Elymus elymoides — a medium houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Elymus elymoides

Elymus Elymoides

Updated · 19 observations
ON THIS PLANT

Elymus elymoides is a species of wild rye known by the common name squirreltail. This grass is native to most of North America west of the Mississippi River and occurs in a number of ecosystems, from the alpine zone to desert sage scrub to valley grassland.

A note from PlantMom

Squirreltail displays strong disease resistance and is generally not prone to illnesses. However, it can be vulnerable to pests and diseases present in its environment. These problems are usually minor. For care, the plant requires moderate maintenance. It should be pruned regularly to keep a neat appearance and support healthy growth. Fertilizing can also encourage flowering. Squirreltail is well suited for anyone with outdoor space, such as a garden or patio, and does not demand extensive care experience. It may need more attention when grown indoors.

— PlantMom
CARE GUIDE

How to keep Elymus Elymoides.

Light

Squirreltail is a sun-preferring perennial herbaceous plant native to open habitats and often thrives in meadows and grasslands. It favors full sun but can also tolerate partial sun.

Water

Squirreltail is a plant that thrives in dry regions and is highly drought-tolerant. For optimal health, it needs to be watered once a week. This plant is best suited for outdoor growth, as it is resilient and performs particularly well in arid climates where conserving soil moisture is crucial for survival.

Temperature

Squirreltail naturally grows where temperatures range from 32 to 95 °F (0 to 35 ℃). It performs best in conditions resembling its native climates. Adjust care practices for both hot and cold seasons as needed.

Fertilizer

A single spring application of fertilizer is generally sufficient for Squirreltail, though multiple feedings can maximize growth. Apply fertilizer once every month to every month and a half. Fertilizing improves the leaves' appearance and function, helping maintain consistent color and a healthy texture. It also encourages root growth and nutrient uptake, supporting the plant's long-term health.

Pruning

Squirreltail has distinctive seeds that look like squirrel tails. To keep the plant healthy and attractive, it's best to prune it in early spring. This will help remove any damaged stems, encourage new growth, and improve air circulation. Be sure to use clean tools to prevent the spread of disease. Regular trimming not only maintains its appearance but also keeps it from becoming overgrown, making it an excellent choice for gardeners.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb
Life Cycle
Perennial
Genus
Elymus
Family
Poaceae
Hardiness Zone
3-10
Mature Height
49 cm
Mature Spread
15 cm to 30 cm
Leaf Color
Green
Leaf Type
Semi-evergreen
Flower Color
Yellow, Purple, Brown
Flower Size
15.24 cm
Bloom Time
Late spring, Early summer
Planting Time
Spring, Summer
Harvest Time
Mid summer, Late summer
ALSO KNOWN AS

Other names.

en Bottlebrush squirreltail en Squirreltail en Western Bottle-Brush Grass en Long-bristled wildrye en Squirreltail grass en Western bottlebrush grass
FREQUENTLY ASKED

Reader questions.

How should I water my Squirreltail plant in the best way?

To properly water the Squirreltail plant, it is recommended to use filtered water at room temperature. This is because tap water may contain harmful particles for the plant's health. It is important to avoid using cold water as it can be a shock to the plant, as it comes from a warm environment. Instead of overhead watering, it is best to apply the filtered room temperature water directly to the soil until it is completely soaked. This helps to moisten the roots and support their spread through the soil for proper nutrient absorption.

What kind of sunlight does Squirreltail require?

Squirreltail is a plant that requires full sun every day, as it relies on at least six hours of sunlight to maintain healthy leaves, roots, and blooms. While most perennials also need six hours of sunlight per day, certain species like the Orange Daylily or Giant Coreopsis can survive on as little as three hours of sun each day. However, it's important to note that although these perennial flowering plants can survive with only three hours of direct sunlight, they will not thrive as well as they would under sunnier conditions.

What temperature is best for Squirreltail?

The temperature requirements for Squirreltail depend on the time of year. There are two main seasons to consider: the growing season and the dormancy season. During the growing season, which starts when Squirreltail begins to sprout, the ideal temperature range is between 65-80℉ (18-27℃). If the temperature drops below 15℉ (-10℃), the plant may suffer, with its leaves browning and wilting. However, if it's a short cold snap, Squirreltail may survive with some assistance. On the other hand, during the warmer parts of the year, Squirreltail needs protection from excessively high temperatures. The upper limit for this plant's temperature range is 95-105℉ (35-40℃). Anything above that can damage the leaves and blooms, causing wilting, drooping, and even sunburn. Recovery from such damage can be challenging for Squirreltail. Fortunately, there are several quick and easy ways to address this issue.

What should I do if I give my Squirreltail plant too much water or not enough water?

Overwatering is a more common problem for the health of your Squirreltail compared to underwatering. When the Squirreltail receives too much water, its stems and leaves may wilt and turn yellow. Overwatering for a long time can also lead to diseases like root rot, mold, and mildew, which can be fatal for your plant. On the other hand, underwatering is less common for the Squirreltail, as it tolerates drought fairly well. However, it is still possible, and if it happens, the leaves may become brittle and brown. It's important to notice the signs of overwatering early when taking care of your Squirreltail. Some diseases caused by overwatering, like root rot, may not be fixable if you wait too long. If you see early signs of overwatering, reduce your watering schedule immediately and consider checking the soil's quality. If the soil doesn't drain well, replace it with a loose, well-draining potting mix. On the other hand, if you notice signs that your Squirreltail is not getting enough water, increase your watering frequency until the signs improve.

Can the sun harm Squirreltail? What can be done to keep Squirreltail safe from the sun and heat?

In warm climates, some Perennial Flowering Plants may struggle with excessive heat and suffer from sun damage. They can wilt, dry out, or even experience growth problems if they are consistently exposed to the intense afternoon sun. However, not all plants require protection from the light afternoon sun. For those that are harmed by intense afternoon exposure, it is recommended to provide them with some shade in warmer climates. Gardeners can achieve this by planting these plants in areas that do not receive direct heat during the afternoon, such as under trees or behind bushes.

The temperature needed for a baby Squirreltail plant in its first year.

If your Squirreltail plant is in its first year, you'll need to give it some extra attention during the colder months. Frost can be particularly damaging to a new Squirreltail and may prevent it from regrowing in the spring. To prevent this, keep the plant at a temperature above 40℉(5℃). You can achieve this by either bringing the plant indoors for a month or two or by using mulch or fabric barriers to protect it from frost. During the first year or two, it's also a good idea to plant the Squirreltail in a shadier spot. Smaller and weaker plants have a harder time regulating their own temperature in the heat. Limit the plant's direct sunlight exposure to no more than five hours per day, especially if the temperature goes above 80℉(27℃). To control the summer heat, use shadecloth and make sure to water or mist the plant frequently.

How frequently should I water my Squirreltail plant?

If you have a potted plant, the most accurate way to determine if your Squirreltail needs watering is to check the soil with your finger. If the top two to three inches of soil feel dry, it's time to water the plant. For those who grow their Squirreltail outdoors in the ground, you can use the same method to test the soil. Once the top few inches of soil have dried out, it's time to water. In the spring and early fall, you will likely need to water the plant about once a week using this method. When there is extremely hot weather, you may need to water twice or more per week. It's worth noting that mature, well-established Squirreltail plants have a remarkable ability to tolerate drought.

Should I make sure that Squirreltail doesn't get too much sun?

Certain perennial plants require ample sunlight to reach their maximum bloom. However, in warmer climates, some of these plants actually benefit from less sun. For instance, individuals residing in hotter regions might find it beneficial to shade their flowering perennials during the intense afternoon sun, especially during summer months. Although many perennial flowering plants prefer partial shade in the hottest climates, there are exceptions. Take the Giant Coreopsis, for example, as it is not bothered by excessive sun exposure. These plants can flourish even when placed in the full sun during scorching weather.

How do I keep Squirreltail safe from very hot or very cold weather?

If cold temperatures (below 15℉(-10℃)) happen during the growing season, you can take a few measures to protect Squirreltail from frost or cold damage. - If you're growing Squirreltail in a container, simply bring the container inside in bright, indirect light until the temperatures rise above the lower threshold again. - If you have Squirreltail planted in the ground, use mulch or horticultural fabric to create a barrier around the plant, which will protect it from frost and cold wind. For temperatures hotter than 80℉(27℃) in the shade during the day, be cautious about the amount of sunlight Squirreltail is exposed to. - Limit exposure to six hours or less of sunlight per day, preferably in the morning. - Use shade cloth or a fine plastic mesh to reduce direct sunlight during the hottest parts of the day. - Install a misting system that releases cooling mist around the base of the plant to lower ground temperatures.

How much water does my Squirreltail plant need?

When watering your Squirreltail plant, don't hold back on the amount of water you give. Make sure to water thoroughly when the top two to three inches of soil are dry. The goal is to completely saturate the soil, causing excess water to drain out of the pot's drainage holes. If you don't see any excess water draining, you may not have watered enough, but be careful not to let water accumulate in the soil, as this can harm the plant. On the other hand, if water doesn't drain at all, it's a sign of poorly draining soil, which is not good for the plant's health. If the plant is outdoors, getting 1 inch of rain per week is enough.

If Squirreltail doesn't get enough sunlight, what will happen?

If your Squirreltail plants aren't getting enough sunlight, you will see signs that they are lacking what they need. Generally, they won't produce as many blooms as they would if they were exposed to full sun. Some plants may develop dry spots on their leaves, but most will still produce blooms even with inadequate sun. However, these flowers will be smaller and less full.

Squirreltail temperature advice during the winter season.

Squirreltail needs cold temperatures in the winter to stay dormant and avoid sprouting too early. Sprouting early can be deadly, especially if there is still a risk of frost. Ideally, winter temperatures should be below freezing, but temperatures up to 40℉(5℃) are okay. In warmer climates, a sudden warm spell can cause premature sprouting. If there is still a risk of frost, you can cover Squirreltail with clear plastic to protect it. Once the risk of frost has passed, the plastic can be removed. Sometimes Squirreltail will naturally sprout at the right time, but using the plastic cover increases the chances of successful sprouting.

PLATES
Elymus elymoides leaf
PLATE 01 · leaf
Elymus elymoides leaf
PLATE 02 · leaf
Elymus elymoides flower
PLATE 03 · flower
Elymus elymoides flower
PLATE 04 · flower
Elymus elymoides fruit
PLATE 05 · fruit
Elymus elymoides habit
PLATE 06 · habit
ALSO IN THE LIBRARY

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