I did cosmos last year in early April in the greenhouse, this year since moving house I have had other projects going on in new.garden I've just left it, forgot and now I've read it's to late to do them inside in greenhouse and that I should just direct sow in may, is this right? If so I will have to get protection for slugs in the beds that the seeds will be planted
Any advice on this and do they do just as well being direct sown?