# swamp aster (*Symphyotrichum puniceum*)

Swamp asters are pretty flowers that bloom in late summer and fall. They have bright purple petals and attract butterflies and bees, making them a favorite in gardens and wetlands.

- **Category:** [Plants](https://www.snappit.app/explore/categories/plant)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Habitat:** Wetlands

![swamp aster](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Symphyotrichum_puniceum_flowers.jpg&width=800)

Photo: Jesse Rorabaugh, CC0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Symphyotrichum_puniceum_flowers.jpg)

## Appearance

The swamp aster has striking purple to pinkish-purple, daisy-like flowers with bright yellow centers, often growing in clusters. Its most distinctive feature is its robust, purplish-red stems, which give it a unique, vibrant look compared to other green-stemmed asters.

## Taxonomy

- **Kingdom:** Plantae
- **Phylum:** Tracheophyta
- **Class:** Magnoliopsida
- **Order:** Asterales
- **Family:** Asteraceae
- **Genus:** Symphyotrichum

## Interesting facts

- Even its scientific name, 'puniceum', means reddish-purple!
- It's a super late bloomer, bringing color when most other flowers are gone!
- Its seeds have tiny parachutes, letting them fly far on the wind!
- Some call it the 'Red-stemmed Aster' for its unique, colorful stalks!

## Special abilities

- **Water-Wise Roots:** Swamp aster can thrive in soggy soil thanks to special roots that are adapted to wet conditions, helping it survive in marshes.
- **Pollinator Beacon:** Its bright purple flowers are like a beacon, drawing in thirsty butterflies and bees for essential nectar.
- **Autumn Survivor:** Swamp aster blooms late in the year, providing a vital food source for insects when most other flowers have faded.

## Measurements & details

- **Height:** 90-180 cm
- **Spread:** 30-90 cm
- **Flower Size:** 2-5 cm
- **Bloom Season:** Late summer to fall
- **Edible:** No
- **Toxicity:** None
- **Lifecycle:** Perennial
- **Pollination Method:** Insect

## Ecological connections

- **Pollinates:** Honeybee (*Apis mellifera*) — Gathers nectar and pollen from flowers.
- **Pollinates:** [Common Eastern Bumble Bee](https://www.snappit.app/explore/common-eastern-bumble-bee) (*Bombus impatiens*) — Feeds on nectar, helping flower reproduction.
- **Pollinates:** [Monarch Butterfly](https://www.snappit.app/explore/monarch-butterfly) (*Danaus plexippus*) — Nectars on late-season blooms during migration.

## Traits

- [Deciduous](https://www.snappit.app/explore/traits/deciduous): Deciduous plants periodically shed all their leaves, typically during autumn or dry seasons.
- [Flowering](https://www.snappit.app/explore/traits/flowering): Flowering plants are any plants that produce flowers as part of their reproductive cycle.
- [Summer Blooming](https://www.snappit.app/explore/traits/summer-blooming): Summer blooming plants produce their flowers during the summer season, often providing vibrant color when many other plants have finished.
- [Colorful](https://www.snappit.app/explore/traits/colorful): Colorful describes organisms or objects displaying a wide range of bright and distinct colors.
- [Pollinator Magnet](https://www.snappit.app/explore/traits/pollinator-magnet): Describes plants that are particularly attractive and beneficial to a wide range of pollinating organisms.
- [Wetland](https://www.snappit.app/explore/traits/wetland): This habitat trait identifies species found in wetlands, which are areas of land saturated with water, either permanently or seasonally, including marshes, swamps, and bogs.

## Collections

- [Plants](https://www.snappit.app/explore/collections/plants)

## Safety

**Danger:** 1/5 · Very low

Always look but don't touch flowers without asking an adult first.

## Frequently Asked Questions

### How to identify swamp aster?

Start with the whole plant, then compare leaf arrangement, leaf edges, stems and any flowers or fruit. Opposite leaves grow in pairs; alternate leaves come one at a time along the stem. These details tell you far more together than a single green leaf does. Plant Identifier: upload a photo and compare the visible details.

### How tall is swamp aster?

90-180 cm

### How wide does swamp aster spread?

30-90 cm

### How big are the flowers on swamp aster?

2-5 cm

### When does swamp aster bloom?

Late summer to fall

### Is swamp aster edible?

No

### Is swamp aster toxic?

None

### What is swamp aster's lifecycle?

Perennial

## Where to spot

- [Penn-Roosevelt State Park](https://www.snappit.app/guides/places/penn-roosevelt-state-park) — Pennsylvania, US · State Park
- [Martin Luther King Junior Park](https://www.snappit.app/guides/places/martin-luther-king-junior-park) — Virginia, US · Park
- [Lower Madawaska River Provincial Park](https://www.snappit.app/guides/places/lower-madawaska-river-provincial-park) — Ontario, CA · State Park

[View all places to see swamp aster](https://www.snappit.app/guides/where-to-see/swamp-aster)

## More Plants

- [white snakeroot](https://www.snappit.app/explore/white-snakeroot) (*Ageratina altissima*)
- [tree-of-heaven](https://www.snappit.app/explore/tree-of-heaven) (*Ailanthus altissima*)
- [western sword fern](https://www.snappit.app/explore/western-sword-fern) (*Polystichum munitum*)
- [common milkweed](https://www.snappit.app/explore/common-milkweed) (*Asclepias syriaca*)

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Source: [Swamp Aster: Facts & Places to See — Snappit](https://www.snappit.app/explore/swamp-aster)