Home / Guides / Plant Files / Asteraceae

Rudbeckia, Black-Eyed Susan, Gloriosa Daisy 'Toto Lemon'

Rudbeckiahirta

Upload Image Print Article

View Gallery 3 photos

Upload Image Print Article

Family

Asteraceae (ass-ter-AY-see-ee)

Info

Genus

Rudbeckia (rud-BEK-ee-a)

Info

Species

hirta (HER-tuh)

Info

Synonym

Rudbeckia hirta var. pulcherrima

Sun Exposure

Full Sun

Sun to Partial Shade

Foliage

Evergreen

Herbaceous

This plant is resistant to deer

Height

12-18 in. (30-45 cm)

Spacing

9-12 in. (22-30 cm)

Hardiness

USDA Zone 5a: to -28.8 °C (-20 °F)

USDA Zone 5b: to -26.1 °C (-15 °F)

USDA Zone 6a: to -23.3 °C (-10 °F)

USDA Zone 6b: to -20.5 °C (-5 °F)

USDA Zone 7a: to -17.7 °C (0 °F)

USDA Zone 7b: to -14.9 °C (5 °F)

USDA Zone 8a: to -12.2 °C (10 °F)

USDA Zone 8b: to -9.4 °C (15 °F)

USDA Zone 9a: to -6.6 °C (20 °F)

USDA Zone 9b: to -3.8 °C (25 °F)

Danger

Unknown - Tell us

Bloom Color

Bright Yellow

Bloom Time

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Mid Fall

Late Fall/Early Winter

Blooms repeatedly

Other Details

Category

Annuals

Biennials

Perennials

Water Requirements

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Foliage Color

Unknown - Tell us

Where to Grow

Grow outdoors year-round in hardiness zone

Can be grown as an annual

Bloom Characteristics

Flowers are good for cutting

This plant is attractive to bees, butterflies and/or birds

Flowers are fragrant

Bloom Size

Unknown - Tell us

Other details

Unknown - Tell us

Soil pH requirements

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information

Unknown - Tell us

Propagation Methods

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; sow indoors before last frost

From seed; direct sow after last frost

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting

Collect seedhead/pod when flowers fade; allow to dry

Regional

This plant is said to grow outdoors in the following regions:

Lanett, Alabama

Saraland, Alabama

Denver, Colorado

Bolingbrook, Illinois

Hinsdale, Illinois

Wabash, Indiana

Saint Francisville, Louisiana

Brown City, Michigan

Lincoln, Nebraska

Candler, North Carolina

Elizabeth City, North Carolina

Marietta, Ohio

Drexel Hill, Pennsylvania

Greensburg, Pennsylvania

Joshua, Texas

show all

View this plant in a garden

6 members have or want this plant for trade

Gardener's Notes:

Post Comment

positive

neutral

negative

Sort By:

Post Comment

Sort By:

Popular Plants

SEE ALL

Featured

BUG FILES

Double-toothed Carpet

(Microdes diplodonta)

BIRD FILES

Ash-throated Flycatcher

(Myiarchus cinerascens)

Featured

BUG FILES

Double-toothed Carpet

(Microdes diplodonta)

BIRD FILES

Ash-throated Flycatcher

(Myiarchus cinerascens)

Rudbeckia, Black-Eyed Susan, Gloriosa Daisy 'Toto Lemon'

Rudbeckiahirta

Featured Videos

Gardener's Notes:

Get to Know Dave's Garden

Follow Dave's Garden