Blue Eyed Grass – How to Grow , Care , Where to Plant (Sisyrinchium)

Blue Eyed Grass is one of the beautiful plants which have long leaves that’s why it is termed as grass at the end of its name.

They can be used in the corner or on the border of the garden.

This grass has periwinkle flowers that are small and look Stunning if grown in a big lawn. They add bright lavender color to a grassy landscape or garden. 

Background – Blue Eyed Grass

These plants are long lived grass plant but nowadays many of its species are in a position to be extinct. They come from the Iridaceae family and are discovered in Southeast US.

The Scientific name of this plant is Sisyrinchium, it has 70+ species and some of its species have long foliage that makes them a  grass plant, but they are not real grasses and but still they grow in many grass landscapes.

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The flowers in this plant grow in Bunch, and they are very simple looking plants , Its USDA hardiness zone is from 4 to 9.

There are many species of this plant and each has different flower colors like purple , blue ,yellow, white having yellow & white at the center.

In the United States there is one with white flower called by the name Western Blue eyed grass and another one with a yellow flower called by the name California Golden eyed grass.

Here is the Link to buy Blue Eyed Grass :

Blue Eyed Grass for SALE

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Blue Eyed Grass
Care and grow

How to Grow Blue Eyed Grass(Sisyrinchium)

To grow this grass you need to use good fertile soil to grow them and the only way to grow them is by using blue eyed plant seeds that need to be sow in soil with 5 mm depth. For its growth boost you can moist the seeds first then wrap it in a tissue paper and store it in the refrigerator for about 2-3 weeks.

Once you see any growth, transfer it into soil and sprinkle some water in the soil and make its soil moist. When these grass are seed form or younger they need low to medium moisture to grow.

Seeds generally takes around 1-5 months to germinate in that time care them with water and keep them moist , Also remember don’t put too much water in the soil to spoil the seeds.

When you see seedlings starting to grow , move its location to direct sunlight or half shade where it can get some sunlight to make food.

For Soil , its pH value should be over 5 to 6.6 , they will grow beautifully with slight acidic pH.

According to The University of Arkansas Division of Agriculture , it grows about 12 inches high with spine like leaves and in bottom it has very small rhizome.

(Sisyrinchium) Blue Eyed Grass Care

To care you need to provide them with water and keep an eye on them as they get dry. For its Proper growth these grasses require Soil to be moist and well drained.

On how to care blue eyed grass is to trim them whenever they blooms , cutting them to some inches, boosts its growth and also removes any dead leaves so no transfer of disease from one leaf to another.

It is also termed as invasive so it needs to trim back to its limited size so it doesn’t affect anyone.

Let me tell you caring is easy in this plant not that difficult , and these plants can tolerate many conditions easily.

In winters you can add organic mulch to your soil , as this mulch can provide many of the macro nutrients a plant needs to grow , generally required in flower blooming plants.

Mulch cover can be used to prevent plants from freezing at cold temperatures.  Also these plants can be propagated easily and make new plants from the existing one.

Here are the tips on how to grow blue eyed grass :


This grass loves being in low moisture soil,also it can adjust to medium humindudity as well but don’t make them stand in a high humid area as they will freeze there.


They love to stay in Full Sun , its growth is perfect in full sun but even if you don’t have 5-7 hours light it can also grow in partial shades (2-3 hours sun).


They want good drainage soil which shouldn’t trap water and block air circulation for plants.

You can use peat moss or compost to make it well draining soil and it will help this plant to provide enough water and also drain that water.


They want water from time to time whenever necessary and it also dries out every so often so it can successfully grow.


The only way they grow is using their seeds. They are also famous for self seeding but initially it takes time like 1-4 months for them to grow at a certain height.

Season of Bloom

The flowering season of this grass is Winter and spring but it looks good as they provide greener gardens but yes the flower can add more beauty to it.


It has 1-2 feet(30-60cm) in height (tall) and spreads about 0.5 to 0.9 feet (20-29 cm) wide.

Here is the Link to buy Blue Eyed Grass :

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(Sisyrinchium) Blue Eyed Grass Propagation

These plant can be propagated by 2 methods and both method can work if you follow correctly.

Here is on how to propagate blue eyed grass :


You can propagate it using seeds , that you can purchase from online websites and also from nearby nursery or plant stores. Once you get the seed you need to sow them in the soil with 4-5 mm depth, that depth is necessary as plant seed will be taking 1-5 months to germinate and that is a long time , once they germinate it will grow faster.


This can also be propagated using its rhizomes as this plant spreads its root about 1 feet approx. These rhizomes can be divided and sow them in new pots so they can become new plants. This is a very simple method and you can do it very easily but make sure water is more often as this plant wants its soil to be moist. 

How to Propagate (Sisyrinchium)
How to Propagate (Sisyrinchium)

(Sisyrinchium) Blue Eyed Grass Pruning

On how to prune blue eyed grass is to get a clean tool to cut its top leaves & flowers and pruning can be done after the flower started to fade. The Pruning is necessary so that we can remove the dead foliage and also the diseases. Pruning in this grass can make sure a healthy foliage.

Most Search Questions

when does blue-eyed grass bloom ? This plant blooms in starting of summer and till fall , You will also see it blooming in late spring. There are many variety of this plant that can we see blooms longer period of time and they reach the height of 9-12 inches tall. One Variety which is Lucerne grows in Asia Financial center Switzerland and they have bigger flowers compared to its other species. 

Eastern blue-eyed grass ? It is one of the varieties of Iris Family, They are also the same grass like plants but what is different is that it grows 20 inches tall and with the cluster of 6 petals all are blue with yellowish at the center.

Blue-eyed grass scientific name of this grass plant is Sisyrinchium atlanticum; it has pale green foliage.

Blue-eyed grass uses ? According to the National Park Service (US dept), it is used in Coast Miwok and Ohlone , One used it to resolve stomach aches and one used it to reduce fever by making a special tea using this plant.

According to University of Florida EDIS, These are used in many problems one is diarrhea in children , In North America is used to resolve stomach related digestive problems by Different tribes.

It can be dangerous if you eat similar-looking plants that are toxic and not safe to eat.

Caution: please first take advice from a doctor & plant expert, Do not try at home.

Blue-eyed grass seeds are easy to care  , you need to grow them in a well drained fertile soil but growing them requires patience as they grow slow when they are seed form, it will take about 1-4 months for the seeds to germinate, and once the seedlings appear this grass will grow faster & they are long existing grass so pruning and growing will increase its life.

Blue-eyed grass scientific name is Sisyrinchium angustifolium According to University of florida EDIS , these plants grow in clusters and has purple blue flower and they looks nice with its narrow spine leaves.

Blue-eyed grass native to Florida according to University of Florida IFAS Extension and Also It is Native to The New World according to University Avenue Extension.  In Wikipedia, New world is referred to as The majority part of western hemisphere of the Globe and Specially the American Region.

Blue eyed grass for sale is on many websites and it is also very popular among gardeners, you can get your grass cum flower plant seed from here or you can search for an offline nearby nursery or garden plant store.

Blue-eyed grass Florida is one of the most common plant grows in this region,they are evergreen long lived plants and they bloom throughout the summer and till the end of fall season. Its Grass leaves add a beautiful look to it and they are very strong plants which can tolerate many harsh conditions.

Blue-eyed grass flower meaning it blooms a blue flower with yellowish center, blue-eyed grass can be tall  as 1 feet in height and spreads slightly less than 1 feet.


Does Blue Eyed Grass spread? Yes blue eyed grass spreads about 20-25 cm and It has very thick rhizomes which are the part where roots grow and stem is connected to it, they grow and spread to and make a new plant rhizome then eventually a new plant. If you do grow this plant with seeds then it will take time to make seedlings but yes the germination happens in the same year and in that year you will also have flowers also.

Is Blue Eyed Grass a perennial? Yes, According to USDA govt portal , the blue eyed grass is a perennial plant or herb but it is never be termed as a grass, its common names do make it as a grass plant but its not.

Does Blue Eyed Grass spread? Yes blue eyed grass spreads about 20-25 cm and It has very thick rhizomes which are the part where roots grow and stem is connected to it, they grow and spread to and make a new plant rhizome then eventually a new plant. If you do grow this plant with seeds then it will take time to make seedlings but yes the germination happens in the same year and in that year you will also have flowers also.

How do you grow blue eyed grass from seed? To grow this plant first prepare well drained soil and put this in a small pot, sow the blue eyed grass seeds and sprinkle some water, daily do this to keep them moist. It will take from 30 days to 4 months to show germination so don’t worry maintain patience, after that it will grow faster once seedlings appear. It will bloom in the same year and you will see the beautiful flowers in your garden.

How do you take care of sisyrinchium? They actually need less care and care, require good moist soil and don’t be lazy and do watering more frequently and make sure your plant doesn’t dry out. Do pruning to make it healthy by removing dead or pale leaves. Also change soil every 2 years and mix compost it will provide extra nutrients that plant needs.

Is Blue Eyed Grass edible? According to the University of Florida , many american used this plant as a tea to rectify their digestive issues including diarrhea and also used to lower the effects of fever according to the National park Service.

How tall are blue eyed grass? According to The University of Arkansas Division of Agriculture , it can grow 12 inches tall ( 1 feet)  and blue eyed grass have narrow grass like leaves with a blue color flower which looks amazing.

Where does Sisyrinchium(Blue Eyed Grass) grow? It can grow in ground , garden , medium pot and needs good draining soil with slightly acidic soil means pH 5 to 6.5( fertilizer is used to make it acidic) and proper sunlight of 5-7 hours will make this plant grow faster and grow healthy.

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Amelia Clark

I'm Amelia Clark , a seasoned florist and gardening specialist with more than 15 years of practical expertise. Following the completion of my formal education, I dedicated myself to a flourishing career in floristry, acquiring extensive understanding of diverse flower species and their ideal cultivation requirements. Additionally, I possess exceptional skills as a writer and public speaker, having successfully published numerous works and delivered engaging presentations at various local garden clubs and conferences. Check our Social media Profiles: Facebook Page, LinkedIn, Pinterest, Youtube, Instagram Tumblr

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