Argyranthemum foeniculaceum grows naturally on dry cliffs and in rocky crevices of the Canary Islands and North Africa, which tells you most of what you need to know about its garden preferences: full sun, sharp drainage, and enough air movement to keep humidity low. The silver-gray foliage has a fine, slightly ferny texture, and the white daisy flowers rise above it on branching stems from two to three feet, forming what amounts to a soft luminous cloud. In humid conditions the plant struggles; in dry, bright ones it excels.

In temperate gardens outside zones 8 to 11 it functions as an annual, though in mild coastal climates it may persist as a short-lived perennial. Removing spent flowers extends the bloom period, and a light prune after flowering is complete keeps the plant tidy and encourages fresh growth. In the warmest parts of its range it has escaped cultivation and naturalized in ways that compete with native plants, a tendency worth noting for gardeners in those regions. Aphids and leaf-mining sawflies are the most common pest problems; poor drainage invites fungal rot at the root.