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Myrtleleaf St. Johnswort

Hypericum myrtifolium

Last reviewed: October 2026

Myrtleleaf St. Johnswort (Hypericum myrtifolium)
Photo: (c) Jay Horn, some rights reserved (CC BY)

Toxicity unknown

Myrtleleaf St. Johnswort (Hypericum myrtifolium) 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

24"–36" H × 18"–30" W

Bloom

Jun, Jul, Aug

Native to

AL, FL, GA, MS and 1 more states

Pollinators

bees, butterflies

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 459 programs across 44 states, each with a link to the provider and the date we last checked it.

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Browse plants for this ecoregion

Southeastern PlainsSouthern Coastal Plain

Myrtleleaf St. Johnswort is a compact native shrub that produces bright yellow flowers throughout summer. This drought-tolerant plant maintains a neat, rounded form and requires minimal care once established.

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In an HOA neighborhood

Myrtleleaf St. Johnswort is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, street edge, mid zone.

  • Loses leaves in winter
  • May look sparse when not blooming

Wildlife value

The cheerful yellow blooms attract bees and butterflies during the summer months. Its dense growth habit also provides shelter for small wildlife.

Common questions

How much sun does Myrtleleaf St. Johnswort need?
Myrtleleaf St. Johnswort grows best in full sun conditions.
When does Myrtleleaf St. Johnswort bloom?
Myrtleleaf St. Johnswort blooms in June, July, and August.
Where is Myrtleleaf St. Johnswort native?
Myrtleleaf St. Johnswort (Hypericum myrtifolium) is native to AL, FL, GA, MS and 1 more states, per vouchered herbarium specimen records and regional native plant society lists.
What pollinators does Myrtleleaf St. Johnswort attract?
Myrtleleaf St. Johnswort draws bees and butterflies.
Is Myrtleleaf St. Johnswort HOA-friendly?
Myrtleleaf St. Johnswort is generally an HOA-friendly choice in the right placement, with low maintenance.

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.

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