Could you explain the process?

Or possible give us a couple tips.....

i haven't tried but mcsquared told me that after alot of trials he never got it too root from cutting. I would maybe try the layering i think its called . Just bend a branch over and into a pot. Cover with soil and in a few months or when you see new shoots coming out just cut the branch and seperate from the mother plant . One thing i hear with hardwood cuttings is it helps to gently chew on bark for the last few inches maybe up to and including the lowest node or two nodes.

Well, I would directly tell ya, but I am kinda hesitant only because that is more of a trade secret that most propagators had to learn the hard way(Including Us). I will tell ya that if you know how to root any hardwood shrub, then you can do this one. Air layering or layering will also work, albiet more time consuming and not as fast. I do not know about the chewing of the tip of the plant, but hey, if it works for some, I say try it out. I would personally just plant the seed and wait a year for them to reach maturity. This is much easier in the sense of the amount of plants you get are tremendous, and you can then plant them all into larger pots as they get big. Just my two cents.

I found that seeds take a bit to germinate, and take awhile before taking off. I have some, with low umidity, that have been under a 400W MH and still have not gained their second set of leaves. I'm sure, though, that they will take off soon. Just check Dergheist's beautiful plants to see how quickly they grow

Yeah, it takes a long time for them to really start growing. It took months for me.

I've had much success propagating my Hemia. The method I used is quite simple, it's not the easiest physical work though!
The trick is to remove the plant from it's pot and divide the root ball.
I divided mine into four cuttings and all four survived with minimal effort. all I did after potting two and planting two in the ground was water the crap outta them. They looked like they were going to die for about 2 weeks but they came right back and are quite healthy now.
I'm telling you, these plants are tough... They are hard kill. I butchered mine with a shovel to divide the root mass. I only meant to divide it in half but it ended up being quartered! I didn't think the smallest division would survive; much to my surprise it is alive and thriving!
I've starved my Hemia and dehydrated it in the past. I had it planted in the ground and moved to a new place so I dug it up and potted it and took it with me. When it was planted in the ground it got razed to the ground by a mower and came right back even thicker, and lusher than before!
Needless to say, Hemia is tough. Don't worry about your root cuttings surviving and don't worry about cold weather. They'll survive it for sure!

edit: Of course you will want to use this method of propagation with a mature shrub. Mine was about 3-4 yrs. old.
Now that I think about it when I got my Hemia from my friend it was a root cutting that looked completely dead. I just watered the living crap outta her and she came to life within a week or so,,,

I had an easy time of propagating this plant: just let the mother plant grow. The seeds spread out all over the place and little plants will sprout up in no time, simply dig them up and pot them! I could see this plant being invasive in some climates.

My Hemia is doing great but new growth has a bright red color to it. I've been fertilizing it regularly for the past couple months and its been fine. Any help?

The red sometimes occurs from too much nutrients. Try and lay off the ferts and see if that does not help. This plant is very hardy, so this is not too much of a concern and it will tolerate over fertillizing.

I also have a couple heimia bushes. The hardest part was getting them started from the tiny seed. Once established, they seem pretty durable and resilient. I have one in a big pot and the other in the ground. The one in the ground died back some this winter, but has rebounded and is loaded with flowers. Haven't made tea yet. So many plants, so little time.

I harvested somewhere close to 5 billion seeds from my 2 plants. haha.

I recently bought an H. salicifolia and H. myrtifolia to add to my garden. They are LOVING the sunshine and rain here in central florida!

I was wondering if anyone has any opinions on differences, other than height, of the two.