Echinacea purpurea (Purple Coneflower)

Coneflowers are one of the best perennials you can grow in Brenham and Washington County (Zone 8a/8b). They thrive in Texas heat, tolerate drought, and attract pollinators all summer.

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March is an excellent time to plant coneflowers in Brenham.

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Sun

• Full sun (6+ hours daily) is ideal

• They’ll tolerate light afternoon shade, but bloom best in full sun​

Soil

• Well-draining soil is key

• They tolerate clay better than many perennials, but raised beds or amended soil improve performance

• Avoid constantly wet spots​

Water

• Water regularly for the first 6–8 weeks

• After establishment, they’re fairly drought tolerant

• Overwatering is more harmful than underwatering​

Bloom Details

• Colors: Classic purple, plus white, pink, coral, orange, and yellow varieties

• Height: 18–36 inches depending on variety

• Spread: 18–24 inches

• Bloom time: May–September in Texas (sometimes longer)

Deadheading (removing spent blooms) encourages more flowers, but leaving seed heads in fall benefits birds and adds winter interest.​

Maintenance

• Cut back in late winter (January/February) before new growth starts

• Divide every 3–4 years if clumps get crowded

• Fertilizer: Minimal needed; too much causes floppy stems​​

Wildlife Benefits

Coneflowers are excellent for:

• Monarchs

• Native bees

• Swallowtail butterflies

• Finches (seed heads in fall)

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