The Best Time to Plant Flowers in Ohio

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Plants flowers in Ohio after the threat of frost has passed.
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Ohio's hardiness zone 5 climate makes for an ideal three-season growing span. Depending on the type of flowers, plant between the late May to mid-October, before the first frost. Check the USDA hardiness map for Ohio's frost dates.

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Bulbs

Tulips and bulbs are best planted in masses for a more natural look.
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Spring bulbs are best planted in the early fall. Follow your variety's particular planting instructions for better results.

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Annuals

Pansies look great in the spring—or added to a fall garden since they prefer cooler temperatures.
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Start annuals indoors from seed as early as late March, depending on variety. Cool-weather annuals such as snapdragons, pansies, violas and johnny-jump-ups can sustain frosty nights, but other annuals should not be planted until after the threat of frost has passed in late May in Ohio.

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Perennials

Perennials such as Rudbeckia need divided in early spring, giving you new clumps of plants every three years.
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Most perennial plants can be planted at any time after the last frost until a few weeks before the first fall frost. Follow your flowers' planting instructions for a garden full of blooms.

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