In general, you should avoid planting perennials during the most extreme temperatures of the year.

This applies to both hot and cold temperatures.

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Perennial border.

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are best planted in the fall to allow plenty of time for the plant to establish before spring.

Sowing Seeds vs. Another general rule of thumb is tosow seeds in fall and plant established nursery starts in spring.

However, the optimal time to plant seeds in the garden varies based on the perennial.

Spring perennial bed.

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The same applies to spring bulbs like tulips and daffodils.

Perennials tend to be small the first year," Hackman says.

Black-eyed susans

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