Calendula/Pot Marigold ~ Calendula Officianalis
Image by: wintersown
Calendula is an annual flower that has been grown in gardens since medieval times. It has orange or yellow flowers which can be single to fully double. Many cultivars are available.
Seeds are ornate and collection is easy. The flower withers and drops away and the seed heads develop atop the stem. They are not fast to develop so patience is needed. The seeds are usually curved like the letter "C" and can have a ridge of bumps on their convex edge. They are unusual in that one seed head will produce seeds of differing sizes and curvatures.
Collection is easy. Wait for the seeds to finish maturing, they will turn a dull greyish-brown. To remove a seed head just clasp the seed head at its base and pull it up off the stem. Crumble the head onto a plate and allow the seeds to dry for several more days before packing. The seeds are heavy enough that a few good puffs will blow away just the chaff.