Rosa 'Zlepoltwo' 

Rosa 'Zlepoltwo' Pretty Polly® White on Low irrigation in September 2021 at South Coast REC.

Summary

Pretty Polly White is a polyantha shrub similar to Pretty Polly pink but with clusters of open white rosettes covering plants beginning in April and continuing through the season. Its excellent performance on low water has earned it our Blue Ribbon award. In general, plants bloomed better in the heat and bright sun of Davis than in Irvine, with ratings peaking in May and July in Davis and June in Irvine. Spent petals were an antique white color that didn’t detract from the overall appearance of the shrub and shattered and dropped quite easily with a light brushing. The form of the shrub is quite consistently uniform as was the flowering, which, even when light, was evenly distributed over the plant, rather than being on one side or the other. This was a very appealing feature. Though older, lower leaves were showing signs of edge burn by late August and into September, good form and consistent flower coverage kept the overall appearance scores high. There were no significant differences between treatments in growth or quality ratings.

In Irvine there were more issues with foliage damage from reclaimed water and insect pressure. As previously mentioned, flowering was not as prolific as in Davis and plant consequently scored lower there, though still maintained good enough quality to be an acceptable flowering landscape plant. Since there were no differences in growth or quality ratings between treatments, we recommend the low level of irrigation in this region.

Basic Info