Non-native Plants

Sticky Lovegrass

Eragrostis glutinosa

USDA symbol: ERGL6

perennial grass

Puerto Rico: non-native, naturalized
U.S. Virgin Islands: non-native, naturalized

If you’re gardening in the warmest parts of the United States and looking for a low-maintenance grass option, you might have encountered sticky lovegrass (Eragrostis glutinosa). This perennial grass has made itself at home in Puerto Rico and the U.S. Virgin Islands, though it’s not originally from these areas. Let’s ...

Sticky Lovegrass: A Tropical Grass for Warm Climate Gardens

If you’re gardening in the warmest parts of the United States and looking for a low-maintenance grass option, you might have encountered sticky lovegrass (Eragrostis glutinosa). This perennial grass has made itself at home in Puerto Rico and the U.S. Virgin Islands, though it’s not originally from these areas. Let’s explore what makes this grass tick and whether it deserves a spot in your landscape.

What is Sticky Lovegrass?

Sticky lovegrass is a perennial grass that belongs to the large and diverse lovegrass family. You might also see it listed under its former scientific name, Poa glutinosa. True to its common name, this grass has a somewhat sticky quality that sets it apart from other grasses in the landscape.

As a non-native species, sticky lovegrass has established itself successfully in tropical climates where it reproduces naturally without human intervention. While it’s not originally from the Caribbean region, it has adapted well to these warm, humid environments.

Where Does It Grow?

Currently, sticky lovegrass is found growing in Puerto Rico and the U.S. Virgin Islands. Its distribution is limited to these tropical locations, which gives us a big clue about its climate preferences.

  • Species observed
  • No observations

Garden Appeal and Design Role

Like most lovegrasses, sticky lovegrass offers a fine-textured, naturalistic appearance that works well in informal landscape designs. Its perennial nature means it’ll return year after year, providing consistent ground coverage once established. The grass produces delicate, airy seed heads that add movement and texture to the garden.

This grass works best in naturalistic plantings where you want that wild meadow look rather than a formal, manicured appearance. It’s particularly useful for areas where you need reliable ground coverage without high maintenance requirements.

Growing Conditions and Care

Sticky lovegrass is only suitable for the warmest climates – think USDA hardiness zones 10-11. If you’re gardening anywhere that experiences frost, this isn’t the grass for you.

Based on its successful establishment in tropical climates, this grass likely prefers:

  • Full sun to partial shade
  • Well-draining soils
  • Warm temperatures year-round
  • Regular moisture, though probably drought-tolerant once established

The good news for busy gardeners is that sticky lovegrass appears to be relatively low-maintenance. Once it’s settled into your landscape, it should require minimal care beyond occasional watering during dry spells.

Should You Plant It?

Here’s where things get a bit complicated. While sticky lovegrass isn’t currently listed as invasive, it is a non-native species that has shown it can spread and establish itself without human help. This ability to naturalize means it could potentially outcompete native plants in some situations.

If you’re considering sticky lovegrass, you might want to first explore native grass alternatives that could provide similar benefits while supporting local ecosystems. Native grasses often offer superior wildlife benefits, including food sources for native insects and birds.

However, if you do choose to grow sticky lovegrass, monitor it carefully to ensure it doesn’t spread beyond where you want it in your garden.

A Word About Conservation

Interestingly, sticky lovegrass has a somewhat uncertain conservation status (listed as S2?, meaning undefined). This unusual situation – being both non-native and potentially of conservation concern – highlights the complex nature of plant conservation in our interconnected world.

The Bottom Line

Sticky lovegrass can be a useful addition to tropical gardens where you need reliable, low-maintenance ground coverage. However, given its non-native status and ability to spread naturally, consider native alternatives first. If you do plant it, enjoy its fine texture and easy-going nature, but keep an eye on its spread to be a responsible gardener.

Remember, the most sustainable landscapes are those that work with nature rather than against it, so native plants are usually your best bet for long-term garden success!

Eragrostis glutinosa is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Eragrostis glutinosa is also known as:

Poa glutinosa | USDA symbol: POGL13

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Monocot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Liliopsida - Monocotyledons
Subclass: Commelinidae
Order: Cyperales
Family: Poaceae Barnhart - Grass family
Genus: Eragrostis von Wolf - lovegrass

Species: Eragrostis glutinosa (Sw.) Trin. - sticky lovegrass

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