For my then-new 10 gallon tank, back in September I got PetCo's mondo grass (Ophiopogon japonica), amazon sword, and java fern. I found out the mondo grass is terrestrial, so after overnighting it in the aquarium, I stuck it in a pot with some cacti; it will go out in the sun in the spring. The amazon sword was actually easily divided into two and they are still going strong; one even put out a runner with a baby on it not long after being planted. The baby is now in another container (I put all the swords in glass "pots" in the aquarium to contain the roots). The java fern I tied (using a strand of dental floss) to a craggy rock and within a few weeks it was having babies, some of which are now growing in another tank. So two of the three buys worked out fine, and maybe the mondo grass will, too.