Today is an exciting day!
Hopefully you have got what you need to plant your sunflower seeds today...
Watch this video for some instructions and then get planting!
http://www.landscore.tv/watch.php?vid=7850290a1
Interesting top tip
I have read on several different gardening websites and blogs, that a way to get your seeds to germinate (sprout) faster is to soak them in water for 2-12 hours (opinions on time varies!) before planting...might be worth a go.
Have fun!