It is the first taste this season, and I wonder about that, too. I think you are right though, that probably any lily would be less sweet in the summer versus
late fall or winter. Earlier in this thread, we discussed this a little, and it seems that when most of us dig our lilies, that supposed temperature (about 50°F(10°C)) when sugars are produced wouldn't be happening in the soil yet.
https://garden.org/thread/view...
I have a feeling though, that that temperature is a mere guesstimate.
Also wondering if my pretreatment had any effect.