It's all about what can be grown readily in numbers and will go home with people after being seen sitting in a pot in an outlet. Ease of production, conformity to popular taste, tendency to show well in a pot (or other common means of display) - they all have to be there or an item does not remain on the market.

I'd go with Dave's call here but also add that there are many different cultivars of the Colorado Blue Spruce in addition to the straight species. You could encounter some of these at your nursery so, before you go, you might check out this reference (link) and select some from the pull down menu to brush up on possible selections. The typical Colorado Blue can get to be a big tree over time and if space is a problem in your yard, you may want to investigate dwarf or intermediate sized trees, weeping, prostrate or fastigiate forms. I'm sure you will find something to fit your site and budget. Here is a link that might be useful: Picea pungens cultivars

Hello Ilima! Thank you very much for your help. With the name you game me i could fingd the info about this tree. It is indeed Clerodendrum quadriloculare, and its common names are Starburst tree or Fireworks tree. Thank you very,very much once again! Jorge Joel... Emilia's Garden

Fraser photinia. Lack of density is due to shaded planting site. I cut one back in a similar situation some years ago and then one of the leaf spot conditions affecting these in much of the U.S. during later years got on it right afterward. And then that was all she wrote. So many of them have been spoiled by leaf spot infestations in my area now that this previously ubiquitous landscape shrub has been effectively rendered obsolete here. If/when you get it there you will probably be removing this planting anyway - meanwhile I wouldn't put any time into an attempt at renovation pruning. If you can't reduce the source of the shading just continue with maintenance pruning (to control size) or replace with shrubs that are more shade tolerant. The best time to snip back any unwanted wandering branches produced by this shrub is mid spring.