The Red Naomi! rose crop had a warm and difficult summer. Moreover, part of the crop was cleared in April and replaced by Avalanche+, which meant that testers had to rebalance the crops in an area where young and older crops stand side by side. "The number of branches per square meter was very high last summer, but the branch quality was insufficient," says researcher Arie de Gelder of Wageningen University & Research. "The new spectrum has a good effect on the leaf quality, the spination and bud size," he added. Growers who regularly visit this trial are also satisfied with the condition of the crop.