Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Asteraceae

Genus:

Zinnia

Species:

Zinnia grandiflora

USDA Symbol:

ZIGR

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Forb/herb , Subshrub

Height:

25 cm

Light Requirements:

Part Shade

Drought Tolerance:

High

Bloom Months:

jun,jul,aug,sep,oct

Bloom Colors:

yellow

Ground Cover:

Yes

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:

butterflies, bees

Deer Resistant:

Yes

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Resprouts from woody base after fire; common in fire-prone shortgrass prairie and desert grassland ecosystems.

Soil Requirements

Soil Type:

sandy, well-drained, nutrient-poor soil

pH:

6.0 - 8.0 (neutral to slightly alkaline)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

native to arid regions, drought-tolerant

Propagation & Germination

Stratification:

None required

Germination Time:

7–21 days

Notes:

Seeds germinate readily at warm temperatures (70-75°F) with no pretreatment required.

The above propagation data sourced from Claude AI