How Far Apart to Plant Karl Foerster Grass?

There is no definitive answer to this question as it will depend on the specific conditions of your garden and the size of the Karl Foerster grass plants you are hoping to grow. However, as a general guide, it is recommended that you space your plants around 30-45cm (12-18in) apart when planting them in rows, or 45-60cm (18-24in) apart if you are planting them in clusters. With proper care and attention, your Karl Foerster grass should thrive and provide you with beautiful blooms for many years to come.

If you’re looking for a versatile, easy-to-grow grass that will provide beautiful texture and color to your garden, look no further than Karl Foerster grass. This tough little plant is perfect for both sun and shade, making it a great option for nearly any landscape. And while it’s tolerant of most soil types, it really thrives in well-drained soil with moderate fertility.

When planting Karl Foerster grass, the main thing to keep in mind is spacing. These plants grow quickly and can spread up to 2 feet per year, so you’ll need to give them plenty of room to fill out. A good rule of thumb is to plant each clump about 18 inches apart.

This will allow the plants ample space to mature without crowding out other nearby plants.

When to Plant Karl Foerster Grass

If you want your Karl Foerster grass to be at its best, you should plant it in early spring or late fall. The ideal time to plant Karl Foerster grass is between March 15 and April 15 in the northern hemisphere, or between September 15 and October 15 in the southern hemisphere. If you live in a climate with mild winters, you can plant Karl Foerster grass any time from November through February.

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How Far Apart to Plant Karl Foerster Grass?


How Wide Does Karl Foerster Grass Get?

Karl Foerster grass, also known as Calamagrostis x acutiflora ‘Karl Foerster’, is a hybrid of two other species of ornamental grass. It was bred in Germany in the 1940s and named after its creator, German horticulturist Karl Förster. This clump-forming grass typically grows to about 3 feet (1 meter) tall and 2 feet (60 cm) wide, with thin, upright leaves that are green in summer and turn golden brown in fall.

The flowers appear in early summer, starting out pinkish-white and gradually turning to a deep straw color. Karl Foerster grass is hardy in USDA plant hardiness zones 4-8.

How Do You Plant Karl Foerster Grasses?

Karl Foerster grasses are ornamental grasses that are native to Europe. They are named after their discoverer, Karl Foerster, who found them growing in the wild in Germany in the early 1900s. These grasses are popular for their feathery plumes, which appear in late summer and last into winter.

Karl Foerster grasses are easy to grow and care for, making them a good choice for both beginner and experienced gardeners alike. When planting Karl Foerster grasses, it is best to do so in the spring or fall. Choose a location that receives full sun and has well-drained soil.

Dig a hole that is twice as wide as the root ball of the plant. Place the plant in the hole and backfill with soil, tamping it down gently as you go. Water thoroughly after planting.

Karl Foerster grasses can be left alone to grow naturally, or they can be trimmed back periodically to keep them looking tidy. If you choose to trim your plants, do so in early spring before new growth begins. Use sharp shears or gardening scissors to make clean cuts just above where new growth is emerging from the ground.

How Far Apart Should I Plant Ornamental Grasses?

Ornamental grasses are a versatile and easy-to-care-for addition to any landscape. When planted correctly, they can provide year-round interest and beauty. One of the most common questions about ornamental grasses is “How far apart should I plant them?”

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The answer to this question depends on the type of ornamental grass you are planting. Some grasses, such as pampas grass, need to be spaced further apart (about 4 feet) because they will grow quite large. Others, such as blue fescue, can be planted closer together (about 18 inches).

When in doubt, it’s always best to consult with your local nursery or garden center. They will be able to tell you how far apart to plant the specific type of ornamental grass you are interested in.

Does Karl Foerster Spread?

Karl Foerster is a feather reed grass that is widely used as an ornamental grass. It is known for its tall, upright growth habit and its ability to tolerate both full sun and partial shade. Karl Foerster is also one of the few grasses that remain green throughout the winter months.

While Karl Foerster does produce seed heads, they are not very noticeable and the plant does not spread via seed production. However, if left unchecked, Karl Foerster can spread via its underground rhizomes (root system). If you do not want Karl Foerster to spread beyond its current location, it is important to keep an eye on its growth habit and trim back any stray shoots that appear.


Karl Foerster grass is a versatile and low-maintenance ornamental grass that is perfect for adding texture and interest to your landscape. It grows best in full sun to partial shade and prefers well-drained soil. Karl Foerster grass can be planted as soon as the danger of frost has passed in spring, or in fall when the weather is cool.

When planting, space the crowns (where the leaves emerge from the base of the plant) 18-24 inches apart. Once established, Karl Foerster grass will tolerate drought and clay soils. It is also resistant to deer and rabbits.