Conjoined

Your Yin, my Yang
Entwined twins
Two halves of one whole

A seed, sprouting, reaches for the skies
To die back
Return to the soil.*

*This only really works with your Annuals. With your Hardy Perrenials, the whole Cycle of Life and Death, birth and Renewal, doesn't really work. It's a bit of a bugger having to add these footnotes but poetry is a bit like cookery - if you don't have a few "Warning, may contain nuts" scattered around, you are liable to get sued faster than you can say Iambic Pentameter... It's Artistic Correctness gone Mad.