Purple Sandgrass

Triplasis purpurea

Native to:
Canada, Costa Rica, Honduras, Mexico, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Poaceae
Genus:
Triplasis
Species:
Triplasis purpurea
USDA Symbol:
TRPU4

Growth Characteristics

Life Cycle:
Annual
Growth Habit:
Graminoid
Height:
75 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
jul,aug,sep,oct
Bloom Colors:
purple

Garden & Ecology Notes

Wildlife Value:
birds, small mammals
Deer Resistant:
Yes
Salt Tolerant:
Yes
Fall Color:
purple, red
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts from base after fire; common in fire-maintained sand prairies and coastal dunes.

Soil Requirements

Soil Type:
sandy, nutrient-poor, well-drained soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
commonly found in coastal dunes and sandy areas

Propagation & Germination

Stratification:
None required
Germination Time:
14–30 days
Notes:
Germinates readily in warm conditions without pretreatment. Seeds require light for optimal germination.

The above propagation data sourced from Claude AI