Like many gardeners, I am always keen to get more plants for free. Therefore I like plants that self-propagate easily - within reason! Not all prolific self-propagators are welcome. For instance, I still keep finding little seedlings of Golden Feverfew, which I have not consciously grown in my garden for at least 10 years.
This is a Pulmonaria (Lungwort) growing at the base of my Cherry tree. It arrived here of its own volition, and is evidently planning to stay.
And not just to stay, but also to colonise! Just look at the number of little seedlings in the shingle surrounding it:
Much as I like Pulmonaria, most of those will have to go!
The Japanese Anemone "September Charm" is equally bent on world domination:
It spreads rapidly via underground roots, sending up a new plantlet every so often, just like the Strawberry:
All along the edge of the border there are little Anemone plants. I have pulled up any that have made it out into the shingle. Enough is enough!
Just near the Anemone is my clump of Wild Garlic, which is also enthusiastic - perhaps TOO enthusiastic!
It's reasonably under control at present, but I have already noticed bits of it appearing at the other side of the garden. Presumably seeds get distributed by the wind...
This next plant however is one which I am actively encouraging to propagate. It is the Snakeshead Fritillary.
It grows easily from seed, and the tall flower-stems assist in spreading the seed afar. Look at this little line of Fritillary seedlings next to the border edging:
The flowers are only at the bud stage right now, but you can already see their mottled colours beginning to emerge.
Here's another vigorous self-seeder for you - the Red-veined Sorrel:
It looks pretty (as well as being edible), but once you introduce it into your garden it will be with you for ever!