Exoctics always good bet.....but only if you can buy them in cheap enough. If you've got to compete with DIY shops who can them get bulk and cheap, it's probably not going to be worth it.

We always had our in 'planters'......soiled filled wooden boxes along one wall, it kept them moist and we could display them 'banked'.

Palms, crotons...anything that looks fancy and different.

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nothing plastic about me!