Crinum x augustum

It grows under our sea-grape trees. I think it's the Queen Emma cultivar. But I couldn't identify it until it flowered.

More about coral beans.

I've done two sowings of coralbeans, the first following the vendor's directions, the second based on that experience and what I read on the net.

The vendor said to scarify the seed coat and soak 24 hours. So by golly, I scarified, with an electric sander. I think I overdid it, and damaged the cotyledons (seed leaves). So I got one plant from about 7 beans.

The second time I was far more gentle, making only a single tiny scratch through the coat. I then soaked the seeds. Within 24 hours they were swelling and the coats were loosening. After 3 days soaking, the coats were mostly off, and the tiny radicles (seed root) were swelling.

I then planted in potting compost, radicle downwards. 7 of 8 plants germinated.

This is what they look like after 3 weeks.

And this is the older plant, now doing very well.

I noticed, growing them in pot, that the roots grow rapidly downward. Even the little seedling I show above had roots down through the hole in the 4 inch pot. I expect this is because they grow in dunes and sandy soil, and need deep roots to get to the water during the dry season. In any case, if you grow coralbean, pot them in the deepest pots you can find.

I also noticed that we have an old coralbean plant already in the dunes. The dune-trimming guy apparently had his way with it, but the plant is growing back.

Erythrina herbacea (Coral Bean)

Raised this from seed, or more exactly, bean. It's supposed to grow to 15 feet, and attract hummingbirds. And it is a native Florida sand dune shrub.