jpfloors

Bromeliads would be a good choice as well as they don't deep root (other than pineapples). Just make sure they're not getting too much sun! That's what I plan on planting at the base of mine in the future! But in zones 9 and below you'd have to winter them in a green house or a sunny window as they are not very cold tollerant. Mine planted in the ground (zone 9b/10a) survived the entire winter, but we only dropped below 0'C three to four times (not consecutive nights either). So in lower zones it might be safer to keep them potted, but it's not too much of a problem to transplant and that would also give you a chance to separate the pups for next years growth!