Writing my first play, props.

What is the context of the situation?
Why do they (she/he?) require flowers?

If there is a narrative reason for the character to have a prop, then the nature of the prop will be dictated by the reason for the prop. If there is no narrative reason for the prop, then you're going against the spirit of Chekhov and also possibly going to create issues for the director and/or actor. (If the actor or director cannot see a need for the bunch of flowers, and the bunch of flowers is only written in stage directions and never referenced in the dialogue, they could very reasonably decide not to have it. Even if you write it into the dialogue, they're still probably going to want to know *why*, and if you don't have any reason beyond "I decided it was a good idea for one of the characters ... to have a prop" then that's just kinda weird.)

Props aren't arbitrary, they tend to serve a purpose. This character is a murderer, so they need to carry around a weapon. That character is an alcoholic so will need a whiskey glass and decanter nearby in most of their scenes. One character is a baker and regularly asks other characters to try the cake that she has made, perhaps to signify the baker's insecurity in her own ability or maybe because - surprise! - the baker is *also* a murderer and has poisoned this particular cake, but either way, you're probably going to want a cake.

Think about what you want the prop *for*, and if there isn't really a reason, then the play will probably be just fine without it.

What kind of flowers? Different species signify different things. Real or fake? Native or exotic? Are they central to the plot or just an affectation? Unless you're doing a bio of Dame Edna Everage flowers are unlikely to be vital to your play.