Nature names for a girl

[Tinwe]

Hi. Sorry if this has been done loads but I can't bring anything up on the search.
DH and I are looking for a name for our second DD, due any day. DD1's name begins with an H so we're trying to avoid the same initials, however our favourite name is Heather!
Please help us come up with an alternative - we're after something natural and classic but not too popular (like Lilly), too hippy/unusual (like Rain) or too retro (like Hyacinth) for example... I suppose we're picky! We quite like Amber and Poppy but neither has really shouted to us.
Any ideas?
Thanks in advance :)

What about Seren? It means Star in Welsh apparently.
I love it.

Love Hazel (but that's another h...) More trees: Aspen, Holly, Rowan, Willow, Cherry, Sitka

Stones and precious metals: Amethyst, Ruby, Topaz, Sapphire, Amber, Jade, Silver, Pearl.

Herbs and Spices: Saffron, Ginger, Rosemary, Thyme,

Flowers: Aster, Clover, Daisy, Fern, Iris, Jonquil, Lilac, Lavender, , Myrtle, Nerine, Nigella, Poppy, Veronica, Xanthe, Zinnia.

Racing I love Seren and am working on that being DD2's middle name, as we want a celtic name for that like we did for DD1.
Have spent most of the day when chatting, reading out names listed here. DH is so picky! He only told me today that he had some secret doubts about DD1s name until he got used to it after a few days and now loves it. I think it's the responsibility that. makes him waver...

Anyone suggested Eden yet?

Thanks lamb, will add it to our list of possibles...3 days to go and still no firm decision!

Isla
Iona
Skye

Dawn
Aurora
Tamar(a)
Morvern

Tansy