what it is because I have dogs and she has cats (poisonous?)


Can anyone help me (and my neighbour) out on identifying this for us?!

 

Cucurbitaceae, probably the Butternut Squash, Cucurbita moschata. Didn't find any pictures with spines on them but found several varieties that are armed (have spines) in a straight google search. Don't believe it's poisonoous. Harry

 

Pumpkin, maybe.

 

Thanks so much, I'll look on google, can't wait until they get the fruit/vegies on them!

 

The chinese pumpkin plant looks exactly like that, the flower and the plant but the melon is different. Winter melon is round so it might be a winter melon.

 

I agree chinese or winter melon