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Ornamental Grass Care

Ornamental grasses can be used in almost any garden theme. The plants are easy to care for, provide 4 seasons of interest and are widely adaptable to many different conditions. Ornamental grasses are available for growing zones 3 to 11 and can grow between 6 inches tall, up to 6 feet tall! You can grow them in partial sunlight to full sunlight. There are several different types of grasses, but the main categories are cool season, warm season and evergreen. read more about cool season vs warm season grasses.

Planting Ornamental Grass

Choose a location that gets the proper amount of sunlight for the specific ornamental grass you have. Or be sure to choose the right type of grass for the location you have in mind. Getting the proper amount of sunlight is quite important. Also, be sure the soil is well-drained as most grasses do not like to stay wet, and prefer dry soil over being too wet. Ornamental grasses can help with erosion, provide 4 seasons of interest, and also do quite well in garden planters! 

Watering Ornamental Grass

Most ornamental grass will not require any additional water once the plant is established. If the plant is new or young, you may want to provide supplemental water with a hose or watering can once a week. Otherwise, most ornamental grass will thrive on little water and is quite drought tolerant. 

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Fertilizing Ornamental Grass

Most ornamental grass does not require fertilizer at all. There is more risk of over-fertilizing than the plant not getting enough nutrients. The main exception is if you choose to grow ornamental grass in containers outside. Often the soil will lack nutrients after a year or two, and a small application of fertilizer can help out quite a bit. If you are growing grass in the ground, fertilizer is more than likely not necessary. 

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Ornamental Grass Winter Care

We recommend leaving ornamental grass alone in the fall and early winter. This will allow the plants to give 4 seasons of interest in the garden. Most grasses require no care in the winter. If you don't cut the grass back, it can look quite beautiful once frost or snow covers the grass. It also provides great shelter for local animals living nearby.

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Cutting Back Ornamental Grass

Cutting back ornamental grass can help larger clumps be more healthy. Often the inside portion of large ornamental grasses will start to rot and grow into a ring shape. By cutting back the grass, it will help it grow new growth and get more air circulation to the inside of the clump, which can help prevent that part of the plant from rotting. We recommend cutting back the grass in late winter or early spring if you do choose to cut the grass back. 

Dividing Ornamental Grass

Once larger ornamental grasses become established, the plants become big enough to split and transplant into different locations. Some grasses actually benefit from dividing them, because the inside of the grass struggles to get enough sunlight and dry out between waterings. When this happens, the ornamental grass will start to rot in the middle, almost forming a ring of grass. It is beneficial to divide the plants every 2 to 3 years as each grass clump becomes larger. 

Dividing should be done in late winter or early spring before new growth starts to emerge. By the fall, each new clump of grass should become a nice new cluster of grass that looks fantastic in the garden. This is also a cost savings approach to gardening, as you won't need to purchase as many plants if you divide them instead.