North America Non-native Plant

Woolflower

Botanical name: Celosia trigyna

USDA symbol: CETR7

Life cycle: annual

Habit: forb

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

Woolflower (Celosia trigyna): A Non-Native Annual You Probably Don’t Want in Your Garden If you’ve stumbled across the name woolflower or Celosia trigyna in your gardening research, you might be wondering if this annual plant deserves a spot in your landscape. While it’s not necessarily a bad plant, there are ...

Woolflower (Celosia trigyna): A Non-Native Annual You Probably Don’t Want in Your Garden

If you’ve stumbled across the name woolflower or Celosia trigyna in your gardening research, you might be wondering if this annual plant deserves a spot in your landscape. While it’s not necessarily a bad plant, there are several reasons why most gardeners would be better served by choosing native alternatives instead.

What Is Woolflower?

Celosia trigyna, commonly known as woolflower, is a non-native annual forb that has made its way into Florida’s wild spaces. Unlike its showy cousin, the common cockscomb (Celosia argentea), this particular woolflower species is rather unremarkable in appearance. It’s an herbaceous plant without woody stems, meaning it dies back completely each year and starts fresh from seed.

Where Does It Grow?

Originally from tropical Africa, woolflower has established itself as an introduced species in Florida, where it reproduces on its own without human intervention. While it’s not considered invasive, it does tend to pop up in disturbed areas and less maintained spaces.

Why You Probably Don’t Want Woolflower

Here’s the thing about Celosia trigyna – it’s not going to win any beauty contests in your garden. The flowers are small and inconspicuous, offering little in terms of visual appeal. If you’re looking for a plant that will make your neighbors stop and ask what’s that gorgeous flower?, this isn’t it.

Additionally, as a non-native species, woolflower doesn’t provide the same ecological benefits as native Florida plants. It offers minimal value to local pollinators and wildlife, essentially taking up space that could be occupied by more beneficial native species.

Growing Conditions and Care

If for some reason you do decide to grow woolflower, it’s fairly undemanding:

  • Thrives in USDA zones 9-11
  • Prefers full sun
  • Tolerates poor, disturbed soils
  • Self-seeds readily (sometimes too readily)
  • Requires minimal care once established

The plant tends to do well in areas where other plants struggle, which might sound appealing but also means it can spread where you don’t necessarily want it.

Better Native Alternatives

Instead of woolflower, consider these beautiful native Florida alternatives that will provide much more value to your garden and local ecosystem:

  • Blanket Flower (Gaillardia pulchella) – Vibrant orange and red blooms that pollinators adore
  • Beach Sunflower (Helianthus debilis) – Cheerful yellow flowers and excellent wildlife value
  • Wild Bergamot (Monarda fistulosa) – Fragrant flowers that attract butterflies and hummingbirds
  • Tropical Sage (Salvia coccinea) – Red tubular flowers perfect for hummingbirds

The Bottom Line

While Celosia trigyna isn’t harmful to grow, it’s essentially the botanical equivalent of beige wallpaper – functional but forgettable. Your garden space is valuable real estate, and there are so many stunning native Florida plants that will give you more bang for your buck in terms of beauty, wildlife support, and ecological benefit.

If you’re passionate about growing Celosia species, stick with the more ornamental varieties of Celosia argentea, or better yet, explore the incredible diversity of native wildflowers that Florida has to offer. Your local pollinators (and your garden’s visual appeal) will thank you for it!

Woolflower

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Caryophyllales

Family

Amaranthaceae Martinov - Amaranth family

Genus

Celosia L. - cock's comb

Species

Celosia trigyna L. - woolflower

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