Which preposition to use with sweetpeas

for Occurrences 2%

"One summer I stayed a fortnight with Grandmother Emerson and I picked the sweetpeas for her every morning.

in Occurrences 1%

" "And in a room you would select a vase that would harmonize with the coloring," added Margaret, who was mixing sweetpeas in loose bunches with feathery gypsophila.

Which preposition to use with  sweetpeas