Photo of Petunia axillaris flower by Annie's Annuals & Perennials

Photo by Annie's Annuals & Perennials

Used with permission, all rights reserved

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Petunia axillaris

Also Known As

  • Wild White Petunia

Plant type

perennial

size

  • H: 2'-4'
  • W: 2'

planting zones

  • 9a-11

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Petunia axillaris plant details

Petunia axillaris is a broadleaf deciduous perennial with green foliage. In fall, spring and summer white flowers emerge. Features glaucous texture. Attracts bees, beneficial insects and hummingbirds making it an excellent addition to pollinator gardens. Grows well with sun - bright shade and even moisture - regular water. Does well in rich and well-drained soil.

CHARACTERISTICS OF Petunia axillaris

Plant type: perennial
Plant family: solanaceae
Foliage: deciduous green
Mature size: 2 FT wide, 2 FT - 4 FT - tall
Flowers: white blooms in fall, spring and summer
Uses: evening garden, fragrant, long-blooming, tropical-looking

GROWING CONDITIONS for Petunia axillaris

USDA Zones: 9a - 11
Sun exposure: sun - bright shade
Watering frequency: even moisture - regular
Soil needs: rich and well-drained

Nursery contributed plant descriptions

Graceful of habit & PERENNIAL, we adore this original ancestor of modern Petunias. Introduced into cultivation in 1837, we’re lucky to get seed from the U.C. Botanical Garden in Berkeley, CA. Large, 2.5” across, pure white flowers bloom from Spring to Fall, forming a 2x2’ mound of blooms that tastefully twirls itself around taller neighbors up to 4’. Night scented of vanilla & licorice, it’s pollinated by those amazing hawkmoths.

Gardening facts about Petunia axillaris plant

How to Grow Petunia axillaris

  • Sun Exposure

    • sun - bright shade
  • Water Needs

    • even moisture - regular
  • Soil Needs

    • well-drained
    • rich

Features

  • Foliage Color

    • green
  • Flower Color

    • white
  • Wildlife

    • beneficial insects
    • bees
    • hummingbirds
  • Flower Season

    • fall
    • summer
    • spring
  • Foliage Season

    • deciduous
  • Texture

    • glaucous
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