# common water hyacinth (*Pontederia crassipes*)

The common water hyacinth is a beautiful floating plant with large, purple flowers. It grows on water and can make ponds look like a magical garden!

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

![common water hyacinth](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/FLOR_da_%C3%81GUA_-_FLOWER_WATER_-_panoramio.jpg&width=800)

Photo: Ivandro batista de q…, CC BY 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:FLOR_da_%C3%81GUA_-_FLOWER_WATER_-_panoramio.jpg)

## Appearance

The common water hyacinth has glossy, rounded green leaves that float on the water's surface, supported by bulbous, air-filled petioles. Its striking purple-blue flowers feature six petals, with one larger petal displaying a prominent yellow spot, making it easily distinguishable.

## Taxonomy

- **Kingdom:** Plantae
- **Phylum:** Tracheophyta
- **Class:** Liliopsida
- **Order:** Commelinales
- **Family:** Pontederiaceae
- **Genus:** Pontederia

## Interesting facts

- A single plant can produce thousands of seeds in a year.
- It's one of the fastest-growing plants on Earth!
- Its roots can grow up to 60 cm long underwater.
- Water hyacinth can double its population size in just two weeks!

## Special abilities

- **Floating Power:** Common water hyacinth has bulbous, air-filled petioles that keep its leaves and flowers afloat, allowing it to thrive on water surfaces.
- **Super Spreader:** Common water hyacinth can reproduce both by seeds and stolons, quickly forming dense mats that cover vast areas.
- **Water Purifier:** Common water hyacinth can absorb heavy metals and pollutants from the water through its roots, acting as a natural filter.

## Measurements & details

- **Height:** 10-100 cm
- **Spread:** 20-60 cm
- **Flower Size:** 3-5 cm
- **Bloom Season:** Spring to fall
- **Edible:** No
- **Toxicity:** None
- **Lifecycle:** Perennial
- **Pollination Method:** Insect

## Ecological connections

- **Eaten by:** water hyacinth weevil (*Neochetina eichhorniae*) — Larvae and adults feed on plant tissue.
- **Eaten by:** water hyacinth weevil (*Neochetina bruchi*) — Larvae and adults feed on plant tissue.
- **Eaten by:** Nile Tilapia (*Tilapia nilotica*) — Browses on young plants and roots.

## Traits

- [Flowering](https://www.snappit.app/explore/traits/flowering): Flowering plants are any plants that produce flowers as part of their reproductive cycle.
- [Ornamental](https://www.snappit.app/explore/traits/ornamental): Ornamental plants are cultivated primarily for their aesthetic appeal, enhancing landscapes and gardens with their attractive foliage, flowers, or form.
- [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.
- [Broadleaf Tree](https://www.snappit.app/explore/traits/broadleaf-tree): Broadleaf trees are angiosperms characterized by flat, wide leaves that are typically shed annually in temperate climates.
- [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.
- [Rapid Growing](https://www.snappit.app/explore/traits/rapid-growing): Rapid growing plants exhibit accelerated growth rates, quickly increasing in size and biomass within a short period.
- [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.
- [Aquatic](https://www.snappit.app/explore/traits/aquatic): Aquatic habitats encompass environments where organisms live predominantly in water, including oceans, rivers, lakes, and wetlands.
- [Invasive](https://www.snappit.app/explore/traits/invasive): Invasive species are non-native organisms that cause harm to the environment, economy, or human health.

## Collections

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

## Safety

**Danger:** 1/5 · Very low

Do not touch or pull plants without adult supervision, as some may have sharp edges.

## Frequently Asked Questions

### How to identify common water hyacinth?

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 common water hyacinth?

10-100 cm

### How wide does common water hyacinth spread?

20-60 cm

### How big are the flowers on common water hyacinth?

3-5 cm

### When does common water hyacinth bloom?

Spring to fall

### Is common water hyacinth edible?

No

### Is common water hyacinth toxic?

None

### What is common water hyacinth's lifecycle?

Perennial

## Where to spot

- [Alabama City Wall Street Historic District](https://www.snappit.app/guides/places/alabama-city-wall-street-historic-district) — Alabama, US · Historic District
- [Gadsden Downtown Historic District](https://www.snappit.app/guides/places/gadsden-downtown-historic-district) — Alabama, US · Historic District
- [Lock and Dam No. 12](https://www.snappit.app/guides/places/lock-and-dam-no-12) — Iowa, US · Historic Site
- [Georgia Avenue-Butler Avenue Historic District](https://www.snappit.app/guides/places/georgia-avenue-butler-avenue-historic-district) — South Carolina, US · Historic District
- [Locke](https://www.snappit.app/guides/places/locke) — California, US · Historic District
- [Main–Yankee Street Historic District](https://www.snappit.app/guides/places/main-yankee-street-historic-district) — Alabama, US · Historic District

[View all places to see common water hyacinth](https://www.snappit.app/guides/where-to-see/common-water-hyacinth)

## 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: [Common Water Hyacinth: Facts & Places to See — Snappit](https://www.snappit.app/explore/common-water-hyacinth)
