At the moment I am really enjoying growing plants from seed for my balcony. Most of the seedlings are doing well, but I have some science based queries and observations.
One of the sunflowers has three leaves instead of two, is this a cell division thing?
Why does the nasturtium not produce the plain 'baby leaves'?
Why do plants make plain 'baby leaves' before they make their distinctive leaves?
Why are seeds such different sizes, from giant sunflowers down to speck like mint?
Answers appreciated for budding (groans) plant scientist.