Transplant to 50% of the plants in blossom is exactly 60 days. Ha! (I wish.) That's more like 40 to 90 days, more or less. But if we say the average of all the varieties is 60 days after transplant, then 50% of those hypothetical plants will be in blossom 8 weeks after transplant. But budding is not the same as in blossom. After the buds first appear, the stalk must elongate, which can be a week or more, plus the blossoms open gradually over time. So we can casually say that from transplant to first buds showing may be a mere 7 weeks. BUT, of that 50%, some are always earlier.
We're less than a week from July. I am never surprised to see the start of budding in July. With most varieties, the entire stalk continues to grow taller, increasing the space between leaf nodes, and the leaves themselves (other than the bottom leaf) continue to increase in size.
SUMMARY: I would just sit back, and take notes on what I see.
Bob