Welsh girl names and flower names

[BananaRaces]

Hi all,
We've just found out that baby #2 is a girl (yay)! We're after a Welsh name which is easy to pronounce / spell - we live in Wales but half of the family are English. DD1s name is Catrin Rose. We'd like a flower / plant for a middle name again. Last name is close enough to "Davids" to make no difference.

First names we're considering - Bethan / Elinor / Megan / Rhiannon

Middle names we're considering - Lily / Ivy / Violet

Middle names that we can't use due to various reasons: Poppy, Holly, Daisy, Iris.

We'd love some opinions on the names we're looking at, and also any other names which you lovely lot think we should consider.

my personal favourite welsh name is Mabli
Which is the welsh version of Mabel I think it's so pretty x

Heather
Rosemary

Tesni is a beautiful name for a Spring baby. Tesni’r Gwanwyn = the first warmth of Spring.

I love Elinor or Megan as a first name
Second name Iris? Blossom?

I adore Cerys!