North America Non-native Plant

Frederick’s Festulolium

Botanical name: ×Festulolium fredericii

USDA symbol: FEFR2

Habit: grass

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

Frederick’s Festulolium: A Mysterious Grass Hybrid Meet Frederick’s festulolium (×Festulolium fredericii), one of gardening’s more enigmatic characters. This grass hybrid sits quietly in the botanical world, carrying the × symbol that tells us it’s a cross between two different grass genera – likely Festuca (fescue) and Lolium (ryegrass). But here’s ...

Frederick’s Festulolium: A Mysterious Grass Hybrid

Meet Frederick’s festulolium (×Festulolium fredericii), one of gardening’s more enigmatic characters. This grass hybrid sits quietly in the botanical world, carrying the × symbol that tells us it’s a cross between two different grass genera – likely Festuca (fescue) and Lolium (ryegrass). But here’s where things get interesting (and a bit frustrating for us plant enthusiasts): this particular hybrid plays hard to get when it comes to detailed information.

What We Know About This Grassy Mystery

Frederick’s festulolium belongs to the Poaceae family – the grass family that includes everything from your lawn to prairie grasses to bamboo. As a hybrid, it represents the botanical equivalent of mixing two recipes to create something new. However, unlike its more famous grass cousins, this particular hybrid hasn’t made it into the mainstream gardening spotlight.

The geographical distribution of this hybrid remains unclear, making it difficult to determine its native status or natural range.

The Growing Challenge

Here’s where we hit a wall: specific growing information for ×Festulolium fredericii is remarkably scarce. We don’t have reliable data on:

  • Preferred growing conditions
  • USDA hardiness zones
  • Mature size expectations
  • Specific care requirements
  • Wildlife or pollinator benefits

Should You Plant Frederick’s Festulolium?

Given the lack of available information, this hybrid presents some challenges for the home gardener. Without knowing its native status, invasive potential, or specific growing requirements, it’s difficult to recommend with confidence. Additionally, sourcing this particular hybrid may prove challenging since it’s not commonly available in the nursery trade.

Better Alternatives for Your Garden

If you’re drawn to the idea of ornamental grasses, consider these well-documented native alternatives instead:

  • Native fescue species (Festuca) appropriate to your region
  • Buffalo grass (Poaceae family) for prairie gardens
  • Little bluestem for naturalized areas
  • Native sedges for moisture-loving spots

These alternatives offer the benefit of known growing requirements, established wildlife benefits, and the peace of mind that comes with choosing plants adapted to your local ecosystem.

The Bottom Line

Frederick’s festulolium remains something of a botanical puzzle – intriguing in name but lacking the detailed information needed for successful cultivation. While hybrid grasses can offer unique characteristics, this particular one seems to prefer staying in the research realm rather than making the jump to garden centers.

For now, stick with well-documented native grasses that will give you predictable results and known ecological benefits. Your garden (and local wildlife) will thank you for choosing plants with proven track records over mysterious hybrids that keep their secrets too well.

Frederick’s Festulolium

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Cyperales

Family

Poaceae Barnhart - Grass family

Genus

×Festulolium Asch. & Graebn. - festulolium

Species

×Festulolium fredericii Cugnac & A. Camus - Frederick's festulolium

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