@Gleni, I just did a search in the database (click on Plant Database of course, from the far right drop down custom databases menu select 'Daylilies'. Then click on the ยป Search by characteristics (height, bloom color, etc). From there I just entered Evergreen in Foliage Type and added 48 to Scape Height. It creates a nice long list just for 48 inch scaped ones. I did a search for Evergreen with 52 inch scapes and got a list of nine daylilies.