| Hostaname | RG | SZ | Leaf color | P | F | Origin |
| H. 'Quaker Lady' H. Sugita/P. Ruh 1999 | R | | goy | PRB | | kiyosumiensis x pycnophylla |
| H. 'Qualifying Queen' H. Sugita/P. Ruh 1999 | R | | gr | | | kiyosumiensis x pycnophylla |
| H. 'Queen Josephine' Bob Kuk 1991 | R | SM | dgr,(y>cr)e | | | 'Josephine' sport |
| H. 'Queen of Hearts' Robert P. Savory 1983 | R | L | gr,we | | | (x sieboldiana) sport |
| H. 'Queen of Islip' James Goffery 1990 | R | L | ygr,ble | | | 'Frances Williams' sport |
| H. 'Queen of the Hill' E. Elslager 2005 | R | | dgr,str,lgr,y | | | (x 'Galaxy') seedling |
| H. 'Queen of the Seas' Mildred Seaver 2001 | R | | blgr | | | unknown |
| H. 'Quest' Alex Malloy 2004 | R | | | | | unknown |
| H. 'Question Mark' P. Ruh 1999 | R | SM | dgr,cre | | | unknown |
| H. 'Queue' F. Nyikos 2005 | R | S | gagr | | | venusta x 'Teaspoon' |
| H. 'Quicksilver' R. Herold 2000 | R | | blgr,crwe | | | 'Dark Star' x 'Elatior' |
| H. 'Quiet Water Disturbed' F. Nyikos 2002 | R | | dgr | | | unknown |
| H. 'Quilted Cup' Eldren W. Minks 1980 | R | M | blgr | | | 'Tokudama' x 'Crinkle Cup' |
| H. 'Quilted Hearts' Marjorie Soules 1989 | R | XL | dgr | | | sieboldiana hybrid |
| H. 'Quilted Skies' Marjorie Soules 1985 | R | XL | sibl | | | sieboldiana x 'Frances Williams' |
| H. 'Quilting Bee' Russ O'Harra/Russ O'Harra Hosta Society 1999 | R | SM | dgr | | | unknown |
| H. 'Quilting Party' Lucille Simpers 1980 | R | L | gr | | | 'Crispula' hybrid |
| H. 'Quinnipiac' Alex Malloy/P. Bennerup 2004 | R | | bl,we | | | 'Blue Cadet' sport |