Gardena Willows Wetland Preserve
and Mother Nature’s Backyard

1201 W. 170th Street,
Gardena, CA 90247

A wooded path and a bridge through the marsh on a sunny day.
The Gardena Willows Wetland Preserve is constantly shifting between cool deep shade and bright hot sun. (Image taken in late July)
Delicate soft pink flowers of the ashy leafed buckwheat grow in a sunny garden.
The buckwheats at the Preserve are off the charts. This one is an ashy leafed buckwheat. (image taken in late July)

Established:
2007

Size:
13.6 acres

Features:
Walking trails
Wetlands
Zig Zag bridge
Frogs
classes
medicinal and edible plants

Best time to visit:
Spring summer and Fall
Spring and summer are filled with flowers and then later in the year, berries. A walk through the shady preserve is a perfect thing to do on a warm summer day. In the fall the grapes and cottonwoods give a show of bright seasonal color.

In the 1970’s the plan was to turn this remnant of Domeguez Slough wetlands into a convention center. The local residents fought the city citing the site’s importance as a green oasis, as a historical link to the ecological history of Los Angeles, role in cleaning run off water before it reaches the Domingues Channel and extreme value to both migratory and permanent residence animal life. While this may seem like a lot to ask of a small isolated wetland that only covers 13.6 acres, this is what wetlands do. They are incredibly important habitats and support so many species. They are considered the “kidneys of the environment” for their ability to clean and process water.

While walking along the trails that run through the preserve, visitors can experience the different micro habitats that make up a marsh, the aquatic, riparian and upland. Even in this smaller area, the differences between the zones is stark. The aquatic and riparian areas are lush, green and cool. They are filled with willows, cottonwoods, grapes, and tulles.

In early summer these areas get covered in the white fluffy seed heads of the willows. Entire areas will be covered, looking like the trees and bushes are covered in a layer of frost.

 A lovely raised zigzag bridge takes visitors across the center of the marsh and through the deep green foliage. The upland sections, which are dryer and sunnier, are filled with oak trees, wild roses, holy leaf cherry, sages, buckwheats and bunch grasses.

The preserve is filled with insects, frogs and lizards. It is notably home to the pacific tree frog, which while the most abundant frog in western North America, is a frog which automatically makes this super cool.

Grapes grow in the shade of a cottonwood tree in summer.
The different layers of the marsh, aquatic, riparian and upland, and their accompanying plants, are easy to see here. (Image taken in late July)
Bright red berries of the Catalina Cherry tree grow by a sunny path.
While spring is the time of stunning flowers, the berries that often follow are equally beautiful. (Image taken in late July)

The western side of the Preserve is home to “Mother Nature’s Garden” which is a 2,500 square foot demonstration garden filled with beautiful mature plants. One highlight being the espaliered toyon planted against the back wall of the preserve. The demonstration garden also has medicinal plants, edible and those that can be used for dying cloth. The garden often produces choke cherry jelly from the western chokecherry plant. It has a lovely cherry flavor and bright red color.

This garden plan, from 2012 Shows how the garden has changed and grown as the plants mature.

One of the joys of gardening is watching all your best laid plans be completely ignored by everything you plant.

The garden was designed with an emphasis on reducing water consumption, rainwater capture/infiltration and efficient irrigation methods. The paths are made of water permeable materials, the site has several rain barrels, french drains and other groundwater filtration features. These materials were chosen not only for their water saving merits but also to be readily available to home owners.

A sunny garden image showing blooming buckwheat plants, with white and pink flowers. Narrow leaf milkweeds, a tree and a wall are in the background.
I wasn’t exaggerating, look at how amazing these buckwheats are. (Image taken in late July)

Gardena Willows Wetlands Preserve was originally a part of the complex and extensive wetland system that linked the site of the preserve with Harbor Lake, Bixby Marsh, Madrona Marsh and, eventually, the Pacific Ocean, called the Dominguez Slough. This watershed has been almost entirely destroyed through development and urbanization. These remnant marshes and preserves are all that is left.

The site of the preserve was known to be an important area for the Tongva. When the area was being dredged in the 1940’s many Tongva artifacts were discovered, which confirmed the historical cultural importance of the area. Unfortunately, white the Natural History Museum was contacted, the artifacts were stolen before they could be examined and recorded.

During the Spanish and, later, the Mexican occupation, much of the surrounding area was used for cattle grazing and was named Sausal Redondo. After a series of bad droughts in 1875 and 1876 the land was sold and used successfully for dry-farming barley. It was not until the 1920’s that the area began to be developed for housing and large portions were drained.

In the 1970’s the city planned to fill in the last remaining section of the wetlands and replace it with a convention center. The local residents fought the city “to preserve its value as a green oasis, an historical vestige of the past, a migratory stop for ducks and other migrants, a permanent home for resident bird species, a safe haven for the frogs and other amphibians who live there, and a vital mechanism that cleans street water runoff before it reaches the Dominguez Channel and eventually, the Pacific Ocean.” The community won and the preserve was created.

The Preserve has undergone large amounts of restoration, after its creation in 1998, the city received 1.2 million dollars of federal funding to restore the site. This process included removing vast amounts of invasive and non native plants and trees. Volunteers planted native plants around the preserve. Despite the volunteer efforts, support of the city is intermittent. It wasn’t until 2021 that local political support created two posts of Naturalists for the wetlands and there are hopes of further support for the project.

Bright orange Viceroy Butterflies in front of a willow tree.
Marshland is so important for so many species. These Viceroy butterflies are dependent on the Fremont cottonwood tree, which is found in abundance here in the preserve. (Image taken in late July)
Bright red rose hips on a California Wild rose bush in the sunshine.
The beautiful flowers of the wild rose are succeeded by the equally lovely rose hips. (Image taken in late July)

Gardena Willows Wetland Preserve
and Mother Nature’s Backyard

1201 W. 170th Street,
Gardena, CA 90247

A wooded path and a bridge through the marsh on a sunny day.
The Gardena Willows Wetland Preserve is constantly shifting between cool deep shade and bright hot sun. (Image taken in late July)
Delicate soft pink flowers of the ashy leafed buckwheat grow in a sunny garden.
The buckwheats at the Preserve are off the charts. This one is an ashy leafed buckwheat. (image taken in late July)

Established:
2007

Size:
13.6 acres

Features:
Walking trails
Wetlands
Zig Zag bridge
Frogs
classes
medicinal and edible plants

Best time to visit:
Spring summer and Fall
Spring and summer are filled with flowers and then later in the year, berries. A walk through the shady preserve is a perfect thing to do on a warm summer day. In the fall the grapes and cottonwoods give a show of bright seasonal color.

In the 1970’s the plan was to turn this remnant of Domeguez Slough wetlands into a convention center. The local residents fought the city citing the site’s importance as a green oasis, as a historical link to the ecological history of Los Angeles, role in cleaning run off water before it reaches the Domingues Channel and extreme value to both migratory and permanent residence animal life. While this may seem like a lot to ask of a small isolated wetland that only covers 13.6 acres, this is what wetlands do. They are incredibly important habitats and support so many species. They are considered the “kidneys of the environment” for their ability to clean and process water.

While walking along the trails that run through the preserve, visitors can experience the different micro habitats that make up a marsh, the aquatic, riparian and upland. Even in this smaller area, the differences between the zones is stark. The aquatic and riparian areas are lush, green and cool. They are filled with willows, cottonwoods, grapes, and tulles.

 In early summer these areas get covered in the white fluffy seed heads of the willows. Entire areas will be covered, looking like the trees and bushes are covered in a layer of frost.


 A lovely raised zigzag bridge takes visitors across the center of the marsh and through the deep green foliage. The upland sections, which are dryer and sunnier, are filled with oak trees, wild roses, holy leaf cherry, sages, buckwheats and bunch grasses.

The preserve is filled with insects, frogs and lizards. It is notably home to the pacific tree frog, which while the most abundant frog in western North America, is a frog which automatically makes this super cool. 

Grapes grow in the shade of a cottonwood tree in summer.
The different layers of the marsh, aquatic, riparian and upland, and their accompanying plants, are easy to see here. (Image taken in late July)
Bright red berries of the Catalina Cherry tree grow by a sunny path.
While spring is the time of stunning flowers, the berries that often follow are equally beautiful. (Image taken in late July)

The western side of the Preserve is home to “Mother Nature’s Garden” which is a 2,500 square foot demonstration garden filled with beautiful mature plants. One highlight being the espaliered toyon planted against the back wall of the preserve. The demonstration garden also has medicinal plants, edible and those that can be used for dying cloth. The garden often produces choke cherry jelly from the western chokecherry plant. It has a lovely cherry flavor and bright red color.

This garden plan, from 2012 Shows how the garden has changed and grown as the plants mature.

One of the joys of gardening is watching all your best laid plans be completely ignored by everything you plant.

The garden was designed with an emphasis on reducing water consumption, rainwater capture/infiltration and efficient irrigation methods. The paths are made of water permeable materials, the site has several rain barrels, french drains and other groundwater filtration features. These materials were chosen not only for their water saving merits but also to be readily available to home owners. 

A sunny garden image showing blooming buckwheat plants, with white and pink flowers. Narrow leaf milkweeds, a tree and a wall are in the background.
I wasn’t exaggerating, look at how amazing these buckwheats are. (Image taken in late July)
Gardena Willows Wetlands Preserve was originally a part of the complex and extensive wetland system that linked the site of the preserve with Harbor Lake, Bixby Marsh, Madrona Marsh, and eventually, the Pacific Ocean, called the Dominguez Slough. This watershed has been almost entirely destroyed through development and urbanization. These remnant marshes and preserves are all that is left.

The site of the preserve was known to be an important area for the Tongva.  When the area was being dredged in the 1940’s many Tongva artifacts were discovered, which confirmed the historical cultural importance of the area. Unfortunately, white the Natural History Museum was contacted, the artifacts were stolen before they could be examined and recorded.

During the Spanish and, later, the Mexican occupation, much of the surrounding area was used for cattle grazing and was named Sausal Redondo. After a series of bad droughts in 1875 and 1876 the land was sold and used successfully for dry-farming barley. It was not until the 1920’s that the area began to be developed for housing and large portions were drained.

In the 1970’s the city planned to fill in the last remaining section of the wetlands and replace it with a convention center. The local residents fought the city “to preserve its value as a green oasis, an historical vestige of the past, a migratory stop for ducks and other migrants, a permanent home for resident bird species, a safe haven for the frogs and other amphibians who live there, and a vital mechanism that cleans street water runoff before it reaches the Dominguez Channel and eventually, the Pacific Ocean.” The community won and the preserve was created.

The Preserve has undergone large amounts of restoration, after its creation in 1998, the city received 1.2 million dollars of federal funding to restore the site. This process included removing vast amounts of invasive and non native plants and trees. Volunteers planted native plants around the preserve. Despite the volunteer efforts, support of the city is intermittent. It wasn’t until 2021 that local political support created two posts of Naturalists for the wetlands and there are hopes of further support for the project.

Bright orange Viceroy Butterflies in front of a willow tree.
Marshland is so important for so many species. These Viceroy butterflies are dependent on the Fremont cottonwood tree, which is found in abundance here in the preserve. (Image taken in late July)
Bright red rose hips on a California Wild rose bush in the sunshine.
The beautiful flowers of the wild rose are succeeded by the equally lovely rose hips. (Image taken in late July)

Gardena Willows Wetland Preserve
and Mother Nature’s Backyard

1201 W. 170th Street,
Gardena, CA 90247

A wooded path and a bridge through the marsh on a sunny day.
The Gardena Willows Wetland Preserve is constantly shifting between cool deep shade and bright hot sun. (Image taken in late July)

Established:
2007 Size:
3.5 acres

Size:
3.5 acres

Features:
Walking trails
Wetlands
Zig Zag bridge
Frogs
classes
medicinal and edible plants

Best time to visit:
Spring summer and Fall
Spring and summer are filled with flowers and then later in the year berries. A walk through the shady preserve is a perfect thing to do on a warm summer day. In the fall the grapes and cottonwoods give a show of bright seasonal color.

In the 1970’s the plan was to turn this remnant of Domeguez Slough wetlands into a convention center. The local residents fought the city citing the site’s importance as a green oasis, as a historical link to the ecological history of Los Angeles, role in cleaning run off water before it reaches the Domingues Channel and extreme value to both migratory and permanent residence animal life. While this may seem like a lot to ask of a small isolated wetland that only covers 13.6 acres, this is what wetlands do. They are incredibly important habitats and support so many species. They are considered the “kidneys of the environment” for their ability to clean and process water.

While walking along the trails that run through the preserve, visitors can experience the different micro habitats that make up a marsh, the aquatic, riparian and upland. Even in this smaller area, the differences between the zones is stark. The aquatic and riparian areas are lush, green and cool. They are filled with willows, cottonwoods, grapes, and tulles.

Delicate soft pink flowers of the ashy leafed buckwheat grow in a sunny garden.
The buckwheats at the Preserve are off the charts. This one is an ashy leafed buckwheat. (image taken in late July)

In early summer these areas get covered in the white fluffy seed heads of the willows. Entire areas will be covered, looking like the trees and bushes are covered in a layer of frost.

A lovely raised zigzag bridge takes visitors across the center of the marsh and through the deep green foliage. The upland sections, which are dryer and sunnier, are filled with oak trees, wild roses, holy leaf cherry, sages, buckwheats and bunch grasses.

The preserve is filled with insects, frogs and lizards. It is notably home to the pacific tree frog, which while the most abundant frog in western North America, is a frog which automatically makes this super cool.

Grapes grow in the shade of a cottonwood tree in summer.
The different layers of the marsh, aquatic, riparian and upland, and their accompanying plants, are easy to see here. (Image taken in late July)

The western side of the Preserve is home to “Mother Nature’s Garden” which is a 2,500 square foot demonstration garden filled with beautiful mature plants. One highlight being the espaliered toyon planted against the back wall of the preserve. The demonstration garden also has medicinal plants, edible and those that can be used for dying cloth. The garden often produces choke cherry jelly from the western chokecherry plant. It has a lovely cherry flavor and bright red color.

Bright red berries of the Catalina Cherry tree grow by a sunny path.
While spring is the time of stunning flowers, the berries that often follow are equally beautiful. (Image taken in late July)

This garden plan, from 2012 Shows how the garden has changed and grown as the plants mature. One of the joys of gardening is watching all your best laid plans be completely ignored by everything you plant.

The garden was designed with an emphasis on reducing water consumption, rainwater capture/infiltration and efficient irrigation methods. The paths are made of water permeable materials, the site has several rain barrels, french drains and other groundwater filtration features. These materials were chosen not only for their water saving merits but also to be readily available to home owners.

A sunny garden image showing blooming buckwheat plants, with white and pink flowers. Narrow leaf milkweeds, a tree and a wall are in the background.
I wasn’t exaggerating, look at how amazing these buckwheats are. (Image taken in late July)

Gardena Willows Wetlands Preserve was originally a part of the complex and extensive wetland system that linked the site of the preserve with Harbor Lake, Bixby Marsh, Madrona Marsh and, eventually, the Pacific Ocean, called the Dominguez Slough. . This watershed has been almost entirely destroyed through development and urbanization. These remnant marshes and preserves are all that is left.

The site of the preserve was known to be an important area for the Tongva. When the area was being dredged in the 1940’s many Tongva artifacts were discovered, which confirmed the historical cultural importance of the area. Unfortunately, white the Natural History Museum was contacted, the artifacts were stolen before they could be examined and recorded.

During the Spanish and, later, the Mexican occupation, much of the surrounding area was used for cattle grazing and was named Sausal Redondo. After a series of bad droughts in 1875 and 1876 the land was sold and used successfully for dry-farming barley. It was not until the 1920’s that the area began to be developed for housing and large portions were drained.

Bright red berries of the Catalina Cherry tree grow by a sunny path.
Marshland is so important for so many species. These Viceroy butterflies are dependent on the Fremont cottonwood tree, which is found in abundance here in the preserve. (Image taken in late July)

In the 1970’s the city planned to fill in the last remaining section of the wetlands and replace it with a convention center. The local residents fought the city “to preserve its value as a green oasis, an historical vestige of the past, a migratory stop for ducks and other migrants, a permanent home for resident bird species, a safe haven for the frogs and other amphibians who live there, and a vital mechanism that cleans street water runoff before it reaches the Dominguez Channel and eventually, the Pacific Ocean.” The community won and the preserve was created.

The Preserve has undergone large amounts of restoration, after its creation in 1998, the city received 1.2 million dollars of federal funding to restore the site. This process included removing vast amounts of invasive and non native plants and trees. Volunteers planted native plants around the preserve. Despite the volunteer efforts, support of the city is intermittent. It wasn’t until 2021 that local political support created two posts of Naturalists for the wetlands and there are hopes of further support for the project.

Bright red berries of the Catalina Cherry tree grow by a sunny path.
The beautiful flowers of the wild rose are succeeded by the equally lovely rose hips. (Image taken in late July)
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Opening Hours:
Every second Sunday
1PM- 4 PM
Every fourth Saturday
9AM – 12 PM

Check their instagram
for exact dates

Detail image of a buckwheat heddge covered in white puffy flowers.
In case we needed another reason to love buckwheats, they can grow to be about 4 feet tall, which make incredible hedges, like the ones found here. (Image taken in late July)
A garden in bloom in front of a wall.
Even in the heat of summer, look at all different colors that are possible with our native plants. (Image taken in late July)
A small dirt path runs through a dappled shade of a mature garden filled with shrubs and bushes.
The different micro habitats in the preserve change so quickly. (Image taken in late July)
Three plants that all have lovely scents to them. (Image taken in late July)
A coast live oak looks covered in frost, but is covered in willow seeds.
The seed heads of the willows turn summer into a winter frost. (Image taken in late July)
Clusters of white buckwheat flowers in a sunny garden.
One of my favorite things about buckwheats are how lovely the seed heads look as they dry. It makes leaving them as bird food even easier.  (Image taken in late July)
A golden bush growing a preserve with the beginning of yellow flowers.
Goldenbush is one of those plants that bloom through the fall. (Image taken in late July)
A dirt path runs through a sunny preserve lines with willow trees.
These beautiful willows will get a lovely yellow fall color. (Image taken in late July)
A bridge runs through a willow filled marsh in the summer.
The density and lushness of the wetlands is astounding. (image taken in late July)
A view of the marsh, filled with grape vines and willow trees.
Look at all those grapes! (image taken in late July)
Ashy leaf buckwheats grow with coffee berries, California fuchsia and toyon in a sunny garden.
The addition of grasses in a garden, interspersed with shrubs, create some of the most beautiful sections of a garden. (Image taken in late July)
Detail image of the blooms of a ashy leaf buckwheat in dappled shade.
A detail from the same location. (Image taken in late July)
Grape vines grow in a patch of sunlight in the shady marsh.
The preserve has so many moments of deep shade and dappled light. (image taken in late July)
Willows and grapes growing in the shade in the marsh.
Wetlands demonstrate how much diversity there is in Los Angeles. (image taken in late July)
A wild garden scene with bushes and flowering plants in the summer.
Sea cliff buckwheats (the ones with the white flowers) are the host plant for the endangered El Segundo Blue Butterfly. (Image taken in late July)
Clusters of white buckwheat flowers in a sunny garden.
Combined together, buckwheats and sage brush really bring out the beauty of summer dormancy.  (image taken in late July)
A planting of buckwheat and Californian Sage brush grow at the edge of a marsh.
What a wonderful thing that this space was preserved! (image taken in late July)
A sunny view of a dirt path, the wetlands behind and flowers on wither side.
What a beautiful place…. (image taken in late July)
A small willow tree growing at the edge of the marsh.
Willows are such a cool plant. Great for habitat and really pretty! (image taken in late July)
A bridge runs through a willow filled marsh in the summer.
The zig zag bridge gives a delightful opportunity to walk through the canopy of the wetlands! (image taken in late July)
A sunny view of mature shrubs in the summer.
Here you can see some really classic coastal sage scrub plant combinations. (image taken in late July)
Another beautiful transition from shade to sun. (image taken in late July)
Delicate soft pink flowers of the ashy leafed buckwheat grow in a sunny garden.
Ashy leaf buckwheats have a slightly different structure than other buckwheats plus such a beautiful color pallet.  (Image taken in late July)
A California Buckwheat growing in a field with golden bush in the background.
Seacliff buckwheats also make a lovely meadow plant (ignore the invasive grass in this one though) (Image taken in late July)
The paths were a little overgrown when I visited, but it made the garden feel wild and magical.  (Image taken in late July)
Pink and white clusters of buckwheat flowers in a sunny summer garden.
I mean come on, look how delightful they are.  (Image taken in late July)
Saint Catherine's lace and California Buckwheat in full bloom in a dappled shade garden.
California is so lucky to have such incredible diversity of buckwheats. On the left is a Saint Catherine’s lace and on the right is a California buckwheat. They are both so amazing. (Image taken in late July)
A mature coffee berry grows with sedges in a sunny garden.
Coffee berry is a slower growing plant but stunningly pretty and like to grow in the shade. (Image taken in late July)
Yellow coastal sunflowers grow in front of a sugarbush in the sun.
Such a classic coastal sage scrub scene. (Image taken in late July)
A shady path through an oak woodland.
There is so much wonderful deep shade in the wetlands making it a great destination on hot days. (Image taken in late July)
A grape grows in dappled shade of willow trees.
This shows the transition from riparian areas to the upload areas with the oak woodland. (Image taken in late July)
An oak tree growing in a preserve.
Oak woodlands have such a unique aesthetic. (Image taken in late July)
Grape vines grow along the ground in the sun with the shady marsh in the background.
I love the areas of transition, like this, in the preserve. It has its own kind of magic. (Image taken in late July)
A wild garden scene with bushes and flowering plants in the summer.
Coastal sunflower, seacliff buckwheat and coyote bush are all super important habitat plants that all bloom at different times of the year. (Image taken in late July)
A California Buckwheat growing at the edge of the preserve with golden bush in the background.
Another seacliff buckwheat in the upland section of the preserve. It is such a hardy pretty plant. (Image taken in late July)
A bridge runs through a willow filled marsh in the summer.
Willows over the zigzag bridge. (Image taken in late July)
Toyon and Coast Live Oak grow together in dappled shade.
Oaks and toyons are a classic combination. They grow so well together and are both super important habitat plants. (Image taken in late July)
A bladder pod grows in a preserve in the summer.
Places like this preserve show us that it is possible to rebuild the ecosystem within the borders of intense human habitation. (Image taken in late July)
A spiky chaparral yucca grows in the dried stems of a purple sage in the sun.
Summer dormancy creates a whole new aesthetic for plants. What a few months earlier was soft and green, is now hunkered down for the harsher conditions of summer and fall. (Image taken in late July)
Mugwort growing by a garden path at the edge of a woodland.
Mugwort, willows and sycamores. (image taken in late July)
A view of the marsh, filled with grape vines and willow trees.
The lush wetland section of the preserve. (Image taken in late July)
Coyote bush grows that the edge of an oak woodland.
It is hard to believe that these two images were taken on the same 13.6 acres. (Image taken in late July)
A branch of bladder pod with yellow flowers and light green seed bladders grows in the dappled shade with white soap flower blooms in the background.
A little bladder pod plant with soap plants blooming in the background. (Image taken in late July)
Mugwort grows by a dirt garden path in dappled sunlight with a small bridge in the background.
Look at these cool little mugworts. They are such a neat plant. (Image taken in late July)
A chaparral yucca grows with sages in a preserve in the summer.
The chaparral yucca is definitely underrated as a barrier plant. Those spines are super sharp. (Image taken in late July)
Clusters of white buckwheat flowers in a sunny garden.
Sea cliff buckwheat flowers turning to that lovely dried rust color. (Image taken in late July)