Tall fescue (Festuca arundinacea) varieties that have aggressive rhizome formation can have distinct advantages over varieties that do not produce rhizomes. Labarinth is a rhizomatous turf type tall fescue variety that was released in 2002.  In turf, Labarinth showed quicker recovery in traffic and divot damaged areas because of its rhizomatous habit.  Sod producers using Labarinth report accelerated sod production due to rapid knitting of turf. This study was designed to evaluate rhizome formation in Labarinth over a 10, 12 and 20 month period at two different locations (sandy loam soil site and clay loam soil site). Number of rhizomes per plant; length of rhizomes; and shoots per rhizome were recorded for space plants of nine different varieties that were frequently mowed. Two varieties, Labarinth and Torpedo, had significantly higher number of rhizomes than other varieties in the study. However at 20 months, Torpedo had significantly less rhizomes than Labarinth probably due to lower tolerance of Torpedo to frequent mowing. Overall, rhizome formation was 8 and 10 times higher in Torpedo and Labarinth respectively, than other varieties.  Labarinth and Torpedo formed significantly higher number of rhizomes in sandy loam soil site as compared to clay loam soil site. This difference was not significant in case of other varieties. Overall, higher number of plants in Labarinth (88%) formed rhizomes followed by Torpedo (77%) compared to other varieties (16-33%). Location had no influence on number of plants producing rhizomes, except Bonanza. Length of rhizomes and number of shoots per rhizome were significantly higher in Labarinth as compared to other varieties. The length of rhizomes was significantly higher in sandy loam soil location only in varieties Labarinth and Rebel Jr.