The abundance of the flowering repressor FLM-ß decreases in response to higher temperature and flowering is consequently accelerated (Figures 1B and 4E) (Lee et al., 2013; Posé et al., 2013; Lutz et al., 2015). Note, that previous studies showed an especially prominent effect of FLM in a range from 9°C to 21°C (long-day photoperiod) (Lee et al., 2013; Posé et al., 2013; Lutz et al., 2015). At the genetic level, FLM-ß abundance is triggered by the PRO2+ (purple) and/or the INT6+ (pink) haplotype and flowering time correlated to FLM-ß abundance (Figure 4E). Among the PRO2+/INT6+ combinations tested, the Col-0 (grey) reference allele (PRO2+AAAAC/INT6+AAT) showed intermediate FLM-ß levels (Figure 4E). We suggest, that changes in flowering time due to changing ambient temperature can be precisely buffered by modifying the PRO2+ and INT6+ regions, as illustrated by similar plant symbols.