Whorled catchfly

Year-round

Starry campion is native to ecoregion 36 around Hot Springs per the USDA PLANTS database, and it does best in the light shade and rocky, well-drained soils common to Ouachita Mountain woodland edges.

• Grows 2 to 3 feet tall as an airy, clumping perennial with fringed white flowers in whorled leaves, blooming in summer.
• Prefers light to part shade and average, well-drained soil, closer to a woodland-edge setting than full open sun.
• Suited to naturalized, woodland, or cottage-style plantings rather than a tightly formal bed, given its loose, branching habit.
• Tolerates the rocky, thin soils typical of the Ouachita Mountains once established, and does not need rich amended beds.
• Needs little fertilizer or fuss, though consistent moisture during establishment helps it settle in.

Fall

Bloom tapers off by early fall in Hot Springs, and the plant begins preparing for dormancy well ahead of the first frost, usually arriving in the first ten days of November.

• Let the plant finish blooming naturally and leave some seed heads for late-season pollinators and seed-eating birds.
• Divide or transplant clumps in early fall while soil is still warm enough for roots to establish before frost.
• Cut back spent flowering stems once foliage starts to fade to keep a woodland or cottage bed looking tended.
• Clear fallen leaves from the crown to reduce fungal carryover into next year, especially in shadier, moister spots.
• Skip fertilizing in fall, since encouraging new soft growth this late leaves it vulnerable to an early cold snap.

Cutting back the fading stems once bloom ends keeps a visible woodland-edge bed tidy heading into fall.

Winter

Starry campion goes dormant for Hot Springs' generally mild zone 8a winter, needing no special protection in most years.

• Leave dead stems in place through winter for insect shelter, or cut back to a few inches if a tidier bed is the priority.
• Established plants tolerate the occasional ice storm or short hard freeze typical of central Arkansas without covering.
• Avoid walking or digging in the bed when soil is wet or frozen, since rocky Ouachita Mountain soil compacts easily when saturated.
• Mulch lightly with leaf litter in a woodland-style bed to mimic its natural setting, but keep it off the crown.
• Plan any division or bed edits for late winter, just before new shoots emerge in spring.

Spring

Plant starry campion in spring after Hot Springs' last frost, generally late March to early April, into a partly shaded spot with good drainage.

• Set out transplants after the last frost date, roughly late March through the first week of April in Garland County.
• Choose a site with light to part shade, similar to a woodland edge, rather than full all-day sun.
• Water new transplants regularly through spring until roots are established, since young plants dry out faster in rocky soil.
• Divide mature clumps in early spring if needed, before the loose, branching stems get tall.
• Watch for slug damage on tender new growth during wet spring weeks, especially in shadier spots.

Summer

Starry campion blooms for several weeks in summer in Hot Springs and appreciates some relief from the region's hottest, most humid stretches.

• Provide afternoon shade if the site gets full sun, since Hot Springs summer highs in the low 90s with high humidity can stress this species.
• Water during dry spells, since consistent moisture keeps the loose flower clusters going through the multi-week summer bloom.
• Deadhead spent flower clusters to tidy the plant, though this species is not aggressively self-seeding compared to some prairie natives.
• Watch for powdery mildew on foliage in the mugginess of mid-summer and improve airflow around the base if it shows up.
• Support floppy stems lightly with nearby plants or a discreet stake rather than heavy staking, since it has a naturally loose habit.