The sad story of the swan plant seedling

A few weeks ago, I planted some swan plant seeds in the hope of producing a big plant to attrach monarch butterflies to our garden. I was delighted last week to find that two of the seeds had sprouted.



So imagine my dismay when I returned to admire the seedlings a few days later to find that no trace of them remained. The soil was still quite damp so I don't think they withered away. Instead I'm blaming this little blighter...