"There fir cones, pine cones, nuts and seed pods may all be gathered up and dried .... I collect anything with a pretty colour and shape, even skeleton leaves .... Bark from trees absorbs scent well .... Hedge clippings from box or privet may be made into a bunch .... In the autumn, when the hydrangeas change colour, they should be cut before they are full out .... When all the components have been dried they may be mixed together into a large bowl. Pot-pourri will have an autumnal scent of its own but a few drops of essential oil may be added, according to taste."
Later I'll go in the pasture and garden and see what else I find. We have many pine trees, but their cones are too large. I'll let you know what I find out there. I'm coming down with a cold today, so not feeling the best. I've been spraying saline up my nose and gargling with salt water too. Resting inside and drinking lemon juice and honey in hot water.
Update: My stroll around the farm lot produced more pot-pourri hopefuls:
While in the garden I tugged a massive basil plant from the ground with both hands. It's drying on the front porch to provide us with winter herbs.
The page fell open to "plantain," which I thought was nice. Here are some I started yesterday: