North America Non-native Plant

Hypericum Aegypticum Webbii

Botanical name: Hypericum aegypticum webbii

USDA symbol: HYAEW

Native status: Not native but doesn't reproduce and persist in the wild

Synonyms: Hypericum webbii (Spach) Steud. (HYWE)   

Hypericum aegypticum webbii: A Mysterious Member of the St. John’s Wort Family If you’ve stumbled across the name Hypericum aegypticum webbii in your botanical wanderings, you’re not alone in finding it a bit of a puzzle. This particular plant is one of those fascinating yet elusive species that keeps even ...

Hypericum aegypticum webbii: A Mysterious Member of the St. John’s Wort Family

If you’ve stumbled across the name Hypericum aegypticum webbii in your botanical wanderings, you’re not alone in finding it a bit of a puzzle. This particular plant is one of those fascinating yet elusive species that keeps even seasoned gardeners scratching their heads.

What Exactly Is Hypericum aegypticum webbii?

Hypericum aegypticum webbii belongs to the diverse Hypericum genus, commonly known as St. John’s Worts. You might also see it listed under its synonym Hypericum webbii in some botanical references. Like its better-known relatives, this plant is a dicot (flowering plant with two seed leaves), but that’s about where the clear information trail ends.

The Geographic Mystery

While the species name aegypticum suggests a connection to Egypt or the broader Mediterranean region, the exact native range and geographical distribution of this particular subspecies remains unclear in available horticultural literature.

Should You Grow It?

Here’s where things get tricky. With limited information available about this specific plant’s:

  • Growth habits and mature size
  • Preferred growing conditions
  • USDA hardiness zones
  • Invasive potential
  • Wildlife and pollinator benefits

It’s difficult to make a strong recommendation either way. The lack of readily available information suggests this isn’t a commonly cultivated garden plant, at least not in mainstream horticulture.

A More Practical Approach

If you’re drawn to the Hypericum family for your garden, you might want to consider better-documented alternatives that offer similar characteristics. Many St. John’s Wort species are known for their cheerful yellow flowers, relatively easy care, and ability to attract pollinators.

Before choosing any Hypericum species, it’s worth checking with your local native plant society or extension office to find out which species are native to your area and which ones might have invasive tendencies in your region.

The Bottom Line

Hypericum aegypticum webbii remains something of an enigma in the gardening world. While it’s certainly an interesting botanical specimen, the lack of cultivation information makes it challenging to recommend for typical home landscapes. If you’re a plant collector or botanical enthusiast who encounters this species through specialized sources, proceed with caution and gather as much local growing information as possible.

Sometimes the most responsible approach is to appreciate a plant’s existence in the botanical record while choosing better-understood species for our gardens. After all, successful gardening is as much about knowing what we don’t know as it is about what we do!

Hypericum Aegypticum Webbii

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 aegypticum L.

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