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St. Andrew's-cross

Hypericum hypericoides

Last reviewed: October 2026

St. Andrew's-cross is a low shrub with small yellow flowers blooming June through November. It favors full sun to partial shade and dry, well-drained soils, thriving in open woodlands and sandy sites across the eastern and southeastern United States.

St. Andrew's-cross (Hypericum hypericoides)
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Toxicity unknown

St. Andrew's-cross (Hypericum hypericoides) 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

low

Size

6"–24" H × 6"–18" W

Bloom

Jun, Jul, Aug, Sep, Oct, Nov

Native to

AL, AR, DE, FL and 21 more states

Pollinators

butterflies, bees

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St. Andrew's-cross is a low-growing native shrub with small yellow flowers that bloom from summer through late fall. This compact plant forms neat mounds and requires minimal water once established, making it ideal for low-maintenance landscapes.

Growing St. Andrew's-cross

Grow St. Andrew's-cross in full sun and low water. Mature plants reach 6 to 24 inches tall and spread 6 to 18 inches wide. Expect moderate maintenance to keep it looking intentional in a front yard.

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How to care for St. Andrew's-cross, by region

How to care for St. Andrew's-cross 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: October 2026

Enter your ZIP code and we will open the guidance for your region.

Arkansas Valley (includes Fort Smith, AR)

Year-round

Year-round care for St. Andrew's-cross around Fort Smith, AR: sun or part shade, sandy or loamy soil that drains, and very little upkeep.

  • Plant it in full sun or part shade.
  • It likes sandy or loamy soil with average moisture, anywhere from moist to dry, as long as the spot drains.
  • It is fairly drought tolerant once it settles in. Water it during a long dry spell, since it does not like extremely dry ground.
  • Expect a small shrub about 2 to 4 feet tall and 1 to 3 feet wide, with small yellow flowers from summer into fall.
  • It is low maintenance and needs no regular upkeep.
  • It is a short-lived shrub, so plan on replanting it in time.

It stays a small, rounded shrub that sits neatly at the front of a foundation bed.

Sources: NC State Extension Gardener Plant Toolbox: Hypericum hypericoides, Florida Native Plant Society: Hypericum hypericoides, Lady Bird Johnson Wildflower Center: Hypericum hypericoides

Atlantic Coastal Pine Barrens (includes Riverhead, NY)

Year-round

Year-round care for St. Andrew's-cross around Riverhead, NY: sun or part shade, sandy or loamy soil that drains, and very little upkeep.

  • Plant it in full sun or part shade.
  • It likes sandy or loamy soil with average moisture, anywhere from moist to dry, as long as the spot drains.
  • It is fairly drought tolerant once it settles in. Water it during a long dry spell, since it does not like extremely dry ground.
  • It does not tolerate salt. Keep it away from salt spray and from ground that brackish water reaches.
  • Expect a small shrub about 2 to 4 feet tall and 1 to 3 feet wide, with small yellow flowers from summer into fall.
  • It is low maintenance and needs no regular upkeep.
  • It is a short-lived shrub, so plan on replanting it in time.

It stays a small, rounded shrub that sits neatly at the front of a foundation bed.

Sources: NC State Extension Gardener Plant Toolbox: Hypericum hypericoides, Florida Native Plant Society: Hypericum hypericoides, Lady Bird Johnson Wildflower Center: Hypericum hypericoides

Blue Ridge (includes Asheville, NC)

Year-round

Year-round care for St. Andrew's-cross around Asheville, NC: full sun to part shade, sandy or well-drained soil.

  • Best flowering comes in full sun, and it can take partial shade.
  • It tolerates clay, loam and sand.
  • It adapts to well-drained, moist or occasionally dry soil.
  • It resists dry soil once established.
  • It is fairly short-lived, and it is listed for zones 5a to 9b.

Its low, spreading habit stays neat at the front of a bed.

Sources: NC State Extension Plant Toolbox: Hypericum hypericoides subsp. multicaule

Boston Mountains (includes Clinton, AR)

Year-round

Year-round care for St. Andrew's-cross around Clinton, AR: sun or part shade, sandy or loamy soil that drains, and very little upkeep.

  • Plant it in full sun or part shade.
  • It likes sandy or loamy soil with average moisture, anywhere from moist to dry, as long as the spot drains.
  • It is fairly drought tolerant once it settles in. Water it during a long dry spell, since it does not like extremely dry ground.
  • Expect a small shrub about 2 to 4 feet tall and 1 to 3 feet wide, with small yellow flowers from summer into fall.
  • It is low maintenance and needs no regular upkeep.
  • It is a short-lived shrub, so plan on replanting it in time.

It stays a small, rounded shrub that sits neatly at the front of a foundation bed.

Sources: NC State Extension Gardener Plant Toolbox: Hypericum hypericoides, Florida Native Plant Society: Hypericum hypericoides, Lady Bird Johnson Wildflower Center: Hypericum hypericoides

Northern Piedmont (includes Lancaster, PA)

Year-round

Year-round care for St. Andrew's-cross around Lancaster, PA: sun or part shade, sandy or loamy soil that drains, and very little upkeep.

  • Plant it in full sun or part shade.
  • It likes sandy or loamy soil with average moisture, anywhere from moist to dry, as long as the spot drains.
  • It is fairly drought tolerant once it settles in. Water it during a long dry spell, since it does not like extremely dry ground.
  • Expect a small shrub about 2 to 4 feet tall and 1 to 3 feet wide, with small yellow flowers from summer into fall.
  • It is low maintenance and needs no regular upkeep.
  • It is a short-lived shrub, so plan on replanting it in time.

It stays a small, rounded shrub that sits neatly at the front of a foundation bed.

Sources: NC State Extension Gardener Plant Toolbox: Hypericum hypericoides, Florida Native Plant Society: Hypericum hypericoides, Lady Bird Johnson Wildflower Center: Hypericum hypericoides

Southeastern Plains (includes Tallahassee, FL)

Year-round

Year-round care for St. Andrew's-cross around Tallahassee, FL: sun or part shade, sandy or loamy soil that drains, and very little upkeep.

  • Plant it in full sun or part shade.
  • It likes sandy or loamy soil with average moisture, anywhere from moist to dry, as long as the spot drains.
  • It is fairly drought tolerant once it settles in. Water it during a long dry spell, since it does not like extremely dry ground.
  • Expect a small shrub about 2 to 4 feet tall and 1 to 3 feet wide, with small yellow flowers from summer into fall.
  • It is low maintenance and needs no regular upkeep.
  • It is a short-lived shrub, so plan on replanting it in time.

It stays a small, rounded shrub that sits neatly at the front of a foundation bed.

Sources: NC State Extension Gardener Plant Toolbox: Hypericum hypericoides, Florida Native Plant Society: Hypericum hypericoides, Lady Bird Johnson Wildflower Center: Hypericum hypericoides

Southern Coastal Plain (includes Jacksonville, FL)

Year-round

St. Andrew's cross is a native low shrub with an open, airy shape that fits well in a front yard bed near Jacksonville. It stays compact, needs little water once settled in, and blooms with small yellow cross-shaped flowers for much of the growing season.

  • Grows about 1 to 3 feet tall and wide with a thin, open habit, not a dense hedge shape.
  • Wants full sun to light afternoon shade. In our hot Jacksonville summers, a little afternoon shade is fine and won't hurt flowering.
  • Low water needs once established. It tolerates both the sandy well-drained soils and the occasional wet spell common in the Southeastern Plains near the coast.
  • Confirmed native to this part of Florida (native range includes FL) by Lady Bird Johnson Wildflower Center and the USDA PLANTS database.
  • Foliage is semi-evergreen here. Expect it to hold most leaves through a typical mild Jacksonville winter, with some drop after a harder cold snap.

Fall

Blooming tapers off through fall as days shorten. It's also a good, low-stress time to divide or move an established plant before winter sets in.

  • Flowers taper off through October, with small seed capsules forming behind the last blooms.
  • Leave some seed capsules if you want the plant to fill in on its own, or trim them off for a tidier look.
  • Fall is a good, low-stress window to divide or transplant an established clump before winter.
  • A light trim of any leggy stems now keeps the plant compact heading into winter.

A fall trim of leggy growth keeps the bed looking tidy through the winter months.

Winter

Jacksonville's winters are mild, zone 9b with only occasional hard freezes, so St. Andrew's cross usually holds most of its leaves through the season with just light dieback after a cold snap.

  • In a typical mild Jacksonville winter, the plant holds most of its leaves rather than going fully bare.
  • An occasional hard freeze can brown or drop some leaves. Leave that growth in place over winter, since it helps protect the stems underneath.
  • Save any harder pruning for late winter, right before new growth starts, rather than cutting back mid-winter.
  • No fertilizer is needed over winter. This plant is adapted to the low-nutrient sandy soils of the Southeastern Plains and doesn't need feeding to get through the cold months.

Winter leaf color can look a bit ragged after a cold snap. Hold off on a full trim until new growth starts in late winter so the bed doesn't sit bare.

Spring

Spring is prune-and-shape season for St. Andrew's cross in Jacksonville. New growth pushes out once the last frost risk passes in mid-February, and this is also a good, low-stress window to divide an established clump.

  • Late winter into early spring, just before new growth starts, is the best time to prune out dead wood and shape the plant.
  • If the clump has gotten overgrown or you want to start a new planting, spring division works well right as new growth begins.
  • New leaves and stems flush out through March and April as our humid growing season ramps up.
  • If a late-winter freeze browned any tips, wait for new growth to show before trimming, then cut back to the live wood.

A light spring shaping keeps the plant's naturally open form looking neat along a front bed edge.

Summer

Summer is the main bloom season for St. Andrew's cross, with small yellow flowers opening through Jacksonville's hot, humid months. Established plants get by on rainfall alone.

  • Flowering runs from around June into early fall, with four narrow yellow petals forming the plant's namesake cross shape.
  • Established plants handle Jacksonville's summer heat and afternoon thunderstorms without extra watering.
  • Good drainage matters more than watering here. In our humid summers, soggy soil is a bigger risk to this plant than going dry.
  • No deadheading is needed to keep new flowers coming.

Sources: Lady Bird Johnson Wildflower Center: Hypericum hypericoides, USDA PLANTS Database: Hypericum hypericoides (HYHY) profile, UF/IFAS Extension Nassau County: St. Andrew's cross identification and growing conditions, Florida Wildflower Foundation: St. Andrew's cross habitat and soil notes (community tip)

Southern Florida Coastal Plain (includes Miami, FL)

Year-round

Year-round care for St. Andrew's-cross around Miami, FL: sun or part shade, sandy or loamy soil that drains, and very little upkeep.

  • The sources that rate this plant list it through hardiness zone 9b, and Miami is warmer than that. Treat it as a trial here and start with one or two plants.
  • Plant it in full sun or part shade.
  • It likes sandy or loamy soil with average moisture, anywhere from moist to dry, as long as the spot drains.
  • It is fairly drought tolerant once it settles in. Water it during a long dry spell, since it does not like extremely dry ground.
  • It does not tolerate salt. Keep it away from salt spray and from ground that brackish water reaches.
  • Expect a small shrub about 2 to 4 feet tall and 1 to 3 feet wide, with small yellow flowers from summer into fall.
  • It is low maintenance and needs no regular upkeep.
  • It is a short-lived shrub, so plan on replanting it in time.

It stays a small, rounded shrub that sits neatly at the front of a foundation bed.

Sources: NC State Extension Gardener Plant Toolbox: Hypericum hypericoides, Florida Native Plant Society: Hypericum hypericoides, Lady Bird Johnson Wildflower Center: Hypericum hypericoides

In an HOA neighborhood

St. Andrew's-cross is an HOA-friendly choice in the right placement. Maintenance level: moderate. Tidiness: 4 out of 5.

Works well in: foundation, mid zone.

  • Requires annual shaping to stay compact

Wildlife value

The long blooming period provides nectar for butterflies and bees from summer through late fall. Its extended flowering season makes it particularly valuable for supporting pollinators during hot Texas summers.

Common questions

When does St. Andrew's-cross bloom?
St. Andrew's-cross typically blooms from June through November, producing small four-petaled yellow flowers over a long summer to fall season.
What pollinators visit St. Andrew's-cross?
Bees and butterflies are the main visitors to the yellow flowers of St. Andrew's-cross during its bloom period.
What growing conditions suit St. Andrew's-cross best?
This shrub grows best in full sun with low water needs, and it handles dry, sandy, or rocky soils well once established.
Does St. Andrew's-cross keep its leaves year round?
It is semi-evergreen in many areas, holding onto some foliage through mild winters but dropping more leaves where winters are colder.
How large does St. Andrew's-cross typically get?
It usually stays a low, spreading shrub, often reaching one to three feet in height in open woodland or roadside settings.
Is St. Andrew's-cross HOA-friendly?
St. Andrew's-cross 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 vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow St. Andrew's-cross? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.