Flame Acanthus

Year-round

Flame acanthus, also called hummingbird bush, is a Texas native shrub from south-central Texas and the southern Edwards Plateau into northern Mexico. That is south and west of Fort Worth, so it is not documented as growing wild in the Cross Timbers area, but it is widely planted and does well in North Texas landscapes, including as far north as Dallas. It wants full sun, tolerates clay soil, and needs very little water once it is established. Its red-orange tubular flowers are a strong draw for hummingbirds from summer into fall.

• Plant in full sun. It flowers best and stays compact with at least six hours of direct sun a day.
• It adapts to Fort Worth's clay soils and to sandier soil in the Cross Timbers, as long as drainage is decent.
• Water regularly the first growing season to help roots establish, then cut back. Once established it handles Fort Worth's hot, dry summer stretches with little supplemental water.
• Give it room. It grows to about 4 to 5 feet tall and wide and has an informal, spreading shape rather than a tight, tidy one.

Fall

Flame acanthus keeps blooming into fall in Fort Worth, often the showiest stretch of its year, before the first freeze ends the growing season.

• Let it keep blooming. Fall color continues into October or November most years and still draws late-season hummingbirds moving through North Texas.
• Do not prune in fall. Any cutback now removes wood that would otherwise carry the last blooms of the year, and pruning also encourages tender new growth right before freeze risk arrives.
• Cross Timbers winters bring real freezes, typically starting by mid to late November in the Fort Worth area, so stop fertilizing by late summer to avoid pushing soft new growth into fall.
• Leave fallen leaves and stems in place through fall rather than cutting the plant back. The exfoliating bark and structure still add some winter interest.

Winter

Winter freezes in Fort Worth commonly kill flame acanthus back to the ground, and that is normal, not a sign the shrub is dead. The root system is hardy through the area's typical cold snaps.

• Do not pull out a flame acanthus just because it looks black and bare after a freeze. Wait for it to resprout from the base once temperatures warm in spring.
• A layer of mulch over the root zone before the coldest part of winter helps protect the roots through hard freezes.
• Hold off on any cleanup pruning until late winter or early spring, right before new growth starts, rather than cutting back the frozen top growth right after a freeze.
• New growth typically returns by mid to late spring, and the plant is late to leaf out even then, so give it time before assuming it did not survive.

A freeze-killed flame acanthus looks dead and twiggy for a few months every winter. Leaving it in place until spring, rather than digging it out, is the normal care for this plant, not neglect.

Spring

Spring is the main pruning window for flame acanthus in Fort Worth, and it is also a fine time to plant. The shrub is slow to leaf out, so do not assume a bare plant in early spring is dead.

• Cut the whole plant back by about a third to a half in late February or early March, before new growth starts. This keeps it dense and full of blooms instead of leggy.
• If a hard freeze killed it to the ground over winter, wait for new shoots at the base before you decide whether to also trim away the dead top growth.
• Plant new flame acanthus after the last frost, usually by mid to late March in the Fort Worth area, so roots have the growing season ahead to establish.
• Water new plantings well and check soil moisture through spring while roots are still shallow.

Summer

Summer is flame acanthus at its best in Fort Worth. It blooms from around June into fall, shrugs off the region's heat and dry stretches once established, and pulls in hummingbirds through the hottest months.

• Established plants need little to no supplemental water during a normal Fort Worth summer. Deep, occasional watering during an extended dry spell is enough.
• Expect steady red-orange blooms through summer. This is the main hummingbird season for the plant.
• No summer pruning is needed. Cutting it back now removes the flowers that are doing the work of attracting hummingbirds.
• It handles reflected heat from driveways, walls, and west-facing beds better than most flowering shrubs, which makes it a good pick for a hot front yard spot.

Year-round

Flame acanthus is a tough, low water shrub that dies back in cold and blooms orange from summer to fall.

• It grows in full sun or part shade and wants well-drained soil.
• Water needs are low once it is settled.
• Stems die back in cold weather while the roots usually survive, so expect regrowth in spring.
• It can reseed, so pull extra seedlings you do not want.

A trimmed 3 to 5 foot shrub looks planned. Shear it a few times a year to avoid a leggy look.

Fall

Fall is still bloom time, so just keep it tidy.

• Flowers continue into fall.
• Pull or move seedlings that pop up where you do not want them.
• Hold off on heavy pruning until the plant slows down.

Winter

In winter the stems die back, which is normal.

• The stems are not cold hardy and will die back in cold weather.
• Cutting it near the ground before the cold season prepares it for dieback.
• Do not water the dormant roots much, since the roots like well-drained soil.

Spring

Spring is when you cut back and let new growth start.

• If frost browned the leaves, cut it back by one third to one half before spring growth starts.
• Water new plants regularly. Established plants need little.
• Skip heavy feeding.

Summer

Summer is bloom season, and it needs very little care.

• Water only during long dry spells.
• Shear it lightly now and then to control legginess.
• Enjoy the orange tubular blooms that start in summer.

Year-round

Flame acanthus is a tough, low-water shrub with red-orange tube flowers that hummingbirds love, and it handles San Antonio's rocky, limestone-type soils well.

• Give it full sun for the most blooms. Part shade is okay, but it flowers best in full sun.
• Plant it in well-drained soil. It adapts to clay, caliche, and limestone soils.
• Expect about 3 feet tall, sometimes up to 5 feet, in a spreading shape.
• Water it while it settles in, then let it dry out. It is drought tolerant and rain tends to trigger blooms.
• Deer tend to leave it alone, and hummingbirds and butterflies visit it.

It tolerates shearing and can be kept as a low hedge, which makes it an easy HOA-friendly fit for a front bed.

Fall

Flame acanthus keeps blooming into fall, so leave it alone and enjoy the flowers.

• Blooms run through October and, by some sources, into November.
• Hold off on pruning while it is still flowering, since cutting now removes blooms.
• Little or no watering is needed. Let rain do the work.
• Fall is a fine time to watch for seedlings, since it seeds out readily.

Winter

Winter is the pruning season for flame acanthus, and a freeze that kills the top growth does not usually kill the roots.

• Prune in winter for more blooms and a compact shape. Cutting back by about one third before spring growth works well.
• If frost kills the plant to the ground, do not pull it out. Its roots survive and it regrows in spring.
• It is a deciduous shrub, so bare stems in winter are normal.
• No extra watering is needed in winter.

Spring

Spring is a good time to shear flame acanthus if you have not already, and it is slow to leaf out, so be patient.

• Cut dead top growth back before new spring growth starts if the plant died back over winter.
• It responds well to shearing or hard cutting back in early spring.
• Do not give up on a bare plant. It is slow to leaf out in spring.
• Skip fertilizer. It is built for lean, rocky, well-drained soil.

Summer

Summer is when flame acanthus blooms, and it asks for very little water once established.

• Expect red-orange flowers from about June on, and hummingbirds and butterflies will stop by.
• Established plants are drought tolerant, so extra watering is usually not needed.
• A little extra water during a dry summer can encourage more flowers.
• Rain tends to trigger a new flush of blooms.

Year-round

Flame acanthus is a heat-loving, drought-tough shrub that wants full sun and well-drained soil. In the Hot Springs area the wetter climate and heavier soils are the thing to watch, so drainage matters most here. Once it is established it needs little water, and you can expect the top to freeze back in winter and regrow from the roots each spring, which means one hard cutback a year and easy care otherwise.

• Establishment: water a new plant deeply about once a week through the first summer, then cut way back so the roots learn to reach for water.
• Watering once established: low water and good drainage are key. Skip watering after normal Arkansas rain and only soak during a real dry spell.
• Mulch: a two to three inch mulch layer held back from the stems conserves moisture and protects the crown through winter cold.
• Common mistake: soggy, rich soil makes it flop and can rot the crown. Plant it high and lean in the sunniest, best-draining spot you have.

Fall

Fall keeps blooming up to frost in the Hot Springs area, so leave the plant standing for late pollinators. Do only a light tidy now and save the hard cut for spring so the crown stays protected.

• Let it flower into October. The late blooms feed hummingbirds and butterflies heading into fall.
• Do not cut it to the ground yet. Standing stems shield the crown through the coming cold, so the hard cutback waits for spring.
• Trim only broken or badly out-of-bounds stems to keep the front bed looking neat.

A quick fall trim of stray or broken stems keeps the front-yard planting reading as intentional rather than neglected and heads off a tidiness complaint, while still leaving nectar for pollinators.

Winter

In the Hot Springs area the top freezes back and the plant goes dormant, surviving from the roots. There is almost nothing to do beyond protecting the crown and keeping it from sitting in cold, wet soil.

• Expect the top to die back after a hard freeze. Flame acanthus regrows from the roots in spring per the Wildflower Center.
• Keep a couple inches of mulch over the root zone for cold protection, but make sure the crown is not sitting in standing winter water.
• Leave the dead stems standing over winter as extra crown insulation, then cut them low in spring.

Bare dormant stems can look untended from the street, so a low border or a simple marker keeps the spot reading as an intentional resting planting instead of a dead one and avoids a violation letter.

Spring

Spring is cutback time in the Hot Springs area. After the last hard frost, cut the plant back low so it regrows dense and full, and make sure the bed drains well before the wet season really gets going.

• Once hard freezes are done, cut stems back to within about six inches of the ground per the Wildflower Center guidance for compact regrowth.
• Check that the planting spot drains well before spring rains arrive. Standing water on the crown is the main risk here.
• Pull winter mulch back off the crown so new shoots warm up and emerge cleanly.

A clean early-spring cutback reads as intentional care from the curb and lowers the odds of a violation letter, since the plant comes back tidy instead of a snarl of last year's dead stems.

Summer

Summer is peak bloom. Flame acanthus flowers June through October per the Wildflower Center and handles Arkansas heat easily. With the humidity here, err on the dry side and let it do its thing.

• Let rainfall do most of the work. Only water deeply during a genuine dry stretch, and avoid keeping the soil wet.
• Give it as much sun and airflow as you can, which keeps humid-summer leaf problems down and blooms up.
• Skip fertilizer. Feeding gives you soft leafy growth instead of the orange-red tubular flowers hummingbirds want.

Year-round

Wright's acanthus is a 3 to 5 foot shrub that accepts many soils including clay, but it still wants good drainage in wet Beaumont.

• Plant in full sun, though it tolerates light shade.
• It accepts well-drained sand, loam, and clay, so improve drainage with a raised bed in Beaumont.
• It has low water needs and is very drought tolerant once established.
• Red-orange flowers appear from June through October and are fullest in sun.

Pruning in winter keeps it a tidy, compact shrub for a front bed.

Fall

Flowers continue into October, so fall is a good time to enjoy it and to plant.

• Blooms last through October.
• Fall planting gives roots time to settle before winter.
• Keep new plants lightly watered until rains return.
• Let the shrub rest and avoid heavy watering as growth slows.

Winter

Winter is the time to prune for a fuller, more compact shape.

• Prune in winter to encourage fuller growth.
• It survives winters well north of the Gulf Coast, so cold is not the main worry.
• In colder spots it can die back to the roots and return in spring.
• Avoid wet, poorly drained soil, which is the bigger winter risk.

Spring

Spring is a good time to plant, and growth picks up as the weather warms.

• Plant in a raised spot so spring rains drain away.
• Water new plants only enough to get them established.
• Give it full sun for the best bloom later in the year.
• Avoid rich soil and frequent fertilizing, since it is adapted to lean sites.

Summer

Summer is bloom season, and established plants need very little water.

• Flowers show from June onward in full sun.
• Water deeply but rarely, only when the soil has dried out.
• Rain can trigger a fresh flush of flowers.
• Leave space around the plant for air flow in humid weather.

Year-round

Flame acanthus is a tough, heat-loving shrub that is native to central and west Texas per the Lady Bird Johnson Wildflower Center, so around Dallas it is well suited to your climate. Give it full sun and lean, well-drained soil. Once it is settled in, it wants very little water and almost no fuss. In the Dallas area the top usually freezes back in winter and the plant regrows from the roots each spring, so plan on one hard cutback a year and let it do its thing the rest of the season.

• Establishment: water a new plant deeply about once a week for the first summer so the roots reach down, then taper off.
• Watering once established: low water. A deep soak every two to three weeks in a Dallas summer dry spell is plenty; it tolerates drought well.
• Mulch: keep a two to three inch layer of mulch pulled back from the stems to hold moisture and protect the crown through winter freezes.
• Common mistake: overwatering and rich soil make it floppy and leggy. Keep it lean and sunny for the most flowers and the best hummingbird show.

Fall

Fall keeps blooming right up to frost in the Dallas area, so leave the plant standing to feed late hummingbirds and butterflies. Do a light tidy only, and save the hard cut for spring.

• Let it keep flowering into October. The late blooms are a valuable nectar source before frost.
• Do not cut it to the ground now. The old stems help protect the crown through winter, so a hard cutback waits until spring.
• A light trim of any broken or wildly out-of-bounds stems is fine for a neater curb look.

A quick fall tidy of stray or broken stems keeps the front-yard silhouette looking intentional through the season and heads off a tidiness complaint, while still leaving the plant standing for pollinators.

Winter

In the Dallas area the top usually freezes back and the plant goes dormant, surviving from the roots. There is very little to do. Just protect the crown and wait for spring regrowth.

• Expect the top to die back after a hard freeze. This is normal for flame acanthus this far north per the Wildflower Center, and it returns from the roots in spring.
• Keep a couple inches of mulch over the root zone to buffer the crown during cold snaps.
• Leave the dead stems standing over winter as extra crown protection, then cut them low in spring.

Leaving dead winter stems standing can look messy from the curb, so a simple placed marker or a low border keeps the spot reading as an intentional dormant planting rather than a neglected bed and avoids a violation letter.

Spring

Spring is cutback and cleanup time in the Dallas area. After the last hard frost, cut the whole plant back low so fresh growth comes up dense and full. Give it a good watering to wake it up.

• Once the danger of a hard freeze passes, cut stems back to within about six inches of the ground per the Wildflower Center guidance so the plant regrows compact.
• Water deeply once after the cutback to push new growth, then return to lean watering.
• Pull back winter mulch a little so the crown warms up and new shoots come through easily.

A clean early-spring cutback reads as intentional care to neighbors and reduces the chance of a violation letter, since the plant regrows tidy instead of showing a tangle of last year's dead stems.

Summer

Summer is peak bloom. Flame acanthus flowers June through October per the Wildflower Center and shrugs off Dallas heat. Your main job is to water only during real dry spells and enjoy the hummingbirds.

• Water deeply only every two to three weeks during a hot dry stretch. It is drought tolerant and does not want soggy roots.
• If it gets rangy by midsummer, you can shear it back lightly to keep it shaped and it will rebloom.
• Skip fertilizer. Rich feeding gives you leaves instead of the orange-red tubular flowers hummingbirds come for.

Year-round

Flame acanthus is a tough, sun-loving shrub that needs little water once settled in.

• Give it full sun, at least 6 to 8 hours a day. It tolerates part shade but may flower less there.
• It likes well-drained soil and handles alkaline soil. Avoid low spots and areas near downspouts.
• Once established it is very drought tolerant and rarely needs extra water.
• It dies back in winter and is cut back, so expect bare stems in the cold months.

In a front yard, a light shear in the growing season keeps it from looking leggy.

Fall

Fall is peak bloom, so leave it alone and enjoy the hummingbirds.

• Flowers continue from summer through fall.
• Heavy pruning can reduce or stop flowering, so hold off big cuts while it blooms.
• It self-seeds, so watch for unwanted seedlings.

Winter

Winter is when the plant goes dormant and gets its cutback.

• Cut back nearly to ground level before cold weather, or after the first frost.
• The plant loses its leaves in winter. This is normal.
• Stems are less cold hardy than the roots, so a hard freeze can damage stem tips.

Spring

Spring is for light feeding and watching for new growth.

• A light top-dressing of compost in early spring is enough. It does not need extra fertilizer.
• Young plants need more water than established ones.
• Mulch around the base to hold moisture and keep weeds down.

Summer

Summer brings heat the plant loves and the start of flowers.

• Red tubular flowers start in mid-summer and attract hummingbirds.
• Shear lightly during the growing season to reduce legginess.
• Skip extra watering unless a late-summer drought gets extreme, then water at the base early in the day.