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Calibrachoa on California Hillside? Heat Will Stop Blooms

Simi Valley, CA gardener wants low, colorful hillside plant. Considered calibrachoa (million bells).

Calibrachoa Limitations

Hardy to 20°F but fails in heat—stops blooming, high heat kills.
Not widely used in area—usually a sign of poor adaptation.

Better Hillside Options

Ice plant (Delosperma): Low, heat-tolerant, colorful.
Observe neighbors: plants thriving locally are your best bets.

If nobody grows it nearby, there's usually a reason.

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