Botanical name: Euphorbia marginata

Botanical name: Euphorbia marginata
Attributes: Snow-on-the-mountain is a self-sowing annual that is oblivious to heat and drought. This wildflower hails not from the mountains but from the American Great Plains, including Kansas. It is related to the poinsettia, so its beauty lies in its white-margined bracts, which adorn the tiny flowers at the top of each stem. The bracts remain colorful for an extended period.
Bloom color: White
Bloom time: Late summer
Culture: Purchase packets of snow-on-the-mountain seed whenever they are available and sow them after danger of frost is past in late April or early May. The plant prefers average soil in full sun where mulch is sparse. Little or no watering is required for the plants to thrive. Once plants have set seed you can pick the seed and save for next year or allow the plants to self sow. They will not self sow in heavy mulch but can reseed abundantly in bare soil, where some thinning of seedlings is necessary.
Landscaping tips: This bright, bold annual reseeds reliably. It is a wonderful component in a perennial border, where it looks great with Joe Pyeweed, Sweet coneflowers, Lemon Queen sunflowers, butterfly bush and ornamental grasses. It also looks great interspersed in beds of ornamental grasses or in prairie plantings.
Cost: Snow-on-the-mountain seed packets can be purchased for about $3.
Source: Powell Gardens (

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