The Story
Plant Bio
Parietaria floridana, commonly known as Florida pellitory, is a tender annual herb native to North and South America that thrives in shady, moist, and disturbed environments. The plant features a sprawling or clumping habit with translucent, delicate stems and simple, alternate leaves with very fine, microscopic hairs.
Unlike true nettles in the Urticaceae family, this species lacks stinging hairs, though its wind-pollinated flowers produce highly allergenic pollen during the winter and spring. It serves as an important larval host plant for the Red Admiral butterfly.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Annual
Height
16"
Width
16"
Light
Partial Sun, Shade
Zones
8, 9, 10
Water
Medium
Humidity
High
Lifespan
Annual
Native To
North America, South America
Toxicity
Allergenic pollen
Bloom period
Winter – Spring
In flower about 6 months of the year
Planting
How to Grow
- Select a fully shaded site with moist, well-drained soil typical of garden loam.
- Sow seeds directly onto the soil surface, as the species propagates readily from seed.
- Maintain consistent moisture during the winter and spring growing season.
- Eradicate or pull plants manually if they begin to spread aggressively into unwanted cultivation areas.
Pro Tip
Establish this species in deep shade where soil remains consistently moist, as the tender stems quickly collapse and desiccate under direct, baking sunlight.
Keep It Thriving
Care Guide
Do
- Grow in full shade to protect the delicate foliage from heat stress.
- Allow the plant to complete its winter-to-spring growth cycle to support local Red Admiral butterfly larvae.
Don't
- Do not plant in areas exposed to intense afternoon sun or dry, baking conditions.
- Do not overwater to the point of waterlogging, which triggers root rot.
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pest Check | ||||||||||||
| Propagate | ||||||||||||
| Prune | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Multiply
Propagation Methods
Good to Know
Common Questions
Florida Pellitory questions
What zones can Florida Pellitory grow in?
Florida Pellitory is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
When does Florida Pellitory bloom?
Florida Pellitory typically blooms in winter through spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Florida Pellitory need full sun?
Florida Pellitory does best in part shade.
More Parietaria to compare
Keep exploring
Explore the genus
Hardy in your zone?
Grow Florida Pellitory with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.