Nuttall's Thistle

Cirsium nuttallii

Nuttall's Thistle

jimduggan24

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Cirsium
Species:
Cirsium nuttallii

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
6 in - 1 ft
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
jun, jul, aug
Bloom Colors:
White, Pink, Purple, Violet

Native Range

United States: Alabama, Florida, Georgia, Louisiana, Mississippi, South Carolina, Virginia

Keystone Species Ranking

Bee Keystone:
★★☆☆☆ Based on number of native bee species using this genus for pollen and nectar (Source: National Wildlife Federation)

Soil Requirements

Soil Type:
moist, fertile, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
good drainage required
Moisture:
consistently moist
Notes:
prefers wetland areas like marshes and swamps

Germination Information

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).

Source: OpenAI GPT-4o