lilies are one of the easiest plants to grow ever! lucky for you, your "lack of attention" as you say, is not a big deal. haha! they don't need much attention to do well. but they do need a little in order to really thrive however. right now is the PERFECT time to give them a small shot of slow release fertilizer. an organic 5-10-10 bulb/flower food will work wonders. im going to assume they're still in the same pot...? leave them be if they are- they'll be fine. but if you're looking to be more "involved" with your lilies then might I suggest moving them to a larger pot in the fall. judging by the size of your pot id say two tablespoons of fertilizer worked into the top part of the soil would be good. once all the flowers have fallen off in late july is a good time to give them another two tablespoons of fertilizer and 1/2 cup of alfalfa meal, again, worked into the top part of the soil- and give them all the sun exposure you can give them! cut the small individual flower stems off (not to be confused with the main stems), so the plant doesn't waste energy producing seeds. you want that energy to go into storage for next years flowers. let the stems die back on their own. they'll continue to manufacture food throughout the rest of the summer and early fall. if you choose to replant them the best time is once the stems have turned brown and died back. next years blooms should be amazing!
