Thanks for helping me narrow down the list! Were down to 3 middles for [name_u]Linden[/name_u].
WDYT?
[name_u]Linden[/name_u] [name_f]Evangeline[/name_f] ([name_m]Long[/name_m], sweet, beautiful)
[name_u]Linden[/name_u] [name_f]Rose[/name_f] ([name_m]Just[/name_m] feels right, flows well)
[name_u]Linden[/name_u] [name_f]Eve[/name_f] (Short, cute)
[name_f]Rose[/name_f], hands down. Some people may say [name_f]Rose[/name_f] is a filler middle name but I think [name_u]Linden[/name_u] [name_f]Rose[/name_f] sounds really sweet and pretty. Like you said, it flows well and feels just right. If I meet a girl named [name_u]Linden[/name_u] [name_f]Rose[/name_f], I know I’ll want to call her [name_u]Linden[/name_u] [name_f]Rose[/name_f] (not just [name_u]Linden[/name_u]) at least half of the time, just because the combo feels right. I love [name_f]Evangeline[/name_f] (have it on my own short list) and adore [name_f]Eve[/name_f] -I can’t really pick between these so I guess my second choice is anything that flows better with your last name, but [name_u]Linden[/name_u] [name_f]Rose[/name_f] is definitely my favourite. 
[name_u]Linden[/name_u] [name_f]Rose[/name_f] is my favorite. I agree with [name_f]Cynthia[/name_f], [name_u]Linden[/name_u] [name_f]Rose[/name_f] sounds sweet and pretty. I would call her [name_u]Linden[/name_u] [name_f]Rose[/name_f] and [name_u]Linden[/name_u].
I like [name_u]Lindon[/name_u] [name_f]Eve[/name_f] best, but I think it is only bc I like [name_f]Eve[/name_f] better than [name_f]Rose[/name_f]. [name_u]Lindon[/name_u] [name_f]Rose[/name_f] flows better, even though [name_f]Eve[/name_f] works, [name_f]Rose[/name_f] sounds and flows better. It is depends on your surname, as someone already mentioned.
[name_u]Linden[/name_u] [name_f]Rose[/name_f] flows the best of the 3. I prefer [name_u]Linden[/name_u] [name_f]Eve[/name_f] because in my area [name_f]Rose[/name_f] is so overused as a middle name, it’s essentially the default middle. Either one of those two would make an excellent choice.
[name_u]Linden[/name_u] [name_f]Rose[/name_f] flows very well and it’s pretty and feminine. Second choice would be [name_u]Linden[/name_u] [name_f]Evangeline[/name_f].
Awesome thanks everyone. Our last name sounds like Crozby.
I think [name_u]Linden[/name_u] [name_f]Rose[/name_f] Crozby sound beautiful. Its not really that common of a middle where i am from also.
[name_u]Linden[/name_u] evokes a sweet-smelling tree for me having grown up near so many linden trees that [name_f]Rose[/name_f] and [name_u]Linden[/name_u] together sounds super Botannical–like [name_f]Marina[/name_f] [name_f]Oceane[/name_f] sounds aquatic.
[name_u]Linden[/name_u] [name_f]Eve[/name_f] creates a beautiful, gentle evening image for me so I like that a lot, but [name_u]Linden[/name_u] [name_f]Evangeline[/name_f] is so very pretty, romantic and feminine (and potentially sexy as an adult) that it’s my still my favorite.
This has been my dilemma with using [name_f]Rose[/name_f]… So I then go back and for from [name_f]Eve[/name_f] and [name_f]Evangeline[/name_f]. Its so hard!
I wouldn’t let the botanical meanings stop you. I adore [name_u]Linden[/name_u] [name_f]Rose[/name_f] and think it has the perfect sound: soft and vintage but fresh. Your signature is filled with beautiful nature references so if that is your style, go for it! I do love [name_f]Eve[/name_f] and [name_f]Evangeline[/name_f] (both were on my short list for my daughter) but [name_u]Linden[/name_u] [name_f]Evangeline[/name_f] is a bit too long for my taste (and too much “n” sound) and [name_u]Linden[/name_u] [name_f]Eve[/name_f] is just a mite too short. [name_u]Linden[/name_u] [name_f]Rose[/name_f] all the way!
I’d choose [name_u]Linden[/name_u] [name_f]Evangeline[/name_f] because lindens are a type of tree and roses are a type of flower. [name_f]Eve[/name_f] is one of my most favorite names ever, but [name_u]Linden[/name_u] [name_f]Eve[/name_f] is too “wordy” to me – it’s a tree and the evening, and the combination is rather stark.
If doubling up on the plants doesn’t bother you, [name_u]Linden[/name_u] [name_f]Rose[/name_f] is a very pretty combination.
[name_u]Linden[/name_u] [name_f]Rose[/name_f] is so pretty and flows so well!
[name_u]Linden[/name_u] [name_f]Eve[/name_f] is lovely and somehow a bit magical.
Definately [name_f]Rose[/name_f], even though i like all 3 names I think [name_f]Rose[/name_f] flows best