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Threadleaf Sundew, Tracy's Sundew
|Life Span:||Short-lived perennial|
|Phenology:||Blooms in spring to early summer. Winter dormant.|
|Noted for:||Showy flowers|
|Recommended Uses:||Bog gardens and rain gardens.|
|Propagation:||Seed. At least for most species, winter cold stratification is highly benefitial. Seeds should not be buried, but benefit from being stored in a cold location (refrigerator) for several months.|
always floodedextremely dry
|(Usually moist, occasional inundation ----- to ----- Usually moist, occasional inundation)|
|Moisture Tolerance:||Usually moist, occasional inundation ----- to ----- Usually moist, occasional inundation|
|Salt Water Flooding Tolerance:||Unknown|
|Salt Spray/ Salty Soil Tolerance:||Unknown|
|Soil or other substrate:||Organic material (muck), Sand|
The plant both attracts insects for pollination and traps and digests insects. Though this species has not been well studied, other species are known to have mechanisms for keeping these separate -- eating your pollinator is not a good plant survival strategy. On study suggests that the primary separation mechanism is raising the flowers well above the sticky stems so that the pollinators don't get trapped.
Sweat bees (Agapostemon), bumble bees (Bombus), syrphid flies, and meloid beetles have been listed as pollinators.
|Native Habitats:||Savannas, bogs, moist disturbed ruderal areas (selected roadside swales), wet flatwoods|
Distribution and Planting Zones
Natural Range in Florida
Suitable to grow in:
USDA zones are based on minimum winter temperatures
|General Comments:||A similar species, Drosera filiformis is rare in the Florida panhandle and disjunct from northeastern US populations. In Florida, it is restricted to the Sand Hill Lakes region of the Panhandle and occurs along the fringes of those sandhill lakes. At one time, Drosesra tracyi was called Drosera filiformis var. tracyi. They are now considered to be different species.|