I worked as a florist, for 60's style bridal bouquets we used a lot of things like ranunculus, lily of the valley, gyp, peoni's, small headed and spray roses and chrysanthemums. Freesia and carnations were also popular (and available) back in the 60's/70's.
emerald green is a good colour, as most things will go well with it. If its for a bridal bouquet, teardrop shape was very popular back then
I got married in 1970 - I really really wanted a bouquet like the one I'd seen in a bridal magazine, simple, elegant, stylish
No one else liked it and I ended up with freesias ......
I'm too young to remember the 60s
The Moody Blues, Yardbirds, Bob Dylan ............ I remember them
My parents married in the 40s, but I'm the youngest of 6
Princess Margaret's wedding bouquet (1960) was white orchids and stephanotis.
Princess Alexandra's (1963) carried freesias, narcissi, stephanotis and lilies of the valley.
This is a pic of my mum's in 1963. You can see carnations, fern, arum lillies and those horseshoe things. I'm guessing the flowers were all white.
Red is the complimentary colour for green so something in the peach to pink colour range would fit nicely with the whole 60s/70s vibe. Green and orange were quite commonly seen together. Purple also goes well with green and also fits with the colour schemes of the period. White would be very cool and classy but not at all typical of that era. My bouquet was a ball of carnations and rosebuds carried on a ribbon....it wasn't all big white frocks and cascades of blooms in the hippy/post hippy era.