Porterweed

Porterweed

Scientific Name

Stachytarpheta spp.

Geographical Considerations

Will this plant grow in my area?

View this image below in landscape mode highly recommended

Hardiness Zones

8a to 11

This plant is not native to Florida.

Yard Conditions

Will this plant grow in my yard?

Optimal Light

Porterweed grows best in Full Sun.

Light Range

It performs in Partial Shade to Full Sun

Soil Texture

Any Texture

Soil Moisture

Well Drained to Medium Drained

Soil pH

Slightly Acid to Slightly Alkaline (6.0-7.2)

Salt Tolerance

Medium

DroughtTolerance

Medium

Wind Resistance

Not known

Toxicity

Not known

Nematode Tolerance

Not known

Appearance

What will it look like as it grows?

Plant Type

  • Perennials

Plant Shape

  • Irregular
  • Upright

Leaf Persistence

Porterweed is Evergreen

Spread

3-4 feet

Height

2-8 feet

Growth Rate

Fast

Leaf Size

Medium

Leaf Texture

Coarse

Flower Size

Small

Flower Month

  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December

Flower Color

  • Blue
  • Purple

Plant Role for Butterflies

Nectar

Additional Detail

Use Stachytarpheta cayennensis and Stachytarpheta urticifolia with caution in North, Central, and South Florida | Flowers vary. Fruit is inconspicuous. | Pests/Diseases: none serious | attracts butterflies

UF IFAS Ext FFL