I have two pots of pineapple lilies – Eucomis – one has green leaves and the other purplish leaves. I love these South African natives; their common name comes from the tuft of tiny leaves that appear at the top of each flower stalk which resembles green pineapple leaves. I purchased a single bulb of each variety about 20 years ago, and they continue to delight. The bulbs have multiplied and I’ve transplanted them three or four times each and now there are a half dozen bulbs in each pot. The thing is, I can never predict when they’ll bloom! The purple one sent up a single stalk early last fall – I cut it when it threatened to topple the whole pot, and stuck it in a vase with some zinnias – you can see it here.
They stay in a sunny window indoors most of the year, although I like to bring them outside, onto the mostly shaded back porch, for a few months in the summer. They can continue to produce leaves year around if you like or, as I did with the purple one that bloomed in October, you can treat them in a similar way as an Amaryllis bulb by letting them go dormant (stop watering, cut off the leaves and bring it to a dark cool spot) until you want new growth.
The green one, though, hasn’t gone dormant for many years now; nor has it flowered. I suspect that may be because it didn’t get enough sunlight. In any case, I put it in my sunniest window last fall and it rewarded me with three large flower stalks. When their size because a nuisance I cut them off and put them in a simple vase – much easier to admire now! The individual flowers open from bottom to top, last a LONG time and, even when the pink petals fade to green, have an interesting look.