Well, it's a beautiful thing until the slugs get it, anyway.
However beautiful an aster may be, though, you wouldn't want one attached to your rear end.
Aster as a separate word is the Latin for star, which is rather nice. If, however, aster is stuck onto the back of another word it means poor imitation of a.
The commonest example is poetaster, which means a poor imitation of a poet. But, just to prove that lovers of long words aren't necessarily the kindest people, also to be found are medicasters, grammaticasters (ouch!) politicasters, witticasters (people who think they're funny), philosophasters, criticasters, and theologasters.
I don't think there's a word artaster, but surely, surely that should be the commonest word of them all.
Word To Understand Today: one ending in aster.
Even suffixes are subject to fashion. Nowadays every scandal is something-gate, and in the early 1800s there was a trend for conflicts to be something-loo. Aster as a suffix got fashionable in the 1600s. Milton used politicaster, and the playwrights Ben Jonson, John Marston, and Thomas Dekker managed to have a long quarrel that ended in the production of Jonson's play The Poetaster in 1601.