got a weird one. what could send a photo into flower in mid-june?

Looked at your diary for pics and background. We’re in very similar climates and latitudes-I’m in VT. Probably within seconds of daylight hours. I had a couple of plants I started in April indoors, then moved outside on a stretch of beautiful weather in mid May. The daylight was still short enough outside that they started to flower. Then they revegged and eventually flipped back to flower again later in the summer. I suspect that may be what happened with your white truffle? When did you start seeing bud sites developing on the branch tips? Also, are you seeing any new leaf growth with 1 or 3 fingers?

When you see Calyx, its normal! After 7-9 Weeks the photoperiods show you the gender characteristics. Thin Hairs (girl) or small Bananas (boys).

A photoperiod plant can go into flower anytime it receives a long enough, uninterrupted dark cycle. The exact length varies per plant to some extent. Generally 10+ hours is what you need. Maybe, some oddball needs less? some definitely need more than 10h. ~12 hours is used indoors because it covers all the bases. Outdoors, you may get a range of time in which plants flip to flower, and that is on top of variances in overall flower length. Preflowers will grow on a sexually mature plant even before you get to flower. So, if it's just a single calyx forming at the base of each branch, no worries. i'm assuming you live in a similar lattitude as me, but that may not be the case.. if your longest day of the year is in june, probably safe to say you are not in flower, yet. you can see preflowers pretty early, but usually 6-8 weeks old you'll see them even if in vege phase. As long as you don't see tufts of white haris forming at terminal buds and each node, you are fine.

Once a photoperiod plant is old enough (8-12 weeks), it will show signs of sexual maturity by producing "pre-flowers" at the stem/branch junction. These "pre-flowers" are just an indication that the plant is mature enough to grow flowers...........they are not necessarily a sign that actual flowering is starting. These "pre-flowers" can show up as early as 6-8 weeks before flowering commences. Unless you have small tufts of pistils forming at the end of the branches, flowering is not actually happening, just the signs of maturity appearing. Normally, a photoperiod plant will not start actual flower development until August outdoors. Next time, post some pictures with your question............it make giving help much more accurate.

Bringing out a few white hairs on the plants nodes is a pretty common behaviour on full season-outdoor plants. If you just spotted a few ones of these - that does not mean that she is already flowering. If there are real buds forming, I would be pretty shure that some ruderalis genetics slipped into the family-tree of your seeds.