Golden Groundsel

Year-round

Golden groundsel is a low, clumping perennial with heart shaped, semi evergreen leaves and clusters of small yellow daisy flowers in spring. It likes part sun to part shade and soil that stays evenly moist, and it is not a Texas native, so treat it as a garden groundcover rather than a locally native planting.

• Space new plants 12 to 18 inches apart; the basal rosette spreads slowly by rhizomes into a solid groundcover over one to two seasons.
• Give it part sun to part shade; in full sun the soil should not be allowed to dry out completely.
• Water regularly so soil stays evenly moist, more so for plants in fuller sun.
• Keep dogs, cats, and horses away from the foliage. ASPCA lists golden ragwort as toxic to all three, containing pyrrolizidine alkaloids that can cause liver damage if enough is eaten.

Fall

Fall is a quieter season for golden groundsel and a good time to clean up tired summer foliage and divide crowded clumps.

• Cut back any yellowed or tattered leaves in October once the weather cools, leaving the fresh basal rosette in place.
• Divide congested clumps in October or November and replant divisions 12 to 18 inches apart to fill in bare spots.
• Ease off supplemental watering as temperatures drop and rainfall picks up in September and October.
• Any new divisions planted this season still need regular water through the first frost to root in before winter.

A fall cleanup and division keeps the groundcover looking full and tended instead of patchy heading into winter.

Winter

Winters are mild in North Texas, and golden groundsel holds its leaves through most of the season, though a hard freeze can flatten the foliage temporarily.

• Expect the basal leaves to stay green through short freezes, sometimes taking on a purple tinge on the undersides in cold weather.
• During a severe Arctic outbreak, a 2 to 3 inch layer of mulch over the crown helps protect it.
• Skip watering during freezing weather; resume only after the ground thaws and stays above freezing.
• Leave flattened winter foliage in place until new spring growth starts; it usually rebounds on its own.

Evergreen basal foliage through winter keeps the bed from looking bare, reading as an intentional planting rather than dead ground.

Spring

Spring is when golden groundsel blooms and the best time to plant it in North Texas, once the mid March frost date has passed.

• Plant new starts after mid March, spacing 12 to 18 inches apart, in part sun to part shade.
• Water two to three times a week for the first six weeks after planting so roots establish before summer heat arrives.
• Clusters of yellow daisy like flowers open on stalks up to about 2 feet tall in April and May; let them bloom fully before any trimming.
• Once flowers fade in late May or June, cut the spent flower stalks down to the basal leaves to tidy the bed.

Cutting back the spent flower stalks once blooms fade keeps the bed reading as an intentional, maintained planting rather than a spot that was forgotten.

Summer

Summer is the hardest season for this plant in North Texas. Hold on to consistent soil moisture during the 100 degree stretches so the groundcover does not stress or die back in patches.

• Water deeply once or twice a week during July and August dry spells, more often for plants in full sun.
• Keep 2 to 3 inches of mulch over the root zone to hold moisture and keep roots cooler.
• Wilted or flattened leaves in the afternoon heat are a sign it needs more water, not necessarily more shade.
• Skip fertilizer during the hottest weeks; feeding a heat stressed plant in summer does more harm than good.

A wilted, flattened look in peak afternoon heat can read as an unmaintained bed from the street; a deep morning watering usually has the groundcover looking recovered by evening.

Year-round

Golden groundsel is a low, clumping perennial with heart shaped, semi evergreen leaves and clusters of small yellow daisy flowers in spring. It likes part sun to part shade and soil that stays evenly moist, and it is not a Texas native, so treat it as a garden groundcover rather than a locally native planting.

• Space new plants 12 to 18 inches apart; the basal rosette spreads slowly by rhizomes into a solid groundcover over one to two seasons.
• Give it part sun to part shade; in full sun the soil should not be allowed to dry out completely.
• Water regularly so soil stays evenly moist, more so for plants in fuller sun.
• Keep dogs, cats, and horses away from the foliage. ASPCA lists golden ragwort as toxic to all three, containing pyrrolizidine alkaloids that can cause liver damage if enough is eaten.

Fall

Fall is a quieter season for golden groundsel and a good time to clean up tired summer foliage and divide crowded clumps.

• Cut back any yellowed or tattered leaves in October once the weather cools, leaving the fresh basal rosette in place.
• Divide congested clumps in October or November and replant divisions 12 to 18 inches apart to fill in bare spots.
• Ease off supplemental watering as temperatures drop and rainfall picks up in September and October.
• Any new divisions planted this season still need regular water through the first frost to root in before winter.

A fall cleanup and division keeps the groundcover looking full and tended instead of patchy heading into winter.

Winter

Winters are mild in North Texas, and golden groundsel holds its leaves through most of the season, though a hard freeze can flatten the foliage temporarily.

• Expect the basal leaves to stay green through short freezes, sometimes taking on a purple tinge on the undersides in cold weather.
• During a severe Arctic outbreak, a 2 to 3 inch layer of mulch over the crown helps protect it.
• Skip watering during freezing weather; resume only after the ground thaws and stays above freezing.
• Leave flattened winter foliage in place until new spring growth starts; it usually rebounds on its own.

Evergreen basal foliage through winter keeps the bed from looking bare, reading as an intentional planting rather than dead ground.

Spring

Spring is when golden groundsel blooms and the best time to plant it in North Texas, once the mid March frost date has passed.

• Plant new starts after mid March, spacing 12 to 18 inches apart, in part sun to part shade.
• Water two to three times a week for the first six weeks after planting so roots establish before summer heat arrives.
• Clusters of yellow daisy like flowers open on stalks up to about 2 feet tall in April and May; let them bloom fully before any trimming.
• Once flowers fade in late May or June, cut the spent flower stalks down to the basal leaves to tidy the bed.

Cutting back the spent flower stalks once blooms fade keeps the bed reading as an intentional, maintained planting rather than a spot that was forgotten.

Summer

Summer is the hardest season for this plant in North Texas. Hold on to consistent soil moisture during the 100 degree stretches so the groundcover does not stress or die back in patches.

• Water deeply once or twice a week during July and August dry spells, more often for plants in full sun.
• Keep 2 to 3 inches of mulch over the root zone to hold moisture and keep roots cooler.
• Wilted or flattened leaves in the afternoon heat are a sign it needs more water, not necessarily more shade.
• Skip fertilizer during the hottest weeks; feeding a heat stressed plant in summer does more harm than good.

A wilted, flattened look in peak afternoon heat can read as an unmaintained bed from the street; a deep morning watering usually has the groundcover looking recovered by evening.