I can help you on 2 of them:

Tabernaemontana holstii is also called T. pachysiphon. It has larger leaves, and it's flowers have 5 strap, crinkled petals and it's fragrant. to look best, no more that partial sun (dapple sun through a high pine tree canopy is good), and it like fertile and moist soil (so do use mulch!) A slightly acidic soil is better as it will prevent the leaves from slightly yellowing, i use the good palm fertilizer to make sure there's always ample micro nutirnets for it.

Fagraea berteriana is known as Pua Kenikeni. It can handle full sun, better with relief from mid summer sun in afternoon! and make sure has enough soil moisture. It may get rather large for a shrub (upwards of 8-10') kinda rounded inshape, but still with floppy branches, flowers are fragrant too.

I noticed too that you're in zone 9. Make sure you give both these plants a protected spot, as I know they won't handle a freeze well--heck maybe not even 33 degrees.

I bet you got 'em from either Joe Fondeur or Sid Gardino. Ditto what Poiu said.

Jerry

I live in 9b or 10a and I live on a small pond so that can help a little with the weather.

I am going to keep the Desmos Chinensis and the Fragraea berteriana in a pot so I can bring them in if I need to.

The Tabermontana holstii I will keep in a pot until it gets a little bigger- unless you think it would do better in the ground.

The Randia Formosa I would like to put in the ground. It is in a 3 gallon pot now and they told me it needs to go in the ground because it is to big for the pot it is in now.The Randia is also covered in fruit right now and I would like to try them but they are not ripe yet. Do you think if I planted them that they would drop their fruit?

Yes, I got them from Sid Gardino. I have got alot of plants from him and they have always done great!

Tabernaemontanas make great plants for larger containers. YOu can perfec their pH and moisture conditions while giving them the perfect spot for light and air cirulcation. They will not get out of hand in a patio container--say 25 gallon or larger.

Let us know how the Randia tastes like!!

Let us know how the Randia tastes like!!