North America Non-native Plant

Spotted Goldenthistle

Botanical name: Scolymus maculatus

USDA symbol: SCMA5

Life cycle: annual

Habit: forb

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Spotted Goldenthistle: A Mediterranean Beauty in Your Garden If you’re looking for a unique annual flower that combines the cheerful brightness of yellow blooms with an intriguingly spiky personality, spotted goldenthistle might just catch your eye. This Mediterranean native has made itself at home in parts of North Carolina, bringing ...

Spotted Goldenthistle: A Mediterranean Beauty in Your Garden

If you’re looking for a unique annual flower that combines the cheerful brightness of yellow blooms with an intriguingly spiky personality, spotted goldenthistle might just catch your eye. This Mediterranean native has made itself at home in parts of North Carolina, bringing a touch of Old World charm to American gardens.

What Is Spotted Goldenthistle?

Spotted goldenthistle (Scolymus maculatus) is an annual forb that belongs to the sunflower family. Don’t let the thistle name fool you into thinking it’s related to true thistles – this plant is actually more closely related to dandelions and sunflowers. What makes it special are its distinctive purple-spotted stems and bright yellow, daisy-like flowers that bloom throughout the growing season.

As an annual plant, spotted goldenthistle completes its entire life cycle in one year, growing from seed, flowering, setting seed, and dying all within a single season. It’s a forb, which simply means it’s a non-woody flowering plant – think of it as an herb with a bit more personality.

Where Does It Grow?

Originally from the Mediterranean region of southern Europe and North Africa, spotted goldenthistle has naturalized in North Carolina, where it grows and reproduces on its own without human intervention. While it’s not native to the United States, it has established itself as part of the local flora in this southeastern state.

Should You Grow Spotted Goldenthistle?

The decision to grow spotted goldenthistle comes down to your gardening goals and philosophy. Here are some factors to consider:

The Appeal

  • Unique appearance with purple-spotted stems and bright yellow flowers
  • Attracts pollinators like bees and butterflies
  • Drought-tolerant once established
  • Low-maintenance annual
  • Interesting addition to wildflower gardens or Mediterranean-themed landscapes

Things to Consider

  • Not native to North America
  • May self-seed readily in favorable conditions
  • Spiny nature may not be suitable for high-traffic areas

Native Alternatives to Consider

If you’re committed to native-only gardening, consider these beautiful native alternatives that offer similar yellow blooms and pollinator benefits:

  • Black-eyed Susan (Rudbeckia species)
  • Lanceleaf Coreopsis (Coreopsis lanceolata)
  • Wild Bergamot (Monarda fistulosa)
  • Native sunflowers (Helianthus species)

How to Grow Spotted Goldenthistle

If you decide to give spotted goldenthistle a try, you’ll find it’s refreshingly easy to grow:

Growing Conditions

  • Sunlight: Full sun (6+ hours daily)
  • Soil: Well-draining soil; tolerates poor, sandy, or rocky soils
  • Water: Drought-tolerant; minimal watering needed once established
  • Climate: Thrives in USDA zones 7-10

Planting and Care

  • Direct sow seeds in spring after the last frost
  • Scatter seeds on prepared soil surface and lightly rake in
  • Keep soil moist until germination occurs
  • Once established, water only during extended dry periods
  • No fertilization necessary – this plant actually prefers lean soils
  • Deadhead spent flowers to encourage continued blooming

Garden Design Ideas

Spotted goldenthistle works well in several garden settings:

  • Mediterranean gardens: Pairs beautifully with lavender, rosemary, and other drought-tolerant herbs
  • Wildflower meadows: Adds texture and color to naturalized areas
  • Xeriscaping: Perfect for low-water garden designs
  • Cottage gardens: Provides an informal, slightly wild appearance

Pollinator Benefits

One of spotted goldenthistle’s strongest selling points is its appeal to pollinators. The bright yellow flowers produce nectar that attracts various bees, butterflies, and other beneficial insects throughout the blooming season. If you’re working to create a pollinator-friendly garden, this plant can certainly contribute to that goal.

Final Thoughts

Spotted goldenthistle represents an interesting choice for gardeners who appreciate unique plants with Old World character. While it’s not native to North America, it’s not currently listed as invasive either, making it a neutral option for those who aren’t strictly committed to native-only gardening. Its low-maintenance nature and pollinator appeal make it worth considering, especially if you’re creating a Mediterranean-themed garden or naturalized area.

As with any non-native plant, it’s wise to monitor its behavior in your garden and prevent it from spreading beyond your intended planting areas. When in doubt, choosing native alternatives will always be the most ecologically responsible option for supporting local wildlife and ecosystems.

Spotted Goldenthistle

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Scolymus L. - goldenthistle

Species

Scolymus maculatus L. - spotted goldenthistle

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA