Cirrus Dusty Miller is a Mediterranean annual grown for its strikingly silvery foliage, widely praised as the most silver of all Dusty Miller varieties. This cultivar of Senecio cineraria reaches just 8-10 inches tall with a tidy, upright habit, making it exceptionally useful for edging, containers, and dry garden spots. Hardy in zones 8-11, it matures in 84-89 days and thrives in full sun with minimal water, earning its reputation as a resilient garden workhorse for moderate to dry climates across the country.
Full Sun
Low
8-11
10in H x ?in W
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Moderate
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Cirrus earns its reputation through unusually vigorous growth paired with foliage so luminously silver it becomes a garden highlight rather than a background player. The pelleted seeds germinate reliably at 65-75°F, and established plants shrug off drought and heat with ease. Its compact, upright form and restrained height make it one of the most controllable Dusty Miller varieties for both container work and landscape edging, without the sprawling character that can overwhelm smaller garden spaces.
Cirrus Dusty Miller is grown primarily as an ornamental foliage plant, valued for its silvery leaves that brighten garden beds, containers, and mixed plantings. Its low, compact form makes it particularly useful as an edging plant along borders or in front of darker-leaved perennials, where its color provides striking contrast. The tidy, upright growth habit also makes it a reliable choice for container gardening, where its fine-textured, reflective foliage creates visual interest throughout the season.
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Start seeds indoors 80-89 days before your last spring frost date. Maintain soil temperature between 65-75°F for reliable germination. Use pelleted seeds for easier, more precise sowing. Transplant seedlings outdoors only after all frost danger has passed.
Transplant hardened-off seedlings outdoors once all danger of frost has passed. Space plants 10 inches apart, with 24 inches between rows if planting in cultivated beds. Full sun location ensures the most vibrant silver foliage.
Pinch back young plants early in the season to encourage branching and a fuller, more compact form. Remove any leggy or overgrown stems to maintain the tidy, upright growth habit. Light deadheading of any flower spikes will redirect energy to foliage production and keep plants looking dense and ornamental throughout the season.
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