Hi Diane,
Yes it’s okay to add the whole heads to the tea. Actually I prefer to add the whole head sometimes. While the central part and calyx are not as beautiful when dried, they still contain the most resin, which contain the potent anti-microbial compounds.
The best case scenario would be to work with them fresh, but dried is next. I suppose it depends on the level of brownness, that is something to determine for yourself. If you feel disappointed in the drying quality, it could be worth it to reach out to the supplier and inquire.
With warmth,
Benna