The propagation success I didn't expect with Cosmos
I started with one Cosmos and now have four, all from propagation. The process is straightforward once you understand allowing plants to set seed before cutting at the end of season — something I picked up from trial and error rather than any guide.
I display them in a container with a meadow mix for a balcony which shows off naturalistic aesthetic that suits modern ecological gardens at its best. seed setting and dispersal in late summer is when they're most impressive. poor germination in compacted or clay soils has been my main challenge across all of them, but it's manageable now that I know what to look for. A genuinely generous plant if you let it be.
Cosmos