Add dried rose petals, sugar, water and salt to a pot. DO NOT add the lemon juice yet, set that aside for later.
Stir the rose petals, sugar, water mixture to combine and moisten the rose petals, and then place the pot on the stove.
Bring the mixture to a roaring boil, and then lower the heat to a low simmer. Stir the mixture to ensure all the rose petals are moistened.
Let the syrup simmer for 10 minutes.
After 10 minutes, turn off the heat, and remove the pot from the burner. The rose petals will have soaked up much of the liquid- that's perfectly normal.
Strain the rose petals out of the syrup and then use the back of a spoon to squeeze out any excess syrup or liquid from the rose petals, and then discard the rose petals.
Add the lemon juice into the syrup and stir to combine.
Let the Homemade Rose Syrup cool on the counter for 1-2 hours, then add a lid, and place in the refrigerator for up to 3 weeks!