I know that U. subulata is considered a weed, but I had to get some to grow in my bog since it's a native CP. I have a few questions about it, as I have little-to-no knowledge of Utricularia.
- Does its growth usually go in waves, and if so, are these usually at certain times of the year? I placed a few stalks in the bog in March and only recently have they come to life, expanding to an area of about 10 cm x 10 cm.
- How cold hardy is it? I live in zone 7b (5-10 degrees F).
- In March, the few stalks all had a flower or two, but now they form buds which never open. I have had one full flower this fall. I know some Utricularia form closed and open flowers...are the closed more common on U. subulata?
Of course, if you know anything else about the plant that I should know, please tell me.