Photo of Rojasianthe superba flower by J.G. in SF

Photo by J.G. in SF

Used with permission, all rights reserved

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Rojasianthe superba

Also Known As

  • Giant White Sunflower Tree

Plant type

tree, shrub

size

  • H: 10'-20'
  • W: 10'-20'

planting zones

  • 9b-10b

More Options

Rojasianthe superba plant details

Rojasianthe superba is a broadleaf evergreen shrub or tree with green foliage. In spring and summer white flowers emerge. Attracts birds. Grows well with bright shade - mostly shade and even moisture - regular water. Does well in rich and well-drained soil.

CHARACTERISTICS OF Rojasianthe superba

Plant type: shrub or tree
Plant family: asteraceae
Foliage: evergreen green
Mature size: 10 FT - 20 FT - wide, 10 FT - 20 FT - tall
Flowers: white blooms in spring and summer
Uses: fragrant, long-blooming, rare, small tree, tropical-looking, year round interest

GROWING CONDITIONS for Rojasianthe superba

USDA Zones: 9b - 10b
Sun exposure: bright shade - mostly shade
Watering frequency: even moisture - regular
Soil needs: rich and well-drained

Nursery contributed plant descriptions

Absolutely astonishing in bloom! From the highlands of Guatemala & S. Mexico comes this extremely rare evergreen Sunflower tree. In its native habitat it grows to 20’ tall though here in the Bay Area we’ve not seen it reach more than 10’. And just so handsome- with large 6” tropicalesque leaves held on strong upright bamboo-like branching stems. You get a good long show of blooms lasting from Feb.-May. Who wouldn’t love these amazing flowers - 2” across, clear white with a gorgeous raised black center encircled by a lime green ring. Lightly fragrant, too! Best grown in cool coastal areas where temps don’t rise much above 80 °F with bright/filtered shade or AM sun. Provide rich soil & regular water. Can be grown indoors in a container. Thanks goes out to Don Mahoney & Strybing Arboretum for sharing with us this rare gem!

Gardening facts about Rojasianthe superba plant

How to Grow Rojasianthe superba

  • Sun Exposure

    • bright shade - mostly shade
  • Water Needs

    • even moisture - regular
  • Soil Needs

    • well-drained
    • rich

Features

  • Foliage Color

    • green
  • Flower Color

    • white
  • Wildlife

    • birds
  • Flower Season

    • spring
    • summer
  • Foliage Season

    • evergreen
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