Threadleaf Sundew

Drosera filiformis

Native to:
Canada, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Droseraceae
Genus:
Drosera
Species:
Drosera filiformis
USDA Symbol:
DRFI

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
50 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
jun,jul,aug,sep
Bloom Colors:
pink, purple

Garden & Ecology Notes

Wildlife Value:
insects
Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Tolerates fire in bog and wet pine savanna habitats; resprouts from roots after burns.

Soil Requirements

Soil Type:
sandy, acidic, nutrient-poor soil
pH:
4.5 - 5.5 (strongly acidic)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
Thrives in boggy areas with high humidity.

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–90 days
Germination Time:
14–42 days
Notes:
Seeds require light for germination. Surface sow on moist peat and keep consistently wet.

The above propagation data sourced from Claude AI

ORGHPS Germination Guide: Sow @ 4°C for 3 weeks, then place at 20°C. * plant in deep pot

Source: Ontario Rock Garden & Hardy Plant Society