Top 10 Questions About Ornamental Grasses

Here at Gardening Know
we get lots of questions, and our goal is to provide answers to
those inquiries to the best of our ability. Ornamental
grass plants
are popular in the garden as well as our list of
inquiries. These easy-to-grow plants fit into many types of landscapes from
xeriscape to riparian. The following information includes the 10 most commonly
asked questions
about ornamental grasses

1. Is it possible to propagate offshoots from grasses?

There are various methods of propagating
ornamental grass
. Some ornamental grasses are divided, others come
true from seed and still others make babies or offsets. These offshoots are
tied to the mother plant lightly by small roots and once large enough can be
cut away from the parent. Take care that each offshoot has some nice, healthy
roots before planting them. Use clean, sharp instruments to make the cuts to
prevent disease and damage.

2. What is the best ornamental grass for shade?

Some of the prettiest ornamental
grasses perform well in shade
. Try Korean feather reed grass for an
impactful statement or some sweet little liriope for groundcover excellence.
Others that do well in shade might include Japanese forest grass, northern sea
oats, sweet flag, sedge, and mondo grass.

3. Can you grow ornamental grass in containers?

Ornamental grasses are stars of the landscape because they
come in a range of sizes, colors, light requirements and soil preferences. You
absolutely can grow
them in containers
with ease. Success depends on using the correct
soil, providing the right light and moisture levels and a container size that
can accommodate their growth. The little
are the easiest but even a giant pampas can be grown in a large

4. Can you overwinter fountain grasses?

Most varieties of fountain grass are
hardy to USDA zones 8 to 11, although a few can survive into zone 4. In
northern climates, it is best to use
them in containers and bring them indoors for winter
. Cut back the foliage in late winter to early spring to
allow for new blades and overall best appearance.

5. When should you prune or cut back ornamental grass?

are classed as cool or warm season, or evergreen. Warm
season grasses turn brown as weather gets colder and can be trimmed back at any
time. Cool season grasses may spend winter looking just beautiful but benefit
from trimming in early spring. Evergreen grasses need no trimming but comb
through the blades with your fingers to remove dead leaves and improve plant

6. When can I divide my grasses?

Divide warm season grasses in spring to mid-summer, cool
season plants in spring or early fall and evergreen types in spring. Always use
good tools and sanitation practices to prevent damage and disease transfer.

7. Why has the center of my pampas grass died?

This is a common condition in grasses and perennial plants.
It is an indicator that it is time to divide the grass. Usually, the center
stems die and fail to produce new shoots every 4 to 5 years, and the clump
needs to be dug up and cut into at least half. It could also be due to moisture
retention at the center of the clump. Plant the grass a bit high on a bed of
soil mixed with sand for extra drainage.

8. What should you fertilize fountain grass with?

One of the many wonderful things about ornamental grasses is
that they rarely need fertilizing. Fountain
may benefit from a 10-10-10 food in spring. Alternatively, use
organic amendments like leaf mold, compost, or mushroom manure. These will
break down naturally and gradually, gently feeding the roots of the grass.
Container plants will need feeding more frequently than those in the ground.

9. Ornamental grass will not bloom. Why?

Not all ornamental grasses have an obvious inflorescence.
However, if your species is one that gets those brilliant plumes and fails
to produce
, it may be the site conditions. Too much or too little
sun is often the culprit. Additionally, if you cut back the grass at the wrong
time of the year, you may have lopped off the developing plumes. The plant may
also be too young to flower or receive too much nitrogen. Ensure optimal
growing conditions and care for beautiful plumes.

10. How to keep ornamental grass from flopping over?

Excess nitrogen might be the cause of flopping
grass blades
. It might also be due to the plant needing division. If
the plant is too large, divide it every 3 to 4 years. Make sure the plant has
enough sunlight and cut it back at the appropriate time annually unless it is
an evergreen variety.

We all have questions now and then, whether long-time
gardeners or those just starting out. So if you have a gardening question, get a
gardening answer
. We’re always here to help.

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