Dümmen Orange displayed its Alpine Collection Fleur De Rock this year at California Spring Trials 2019. The new cold-tolerant collection is a grouping of five different series of Alpine plants such as Delosperma, Iberis, Saxifraga, and Aubrieta. Dümmen Orange released two new series of Delosperma to go with this collection. The Delosperma Rock Crystal series is super compact for growing in quarts, and the Solstice series is a medium to compact for growing in gallon pots.
Check out the video below to hear Greenhouse Grower magazine’s Contributing Allan Armitage discuss some his favorites at Dümmen Orange’s perennials section during California Spring Trials.