Hertia cheirifolia (syn. Othonna)

A favorite of ours from South Africa. We have this growing in front of our greenhouse and the first winter we mulched it and covered with a tarp. No damage. The second winter we just threw a tarp over it and no damage. Then finally we didn't protect it at all and there was no damage at 17F - even the flower buds were unscathed. Yellow daisy flowers are lovely over the glaucous succulent foliage.