Yes:
Agave - middle name, works because it's close to
Agape but too "foody" for a first name
Aristea - middle name. nn
Ari or
Tea, but too 'aristocratic' for a first name
Begonia - middle name, not super attractive but very recognizable as a flower and would be good with a sort of quirky vintage first name
Calliandra - nn
Callie,
Andra Caspia - nn
Cas,
CassieCassiope - nn
Cass,
Cassie Celosia - middle name
Hedera - nn
Hedy?
Honesty - middle name, but people would just think it's a virtue name
Ilima
Jarrah
Liriope - nn Lira
Lycaste - nn Lyca ?
Neillia - nn
Lia; also works if it's the granddaughter of a
Neil Nicandra - nn Nica,
Nicky,
Andra; also works as granddaughter of a
Nicholas,
Nicole, etc.
Silene - middle name
Tilia - I'd much prefer if everyone who liked Tilly/Tillie used this instead!
No:
Drosera - reminds me of Drosophila / flies. I know Drosos is "dew" but to me it's all fly lol
Passiflora - maybe this would work, nn
Flora, but the word 'Pass' is telling me no
Phlox - not for a human, but I'd use this for a male cat
Salvia - people would just think of Salvia divinorum