Cannot think of a good middle name for [name]Ivy[/name]!
[name]Love[/name] longer feminine names in the middle spot and mostly something that easily rolls of the tongue, so flow is very important.
Really like [name]Cecily[/name], [name]Genevieve[/name] or [name]Imogen[/name], but don’t know if they flow too well… need some fresh ideas!
I love [name]Ivy[/name]!
[name]Ivy[/name] [name]Cecilia[/name]
[name]Ivy[/name] [name]Lydia[/name]
[name]Ivy[/name] [name]Helena[/name]
[name]Ivy[/name] [name]Cordelia[/name]
[name]Ivy[/name] [name]Caroline[/name]
[name]Ivy[/name] [name]Juliet[/name]
[name]Ivy[/name] [name]Elspeth[/name]
[name]Ivy[/name] [name]Amelia[/name]
[name]Ivy[/name] [name]Letitia[/name]
[name]Ivy[/name] [name]Linnea[/name]
[name]Ivy[/name] [name]Rosalia[/name]
[name]Ivy[/name] [name]Adele[/name]
[name]Ivy[/name] [name]Camille[/name]
[name]Ivy[/name] [name]Seraphina[/name]
[name]Ivy[/name] [name]Madeleine[/name]
[name]Ivy[/name] [name]Louisa[/name]
[name]Ivy[/name] [name]Abigail[/name]
[name]Ivy[/name] [name]Eloise[/name]
[name]Ivy[/name] [name]Theodora[/name]
[name]Ivy[/name] [name]Josephine[/name]
I’ve been considering [name]Ivy[/name] [name]Kathleen[/name]. You might like [name]Ivy[/name] [name]Katharina[/name] or [name]Ivy[/name] [name]Katrina[/name], or some other variant. 
[name]Love[/name] [name]Ivy[/name]!
I think for it to have a good flow, you should avoid names beginning with a vowel as [name]Ivy[/name] ends in a vowel (sound).
[name]Ivy[/name] [name]Madeleine[/name]
[name]Ivy[/name] [name]Bettina[/name]
[name]Ivy[/name] [name]Jacinta[/name]
[name]Ivy[/name] [name]Jemima[/name]
[name]Ivy[/name] [name]Marissa[/name]
[name]Ivy[/name] [name]Natalia[/name]
[name]Ivy[/name] [name]Sabrina[/name]
[name]Ivy[/name] [name]Cordelia[/name]
[name]Ivy[/name]'s in my top 5 names and these are some of the middles I’ve considered with it:
[name]Ivy[/name] [name]Rhiannon[/name]
[name]Ivy[/name] [name]Mirabella[/name]
[name]Ivy[/name] [name]Penelope[/name]
[name]Ivy[/name] [name]Susannah[/name]
[name]Ivy[/name] [name]Catherine[/name]
[name]Ivy[/name] [name]Sophia[/name]
[name]Ivy[/name] [name]Tabitha[/name]
[name]Ivy[/name] [name]Melina[/name]
[name]Ivy[/name] [name]Cordelia[/name]
[name]Ivy[/name] [name]Beatrice[/name]
[name]Ivy[/name] [name]Eleanora[/name]
[name]Ivy[/name] [name]Francesca[/name]
[name]Ivy[/name] [name]Louisa[/name]
[name]Ivy[/name] [name]Jessamine[/name]
[name]Ivy[/name] [name]Rosanna[/name]
[name]Ivy[/name] [name]Rowena[/name]
My grandmother’s sister was called [name]Primrose[/name] [name]Ivy[/name] [name]May[/name] and I think [name]Ivy[/name] [name]May[/name] sounds really sweet together although like you I do prefer longer middles with [name]Ivy[/name]. [name]Ivy[/name] [name]Primrose[/name] could be cute too!
Best of luck
I’m drawn to names starting with a vowel for [name]Ivy[/name]'s mn. I believe I just like the alliteration.
My best contenders are [name]Ivy[/name] [name]Emmeline[/name] and I can’t help but like [name]Ivy[/name] [name]Imogen[/name].
I had a dream last night that I was scheduled for a c section and needed to come up with [name]Ivy[/name]'s mn fast. So I chose [name]Ivy[/name] [name]Addison[/name]. [name]Addison[/name] is the spot where we honeymooned and my favorite childhood vacation and now has become my husbands favorite as well.
I mentioned [name]Ivy[/name] [name]Addison[/name] to him when I woke up and he loved it., my only concern is how trendy it is and not as frilly as id like. he also likes [name]Ivy[/name] [name]Emmeline[/name]. There is something special about [name]Ivy[/name] [name]Imogen[/name] tho
Also liked [name]Ivy[/name] [name]Gwyneth[/name], but dh Hates [name]Gwen[/name] names 
More than welcome to more suggestions
[name]Long[/name] way away til id really need to decide, but its fun to think about
2mn would be [name]Claire[/name], [name]Jewel[/name], [name]Grace[/name] or [name]Raye[/name]/[name]Jo[/name]/[name]Josephine[/name] (all very special, just whichever sounds best)
What aboue [name]Ivy[/name] [name]Josephine[/name] [name]Addison[/name] or [name]Ivy[/name] [name]Addison[/name] [name]Josephine[/name]?
[name]Ivy[/name] [name]Evangeline[/name]
[name]Ivy[/name] [name]Amelia[/name]
[name]Ivy[/name] [name]Catherine[/name]
[name]Ivy[/name] [name]Dulcinea[/name]
[name]Ivy[/name] [name]Addison[/name] [name]Josephine[/name] would be good. Is that too long?
all the other 2mn make [name]Addison[/name] too trendy, I’ll have to see what other 1 syllable names I can come up with