It's called a Trumpet Vine. It grows very vigorous and can be invasive, even growing up from your grass. It is pretty and attracts butterflys.
Desfontainia Spinosa, otherwise known as false holly
honey suckle
It sounds to me like a kind of morning glory.
Could be 'trumpet creeper' or maybe 'datura' . Try going to images.google.com and typing in either of these phrases/words, and see if the images that come up match the flowers you see.
cucumbers
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