I noted last week how common names might be confusing. The asparagus fern is a nice example.
These plants are not ferns, despite their common name. Asparagus ferns blossom and produce seed-bearing fruit, something ferns never do. They can also withstand harder growing conditions than real ferns, which prefer shade and moisture.
However, part of the common name is correct. Asparagus ferns are linked to asparagus that can be eaten (Asparagus officinalis). While asparagus ferns don’t produce anything edible, they are adaptable, dependable, and simple to grow, making them helpful in a variety of gardening circumstances.
Asparagus densiflorus ‘Sprengeri’ is the most commonly produced asparagus fern. This asparagus fern forms a mound of gleaming, bright green, finely textured foliage that grows 18 to 24 inches tall and broad.
The new growth resembles small spears of delicious asparagus in appearance. The delicate, lacy leaves of the young growth reminds people of ferns when it opens and grows. As a result, the popular name makes sense.
Asparagus ferns do not have genuine leaves, despite the fact that I use the term “foliage.” Cladodes are modified, flattened stems that resemble little needle-like leaves.
Tiny white flowers appear among the foliage when the plants are old enough. The resulting fruits are roughly the size of a pea, and they start out green before turning a lovely crimson color.
Asparagus ferns may be grown from seed pretty easily. Remove and sow the huge, tan seed from the ripe, red fruit right away.
Simply push the seeds into the surface of moistened potting soil in a container. It’s not uncommon to come across seedling asparagus ferns in a setting with mature, fruiting plants.
Asparagus ferns can grow in a variety of conditions, from full sun to partial shade. When cultivated in full sun, their leaves, on the other hand, tends to turn yellow. If they get some shade for portion of the day, their growth and color will be better.
Asparagus ferns can grow in almost any soil and flourish in both moist and dry environments. They thrive in the sweltering summer heat.
Temperatures in the mid- to low-twenties may cause the foliage to burn back, and gardeners north of Lake Pontchartrain have already noticed some damage. The plants will turn brown when temps reach the upper teens.
These plants, on the other hand, are still alive. Trim them now, and the plants will look great in the spring and early summer with plenty of new growth.
Can asparagus fern grow in shade?
The asparagus fern is a spreading shrub native to southern South Africa’s coastal regions. Despite its common name, it is not a real fern; instead, depending on the classification system used, it belongs to the asparagus family (Asparagaceae) or the lily family (Liliaceae, which includes plants like amaryllis, daylilies, hosta, and tulips). It belongs to the Asparagus genus, which contains the edible Asparagus officinalis as well as over 300 other species. The exact classification of this species is a little hazy, with most references to Asparagus densiflorus, but some also use the names A. aethiopicus, A. sprengeri, and Protasparagus densiflorus.
This sensitive evergreen perennial with vivid green, ferny foliage is popular as a houseplant or outdoor ornamental plant. It’s used as a groundcover or in pots outside in warm regions. Up is hardy in zones 9-11, although if sheltered, the roots can easily make it to zone 7. It is grown as a seasonal annual or container plant in more temperate locations. The asparagus fern can be found in shaded, sandy areas such as coastal dunes, open rocky areas, and woodlands in its natural habitat. It is usually found along shady roadsides and invading woodlands or rainforests where it displaces native vegetation and hinders native species from reestablishing. In some parts of the United States, including as Florida, Texas, and Hawaii, it is classified an invasive weed.
The asparagus fern has long, erect or trailing branched stems with sharp, stiff spines sparsely covering the axils. The spherical stems, which can grow up to 6 feet long and have a slight indentation running the length of them, are green to brown in color and have a shallow indentation running the length of them. Leaf-like cladodes are what appear to be leaves (short, flattened stems that look and function like leaves). From the nodes along the stem, these needle-like “leaves” appear in groups of four to eight. True leaves are scales towards the cladodes’ base that are scarcely visible. Plants feature a fibrous root structure, creeping rhizomes, and a large number of fleshy white bulbous tubers.
From spring to fall, mature plants with enough light produce little white or pinkish-white flowers in elongated clusters (racemes) along the stems. There are six tepals on each flower (3 petals and 3 sepals similar in appearance). They are little and inconspicuous, despite being fragrant, and plants planted in temperate areas rarely bloom. Plants have two sexes. Female flowers are followed by little round berries up to 1/4 inch in diameter if pollinated. The green fruits turn a glossy crimson color as they mature and contain one to three black seeds each. Many birds are drawn to the fruits, and in mild climes, they are responsible for unintentional seed dissemination. When swallowed, the berries can cause rashes and gastrointestinal discomfort, and they are hazardous to cats and dogs.
Plant asparagus fern in full sun or moderate shade; full sun plants are more compact and dense than shade plants. It thrives in moist, organic-rich soils, although it tolerates a wide range of climates and is drought tolerant once established.
The vivid green, arching stems, and airy foliage of asparagus fern make it a popular decorative. Its fine foliage has a soft or fluffy appearance and can be utilized effectively for textural contrast when combined with plants with medium or coarse-textured foliage or very large leaves. In cold climates, it can be planted in the ground alongside other annuals as a bedding plant after the final frost. In containers, this plant works well as a filler plant, especially in hanging baskets or huge urns where the delicate foliage can cascade down. When mixed with elephant ears, canna lilies, and hibiscus, it provides a tropical feel. The leaf can also be used as a filler in bouquets with cut flowers.
The asparagus fern is an excellent houseplant for inexperienced gardeners because it requires little maintenance. It thrives in direct or brilliant indirect light (the brighter the light, the faster it grows), and it can withstand periods of neglect because to its tuberous roots that store water. It thrives in a continuous moisture environment, yet in the winter, the plants should be kept drier and fertilizing should be avoided. If the soil is too dry or there isn’t enough light, the leaf will yellow and drop. To maintain the plant shaped, cut out any old or yellowed stems at the base and clip back the ends of stems.
Trim out old growth in the spring and begin fertilizing monthly for lush new growth. Because these plants can quickly outgrow their containers, they will need to be repotted on a regular basis. Because the roots are so powerful that they might break pots, larger, thicker containers may be preferable. Early in the spring, before new growth begins, is the optimal time to repot. Indoor plants can be transplanted outdoors seasonally (returning before frost), but they must be acclimated to the brighter light outside before being moved to a full-sun location. Aphids, mealybugs, spider mites, and whiteflies occasionally infest this plant, which can be found indoors or out.
Seed and division are two ways to propagate asparagus fern. At room temperature, seeds germinate after 3-4 weeks. To speed germination, scarify the seeds and immerse them in water for a day before planting. Plants can be broken down into smaller parts, or tubers can be used to grow new plants. The optimal time to divide is in the spring, but these hardy plants can be propagated at practically any time of year.
‘Sprengeri’ and ‘Meyeri’ are the two most prevalent kinds. The latter, also known as foxtail asparagus fern, has more erect stems with thicker foliage that radiates outwards from the center of the plant, mimicking a fluffy animal’s tail. This variety works well as an erect focal point in the garden or in a container with lesser plants. In warm regions, it does not generate as much seed as the species, so it does not have the same invasive potential. ‘Cwebe’ boasts copper-colored new growth and beautiful, upright, arching stems. It thrives under bright light. More compact variants include ‘Sprengeri Nanus’ and ‘Sprengeri Compacta.’
How much light do asparagus ferns need?
Light. Although it can acclimatize to more light, the asparagus fern prefers dappled shade. Keep it away from direct sunlight.
How often do you water an asparagus fern?
Garden plants should be watered once or twice a week to keep the soil from drying up completely. According to the University of Florida, asparagus ferns are generally drought tolerant, although they will develop at a slower rate if there isn’t enough moisture.
What kills asparagus fern?
Apply a glyphosate-based systemic pesticide, such as Roundup, on the asparagus fern. For vast fern populations, this strategy is perfect. Herbicide should be sprayed on all of the asparagus fern’s fronds. Spray during a dry period for the best results.
How do you make asparagus fern bushy?
When compared to other plants that get elongated, a leggy asparagus fern can appear unusual. You can have a lovely bushier plant and then, seemingly out of nowhere, a long stem arises. In a matter of days, this stem can grow to be 50cm or 1 meter long, and you’re left wondering why your asparagus fern looks like that. You can keep your plant if you like the way it looks, but if you don’t, let’s look at why this is occurring and what you can do to stop it.
Why Is My Asparagus Fern Leggy?
A lack of light is the primary cause of a leggy asparagus fern. Because these plants are frequently labeled as low-light houseplants, many people make the mistake of placing them in a dark corner where they receive very little light. It’s because they’re trying to grow towards the light that your asparagus fern is becoming lanky and lengthy stalks are sprouting outwards. If you observe this, the best thing you can do is relocate your plant to a brighter location. However, avoid placing your plant in direct sunlight during the day, since this might cause it to burn, especially if you reside in a hot, sunny climate.
If you don’t have access to a brighter location, your plant may benefit from grow lights such as these from Amazon. If you don’t have space near a window or live in a gloomy area, grow lights can act in a similar way as the sun, providing your plant with the light it need.
Will The Seasons Affect My Plant’s Growth?
You could notice a shift in the appearance of your asparagus fern as the seasons change. Over the summer, a plant that appears bushy and healthy may begin to show signs of damage during the winter. Your asparagus fern could very easily maintain growing during the winter if your home is warm, your plant is consistently hydrated, and the soil is rich in nutrients. The light could be the sole difference. Where your plant was accustomed to enjoying a full day of sunlight, it may suddenly only receive a few hours of very weak light. In other words, a plant that is good in the summer may turn lanky in the winter. If this is the case, don’t be afraid to change the location of your plant depending on the season. Changing the weather from day to day shouldn’t make a difference, but changing the seasons can.
Trimming A Leggy Asparagus Fern
You can easily clip the elongated stems away if you don’t like the look of a lanky asparagus fern. Make a cut with a sharp pair of clean scissors where you want the stem to end. You can do this with all of the elongated stems as long as they don’t make up more than half of the plant, then move your asparagus fern to a brighter position where it will grow bushier rather than leggier.
So now you know why your asparagus fern is leggy and how to fix it. However, keep in mind that it’s your plant, so if you prefer the lanky look and it’s still healthy and putting forth new growth, feel free to leave it alone and let it grow as it pleases.
Can an asparagus fern live outside?
Grow asparagus fern in a medium to bright place indoors. In the South, it’s preferable to keep asparagus away of direct sunlight. Water asparagus fern on a regular basis; if it doesn’t get enough water, the leaves will turn brown and crispy.
Asparagus fern thrives in the shade or partial shade outdoors. It can tolerate full light as long as it is kept hydrated. It’s critical to water asparagus fern on a regular basis, especially if you’re growing it in a hanging basket.
Can you overwater asparagus ferns?
The yellowing of asparagus fern fronds can also be caused by overwatering or underwatering. Overwatering can cause root damage, which will manifest as in the leaves. If the problem is indeed underwatering, the leaves will appear dry and crispy, and the soil will be completely dry.
Why is my asparagus fern yellowing?
The most common cause of yellow leaves on your fern is overwatering. Because the asparagus fern is thirstier than many other plants, it’s easy to overcompensate and feed it more than it requires if you don’t keep an eye on the soil. After 25 percent of the soil volume has dried, you should water. If the soil is consistently damp, it might cause root rot, which causes your roots to become black and mushy.
If you suspect overwatering, take the entire root ball out and examine the roots; white roots are healthy, whereas black or brown mushy roots are not. If you find rot, use a pair of sharp clean shears to cut away the damaged roots and repot your plant. You must also ensure that your pot has a drainage hole and that all excess water is allowed to drain every time you water it.
The asparagus fern thrives in a moist climate! Yellow leaves can also be caused by a lack of moisture in the air. Daily misting is beneficial to this plant, and a pebble tray or humidifier can assist keep it green and healthy.
The presence of yellow leaves can indicate either too much or too little light. Bright indirect sunlight is ideal for your fern’s growth. Avoid using too much or too little light. A window with an east-facing orientation is good.
If you’ve ruled out everything else, another option is that the soil is nutrient-depleted. Give your fern a monthly dosage of all-purpose plant food diluted to half strength in the spring and summer.
What kind of sun does asparagus need?
Asparagus is a perennial crop that can yield spears year after year for up to 15 years or longer if properly cared for. Because it will be in the same spot for a long time, it’s critical to choose a planting site that is both convenient and has good growing characteristics. To accommodate future gardening operations, the perimeter of a garden may be preferred to the middle.
Asparagus
Asparagus is grown for its succulent, immature shoots, which will eventually mature into the bushy leaves known as ferns if left to grow. Young spears sprout in southern New Hampshire about the first week of May, or when the soil temperature hits around 40 degrees F. The ferns continue to grow until frost kills them in late fall or early winter.
Growth Characteristics
Top (ferns), crown (buds), and roots make up the asparagus plant. All three are necessary for a healthy plant. The “factory” is the fern, which creates food stored in the crown and roots below ground through the process of photosynthesis. The amount of food generated and stored in the crown during the preceding summer and fall determines the number of vigorous spears in the spring. To assure a good crop of spears the next spring, a good crop of ferns is required.
At the end of the season, wait until the old ferns are totally dead before cutting them back. Nutrients travel from the withering ferns to the crown in the fall. Removing the ferns too soon weakens the crown, reducing the size and quantity of spears in the following spring.
Growing Conditions
Full sun is perfect for this location. Asparagus need at least 8 hours of sunlight per day to thrive. Because asparagus is a long-lived perennial, avoid planting it in areas where trees or tall bushes may shade it or compete for nutrients and water.
Soil – The crown and root system can develop to tremendous proportions, with a diameter of 5 to 6 feet and a depth of 10 to 15 feet. As a result, choose a soil that is loose, deep, well-drained, and fertile whenever possible. Before planting asparagus, amend the soil with manure, compost, and/or green manure cover crops if the soil is poor.
Using the amount of limestone or wood ashes recommended by a soil test, raise the pH of the soil to 6.5 to 6.8. The same soil test is used to determine fertilizer requirements. The equivalent of 2.5 pounds of 10-10-10 fertilizer per 100 square feet is a standard suggestion. Before planting, all lime and fertilizer components should be well mixed into the soil to a depth of 10 to 12 inches.
Do asparagus ferns like to be misted?
It’s a warning that the plant isn’t getting enough water if it’s turning brown or drooping. Asparagus ferns prefer a humid atmosphere, so misting the plant or using a pebble tray can help it stay green and healthy. Temperatures of 6080 °F are ideal for the asparagus fern.