Correll's false dragonhead
Physostegia correllii
Last reviewed: August 2026
Correll's false dragonhead is an herbaceous perennial forb that blooms from June through September with spikes of pink tubular flowers, thriving in wet, sunny sites such as marsh edges and ditches.
Toxicity unknown
Correll's false dragonhead (Physostegia correllii) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
full sun
Water
medium
Size
24"–48" H × 12"–24" W
Bloom
Jun, Jul, Aug, Sep
Native to
LA, TX
Pollinators
bees, butterflies, hummingbirds
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An upright perennial forb with square stems and whorled spikes of tubular, lavender-pink flowers over a long summer bloom period. Spreads by rhizomes to form a colony over time and performs best in evenly moist soil, making it a good choice for a rain garden or moist border.
Growing Correll's false dragonhead
Grow Correll's false dragonhead in full sun and medium water. Mature plants reach 24 to 48 inches tall and spread 12 to 24 inches wide. Expect moderate maintenance to keep it looking intentional in a front yard.
Regional care guide
How to care for Correll's false dragonhead where it is actually grown: year-round basics plus what to do each season, region by region, with the sources for each.
Care guidance last updated: July 2026
Cross Timbers (includes Fort Worth, TX)
Year-round
Correll's false dragonhead is a Texas native perennial in the mint family that naturally grows along streams and pond edges, so it wants consistently moist soil rather than the drought-tough treatment most Texas natives get. It spreads by underground rhizomes and sends up spikes of pink purple flowers from early summer into fall.
- Plant it somewhere it gets regular water, near a downspout, a low spot, or a rain garden, not a dry bed with cacti or yuccas.
- Give it full sun to light afternoon shade. Afternoon shade helps it hold moisture during the hottest stretches.
- Expect it to spread by rhizomes into a patch a few feet wide over a couple of seasons. Set a buried edging strip or a solid bed border if you want to keep it contained.
- Stake tall stems if wind or heavy rain knocks them over, since they can reach 3 to 4 feet.
- Divide the clump every 2 to 3 years in early spring to keep it vigorous and to control how far it spreads.
A defined edge or border around the planting reads as an intentional bed rather than an escaped patch, since this plant spreads by rhizomes.
Summer
Summer is bloom season for Correll's false dragonhead, but North Texas afternoons over 100F and weeks without rain are the hardest stretch for this water loving plant, so keeping the soil consistently moist matters more here than for most native perennials.
- Water deeply 2 to 3 times a week during July and August if there is no rain, more often for plants in the sandier soils west of the metro.
- Spread 2 to 3 inches of mulch around the base to hold soil moisture and keep roots cooler.
- Deadhead spent flower spikes to encourage more blooms into September.
- Check leaves in the afternoon. If they are wilting and haven't recovered by evening, increase watering frequency rather than waiting for the next scheduled watering.
Deadheading keeps the tall flower spikes tidy and blooming instead of going to seed and flopping over, which reads better in a front bed.
Fall
Bloom continues into September before the plant fades for winter. Fall is when to do the light cleanup that keeps it from spreading further than you want.
- Let the last blooms finish through September before cutting back.
- Once foliage yellows, cut stems back to about 6 inches, typically by late October or November.
- Dig up and remove or transplant any rhizome shoots that have spread past the bed edge before the ground gets too dry to work.
- Fall is not the best planting window for this species, since it does better establishing through a full spring to summer growing season. Hold new plantings for spring if you can.
Cutting the spent stalks back after bloom keeps the bed from looking leggy or overgrown through winter.
Winter
Correll's false dragonhead dies back to the ground in winter and returns from its roots each spring. There is little to do but wait out the next North Texas cold snap.
- Leave the cut back stubble and roots undisturbed. Do not fertilize or dig during dormancy.
- Keep a layer of mulch over the root zone to help protect against the occasional severe Arctic outbreak North Texas gets some winters.
- Skip watering unless the soil has been dry for several weeks with no rain, since dormant roots need far less moisture than the actively growing plant.
- Check in February for the first new shoots at the base as the sign it's time to resume normal care.
Mulch over the dormant root zone reads as tended rather than neglected during the bare winter months.
Spring
Spring is the best time to plant new Correll's false dragonhead in North Texas, so roots have a full season to establish before summer heat arrives.
- Plant in March or April, after the mid March average last frost, into soil that stays consistently moist. In heavy black clay, plant high on a slight mound or amend for drainage so roots don't sit in standing water and rot; in the sandier soils west of the metro it dries out faster and will need water more often through its first summer.
- Water new plantings 2 to 3 times a week through spring if rainfall is light. This species does not tolerate drying out the way most Texas natives do.
- Cut back any winter damaged stems to fresh green growth once new shoots appear, typically by mid to late March.
- Watch for new rhizome shoots coming up beyond the original planting spot and pull or transplant the ones you don't want by late spring.
Fresh spring growth after cutting back winter stems reads as an actively maintained bed.
Sources: Lady Bird Johnson Wildflower Center: Physostegia correllii
Texas Blackland Prairies (includes Dallas, TX)
Year-round
Correll's false dragonhead is a Texas native perennial in the mint family that naturally grows along streams and pond edges, so it wants consistently moist soil rather than the drought-tough treatment most Texas natives get. It spreads by underground rhizomes and sends up spikes of pink purple flowers from early summer into fall.
- Plant it somewhere it gets regular water, near a downspout, a low spot, or a rain garden, not a dry bed with cacti or yuccas.
- Give it full sun to light afternoon shade. Afternoon shade helps it hold moisture during the hottest stretches.
- Expect it to spread by rhizomes into a patch a few feet wide over a couple of seasons. Set a buried edging strip or a solid bed border if you want to keep it contained.
- Stake tall stems if wind or heavy rain knocks them over, since they can reach 3 to 4 feet.
- Divide the clump every 2 to 3 years in early spring to keep it vigorous and to control how far it spreads.
A defined edge or border around the planting reads as an intentional bed rather than an escaped patch, since this plant spreads by rhizomes.
Summer
Summer is bloom season for Correll's false dragonhead, but North Texas afternoons over 100F and weeks without rain are the hardest stretch for this water loving plant, so keeping the soil consistently moist matters more here than for most native perennials.
- Water deeply 2 to 3 times a week during July and August if there is no rain, more often for plants in the sandier soils west of the metro.
- Spread 2 to 3 inches of mulch around the base to hold soil moisture and keep roots cooler.
- Deadhead spent flower spikes to encourage more blooms into September.
- Check leaves in the afternoon. If they are wilting and haven't recovered by evening, increase watering frequency rather than waiting for the next scheduled watering.
Deadheading keeps the tall flower spikes tidy and blooming instead of going to seed and flopping over, which reads better in a front bed.
Fall
Bloom continues into September before the plant fades for winter. Fall is when to do the light cleanup that keeps it from spreading further than you want.
- Let the last blooms finish through September before cutting back.
- Once foliage yellows, cut stems back to about 6 inches, typically by late October or November.
- Dig up and remove or transplant any rhizome shoots that have spread past the bed edge before the ground gets too dry to work.
- Fall is not the best planting window for this species, since it does better establishing through a full spring to summer growing season. Hold new plantings for spring if you can.
Cutting the spent stalks back after bloom keeps the bed from looking leggy or overgrown through winter.
Winter
Correll's false dragonhead dies back to the ground in winter and returns from its roots each spring. There is little to do but wait out the next North Texas cold snap.
- Leave the cut back stubble and roots undisturbed. Do not fertilize or dig during dormancy.
- Keep a layer of mulch over the root zone to help protect against the occasional severe Arctic outbreak North Texas gets some winters.
- Skip watering unless the soil has been dry for several weeks with no rain, since dormant roots need far less moisture than the actively growing plant.
- Check in February for the first new shoots at the base as the sign it's time to resume normal care.
Mulch over the dormant root zone reads as tended rather than neglected during the bare winter months.
Spring
Spring is the best time to plant new Correll's false dragonhead in North Texas, so roots have a full season to establish before summer heat arrives.
- Plant in March or April, after the mid March average last frost, into soil that stays consistently moist. In heavy black clay, plant high on a slight mound or amend for drainage so roots don't sit in standing water and rot; in the sandier soils west of the metro it dries out faster and will need water more often through its first summer.
- Water new plantings 2 to 3 times a week through spring if rainfall is light. This species does not tolerate drying out the way most Texas natives do.
- Cut back any winter damaged stems to fresh green growth once new shoots appear, typically by mid to late March.
- Watch for new rhizome shoots coming up beyond the original planting spot and pull or transplant the ones you don't want by late spring.
Fresh spring growth after cutting back winter stems reads as an actively maintained bed.
Sources: Lady Bird Johnson Wildflower Center: Physostegia correllii
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In an HOA neighborhood
Correll's false dragonhead is an HOA-friendly choice. Maintenance level: moderate. Tidiness: 3 out of 5.
Works well in: mid zone, backyard only.
- spreads by rhizomes and can naturalize aggressively if not contained
Wildlife value
Long-blooming flower spikes attract bees, butterflies, and hummingbirds through the summer.
Common questions
- When does Correll's false dragonhead bloom?
- It blooms from June through September, sending up tall spikes of pink, tubular flowers along its stem.
- What pollinators visit Correll's false dragonhead?
- Bees, butterflies, and hummingbirds regularly visit the flowers for nectar during the summer bloom period.
- What growing conditions does this plant prefer?
- It does best in full sun with medium to consistently moist soil, and it can handle wetter sites such as ditches or marsh margins.
- Is Correll's false dragonhead a woody plant?
- No, it is a herbaceous forb that dies back to the ground each year and regrows from its base in spring.
- Is Correll's false dragonhead HOA-friendly?
- Correll's false dragonhead is generally an HOA-friendly choice in the right placement, with moderate maintenance.
These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.
Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
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