For quite a few years I had a small clump of Snake's Head Fritillary growing in the rockery. Suddenly last year they failed to appear and seem to have vanished without trace. About the same time a white Fritillary appeared out of nowhere in the front garden:
Now it has been joined by some Snake's Head variety:
Neither of which have I planted. It is possible mice have been burrowing under the rockery and eaten the bulbs or they may have been eaten by Scarlet Lily Beetles which I have seen in the garden in the past. As for the new ones in the front garden - I can only think that birds have self sown them.
Pollen gathering spiders
3 hours ago