North America Native Plant

Sandhill St. Johnswort

Botanical name: Hypericum lloydii

USDA symbol: HYLL

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Sandhill St. Johnswort: A Rare Native Gem for Southeast Gardens Meet sandhill St. Johnswort (Hypericum lloydii), a charming little native shrub that’s as rare as it is beautiful. This petite perennial brings sunny yellow blooms to Southeast gardens while supporting local ecosystems – though finding it might take some detective ...

Rare plant alert!

Region: Alabama

Status: S1: Status is uncertain but is somewhere between the following rankings: Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘

Sandhill St. Johnswort: A Rare Native Gem for Southeast Gardens

Meet sandhill St. Johnswort (Hypericum lloydii), a charming little native shrub that’s as rare as it is beautiful. This petite perennial brings sunny yellow blooms to Southeast gardens while supporting local ecosystems – though finding it might take some detective work!

What Makes Sandhill St. Johnswort Special?

This delightful native shrub stays refreshingly compact, typically growing under 1.5 feet tall and never exceeding 3 feet at maturity. Its cheerful yellow flowers bloom in summer, creating bright spots of color that pollinators absolutely love. The small, simple leaves give it a neat, tidy appearance that works well in naturalized settings.

Where Does It Call Home?

Sandhill St. Johnswort is a true southeastern native, naturally occurring in Alabama, Georgia, North Carolina, South Carolina, and Virginia. As its common name suggests, this plant thrives in the sandy soil conditions typical of sandhill habitats throughout the region.

Important Conservation Note

Here’s where things get serious – sandhill St. Johnswort is quite rare in nature. In Alabama, it holds an S1 rarity status, meaning it’s critically imperiled with very few known populations. If you’re interested in growing this special plant, please only obtain it from reputable native plant nurseries that propagate from ethically sourced material. Never collect from wild populations!

Why Gardeners Love (and Should Grow) This Plant

Despite its rarity in the wild, there are compelling reasons to consider sandhill St. Johnswort for your garden:

  • Supports native pollinators with summer nectar
  • Stays naturally compact – no aggressive spreading
  • Drought tolerant once established
  • Perfect for native plant gardens and naturalized areas
  • Helps preserve a rare species through cultivation

Growing Conditions and Care

This sandhill native has some specific preferences that mirror its natural habitat:

  • Soil: Well-drained sandy soils are essential
  • Light: Full sun to partial shade
  • Water: Drought tolerant; avoid overwatering
  • Climate: Hardy in USDA zones 7-9

Perfect Garden Roles

Sandhill St. Johnswort shines in several garden settings:

  • Native plant gardens focused on southeastern species
  • Rock gardens with sandy, well-drained soil
  • Naturalized areas mimicking sandhill habitats
  • Conservation plantings supporting rare species
  • Low-maintenance groundcover in appropriate conditions

Planting and Care Tips

Once you’ve sourced your plant responsibly, growing sandhill St. Johnswort is relatively straightforward:

  • Plant in spring after frost danger passes
  • Ensure excellent drainage – soggy soil is this plant’s enemy
  • Water regularly the first year to establish roots
  • Once established, it’s quite drought tolerant
  • Minimal pruning needed due to its naturally compact habit
  • No fertilizer necessary in most soils

Supporting Pollinators and Wildlife

Those sunny yellow flowers aren’t just pretty – they’re pollinator magnets! Bees and other beneficial insects visit the blooms for nectar, making this plant a valuable addition to pollinator-friendly gardens. By growing rare native species like sandhill St. Johnswort, you’re creating habitat that supports local ecosystems.

The Bottom Line

Sandhill St. Johnswort offers gardeners a chance to grow something truly special – a rare native plant that’s both beautiful and ecologically valuable. While it requires specific growing conditions and responsible sourcing, the reward is a charming shrub that connects your garden to the unique sandhill ecosystems of the Southeast. Just remember: only grow plants from reputable, conservation-minded sources, and you’ll be helping preserve this botanical treasure for future generations.

Sandhill St. Johnswort

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Theales

Family

Clusiaceae Lindl. - Mangosteen family

Genus

Hypericum L. - St. Johnswort

Species

Hypericum lloydii (Svens.) P. Adams - sandhill St. Johnswort

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA