Non-native Plants

Dianella Saffordiana

Dianella saffordiana

USDA symbol: DISA21

perennial forb

Meet Dianella saffordiana, a perennial forb that’s something of an enigma in the gardening world. While this plant doesn’t have a widely recognized common name, it belongs to the fascinating Dianella genus and has captured the attention of botanists, particularly in relation to Hawaii’s unique flora. Dianella saffordiana is classified ...

Dianella saffordiana: The Mysterious Hawaiian Forb Worth Knowing About

Meet Dianella saffordiana, a perennial forb that’s something of an enigma in the gardening world. While this plant doesn’t have a widely recognized common name, it belongs to the fascinating Dianella genus and has captured the attention of botanists, particularly in relation to Hawaii’s unique flora.

What Makes This Plant Special?

Dianella saffordiana is classified as a forb, which simply means it’s an herbaceous flowering plant without woody stems. Think of it as nature’s version of a non-woody perennial that comes back year after year. Unlike shrubs or trees, this plant keeps its growing points at or below ground level, making it well-adapted to various environmental conditions.

Where Does It Come From?

While the exact native range of Dianella saffordiana remains somewhat unclear in botanical literature, evidence suggests a connection to the Hawaiian region. The plant has been documented with specific wetland status classifications in Hawaii, indicating it has established presence there.

Growing Characteristics

As a perennial forb, Dianella saffordiana offers the advantage of returning each growing season without the need for replanting. Its classification suggests it’s an adaptable plant that can handle various moisture conditions, particularly since it’s rated as Facultative Upland in Hawaii. This means it usually prefers drier conditions but can tolerate some wetland situations.

Garden Considerations

Here’s where things get interesting – and a bit challenging. While Dianella saffordiana appears to be a legitimate species, detailed growing information is surprisingly scarce in standard horticultural references. This presents both an opportunity and a cautionary note for gardeners:

  • The plant’s forb classification suggests it could work well in naturalistic garden settings
  • Its perennial nature means long-term garden value
  • The facultative upland status indicates flexibility with moisture levels
  • Limited cultivation information means you’d be somewhat pioneering in growing it

Should You Plant It?

If you’re considering adding Dianella saffordiana to your garden, proceed with informed caution. The limited available information means you’d be taking on a bit of an adventure. Here are some things to consider:

Potential Benefits:

  • Unique addition that few gardeners are growing
  • Perennial nature provides lasting garden structure
  • Adaptable moisture requirements

Considerations:

  • Limited growing guidance available
  • Unclear availability in nursery trade
  • Unknown performance in various climates

Alternative Suggestions

If you’re drawn to the idea of growing a Dianella species, you might consider looking into other, better-documented members of this genus that are more readily available and have established growing guidelines. Many Dianella species offer attractive grass-like foliage and interesting berries, with more reliable cultivation information.

The Bottom Line

Dianella saffordiana represents an intriguing piece of botanical diversity, particularly for those interested in Hawaiian flora or unique perennial forbs. While the limited information available makes it challenging to provide specific growing advice, its classification suggests it could be a worthwhile addition for adventurous gardeners willing to experiment.

If you do decide to seek out this plant, make sure to source it responsibly and be prepared to observe and learn as you grow it. Sometimes the most rewarding plants in our gardens are the ones that teach us something new along the way.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" — matching plants to their ideal growing conditions, so they'll thrive with less care and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection can be if you don't have the right information. While tags on nursery plants list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. You might be surprised to learn that popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. The table below gives insight into the preferred growing conditions of this plant throughout its geographical distribution.

Region
Preferred Habitat

Hawaii ()

Facultative Upland
Wetland Glossary
Obligate Wetland
Facultative Wetland
Facultative
Facultative Upland
Obligate Upland
Almost always occurs in wetlands
Usually occurs in wetlands but may occur in non-wetlands
Can occur in wetlands and non-wetlands
Usually occurs in non-wetlands but may occur in wetlands
Almost never occurs in wetlands

Classification

Group: Monocot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Liliopsida - Monocotyledons
Subclass: Liliidae
Order: Liliales
Family: Liliaceae Juss. - Lily family
Genus: Dianella Lam. - dianella

Species: Dianella saffordiana Fosberg & Sachet

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