I don't put pernicious weeds in the compost bin, but I do put seed heads from my perennials and annuals in. Most seedheads from desirable plants are 'done' anyway here by the time I cut them back, because they tend to rot on the plants due to our weather. It's quite difficult to save seed because of that. In drier areas, it's easier. I don't really have grass seed heads though. The grass is cut often enough so it doesn't happen. If you mean ornamental grasses, I put those in the compost bin.
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
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Most seedheads from desirable plants are 'done' anyway here by the time I cut them back, because they tend to rot on the plants due to our weather. It's quite difficult to save seed because of that. In drier areas, it's easier.
I don't really have grass seed heads though. The grass is cut often enough so it doesn't happen. If you mean ornamental grasses, I put those in the compost bin.
I live in west central Scotland - not where that photo is...