Seymeria spp.

Blacksenna

OROBANCHACEAE

Also known as Seymeria pectinata, Seymeria cassioides

Plant Specifics

Form:Flower
Life Span:Long-lived perennial
Flower Color:Yellow
Fruit Color:
Phenology:Spring-fall (mostly fall) blooming. Winter dormant.
Noted for:Showy flowers

Landscaping

Recommended Uses:Retain in semi-natural gardens.
Considerations:Both species are hemi-parasitic (semi-parasitic) and difficult to grow without appropriate host plants. 
Propagation:Seed. Please be sure to have landowner permission before collecting.
Availability:-
Light: Full Sun,  Part Shade
Moisture Tolerance:
always floodedextremely dry
 (Somewhat moist, no flooding ----- to ----- Very long very dry periods)
Moisture Tolerance: Somewhat moist, no flooding ----- to ----- Very long very dry periods
Salt Water Flooding Tolerance:Not salt tolerant of inundation by salty or brackish water.
Salt Spray/ Salty Soil Tolerance:Low/no tolerance of salty wind or direct salt spray
Soil or other substrate:-
Soil pH:

Ecology

Wildlife:
Insects:
  

  • Larval host for  black buckeye.
  • Attracts insects.

 

Native Habitats:Open upland woods and disturbed edges.

Distribution and Planting Zones

Natural Range in Florida
USDA Zones

Suitable to grow in:
10A 10B 8A 8B 9A 9B 

USDA zones are based on minimum winter temperatures

Comments

General Comments:

They are included here because they are valuable to insects and because they are lovely and good to have in a native garden if you are lucky enough to have them naturally.  

Data on culture has been assumed from where this grows in nature -- it is not typically grown and no reliable data appears to be available.

Can parasatize southern pines leading, in heavy infestations, to loss of vigor.