evan writes:
i resently found a passionfruit with bright red flowers. i took a small

If it was from a neglected garden it might be the root stock from what
was originally a grafted passionfruit. I think they usually choose the
banana passionfruit, so I suggest you do a search for that and find out
whether it bears red flowers.

in a pot? do i need old wood for it to strike? the piece i have is one
of the green tips with some leaves (ive pulled off the flower buds).

I don't like your chances. Pull off all but the tiny tip leaves, put it
in sandy loam (first dip in honey or rooting powder), water with a bit of
seaweed solution, and keep your fingers crossed. If you had left the flower
on the plant you could have gone back later and collected a mature fruit
bursting with lots of seeds ready for planting! That would still be your
best bet. A lot of gardeners seem to not bother picking many passionfruit
after the initial burst of fruiting.
--
John Savage (for email, replace "ks" with "k" and delete "n")