Boil water (I just use a small pan) and steep the lavender in it for 10 minutes (I use 2 paper tea filters to make this easy. You could use a fine sieve or other kind of tea strainer as well).

Meanwhile, juice the lemons.

Once lavender has finished steeping in the water, remove the lavender and stir in the sugar and lemon juice until sugar is dissolved.

Pour the mixture into the popsicle mold, leaving a little bit of room at the top of each compartment. You'll likely find it difficult to insert the sticks right away (especially if they're wooden sticks), so wait 2-3 hours and insert them then. Freeze popsicles for at least another 4 hours (or overnight).

To remove the popsicles from the mold, I fill the sink with hot water and dunk the frozen part in it for about 10 seconds so they release easily. I recommend storing the popsicles in a large Ziploc rather than keeping them in the mold.