@Workyticket
I was quoted £100 for this last week
I mean - I love it but I'm 42! I proced up some Denby bowls and cringed at spending £100 on them... but they'd last forever
That bouquet is £100 because it has some expensive flowers in it; scabious, delphiniums, eryngium, antirrhinum, spray roses, peonies(?), fountain grass, etc. There are also a lot of them. You would be surprised how many flowers are used (a big armful) before they are stripped down and put together. It is probably bound and pinned with a quality ribbon and pearl headed pins. Putting it together might take a florist an hour as there is lots of fiddling making sure that all those expensive flower heads are in the right place and can been seen (not strangling each other which is often the case in DIY efforts).
Florists can only buy scabious in large wraps. It is £££ and is really delicate and not particularly long lasting. If a florist uses five or seven stems in your bouquet, they will still have at least 40 stems left to sell. That can be a bit of a problem for some florists if they aren't doing the rest of your wedding flowers. They're not a supermarket supplier who can allocate five stems to ten handtieds.
You won't get those flowers in Morrisons. Most of them are too delicate. Supermarkets are very clever how they present their flowers. They generally use big flowers to deceive the eye; lilies, small short roses, spray chrysanthemums, blooms, alstromeria, etc. With the exception of the lilies, all of these are cheap flowers. They also use little to no foliage but package it in such a way so that it looks like more than it really is. The quality is lower than most florists as supermarkets buy based on price rather than quality.
The biggest mistake a bride can make is to find a photo online and say, "this is what I want". It's like wanting to eat at Le Manoir but only having the budget for Pizza Express.
A much better approach is to find ten to fifteen photos with elements that you like; the colour of this one, the floaty effect of this one, this particular flower, the shape of this one, etc. It is much easier for a florist to build up a picture of the type of thing you are after and the colours you want. There are lots of other summer flowers that would achieve a similar loose country style that aren't £££. Tying with raffia rather than ribbon is also much cheaper.
Did the florist who quoted not say any of this to you?