Cuscuta pentagona — a medium houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Cuscuta pentagona

Cuscuta Pentagona

Updated · 12 observations
ON THIS PLANT

Cuscuta pentagona, the fiveangled dodder, is a parasitic plant in the morning glory family Convolvulaceae. It is native to North America, where it is widespread in the United States and Canada. Unlike the closely related C. campestris, it has not become established on other continents.Cuscuta pentagona is a slender annual vine. It is parasitic on a wide range of herbaceous plants, but with particular emphasis on members of the aster family (Asteraceae).Its typical natural habitat is in moist, open areas such as riverbanks, wet prairies, and pond edges. It is tolerant of disturbance, as can be found as a weed in fields and along roadsides.

A note from PlantMom

Fiveangled dodder has strong resistance to disease and is typically not prone to illnesses. However, it can be vulnerable to pests and diseases present in its environment. These infections are generally not serious. In terms of care, this plant requires moderate maintenance. It should be pruned regularly to maintain a good appearance and healthy growth. Fertilizing can also help encourage flowering. Fiveangled dodder is suitable for anyone with outdoor space, such as a garden or patio, and does not demand much prior care experience. It may need more attention when grown indoors.

— PlantMom
CARE GUIDE

How to keep Cuscuta Pentagona.

Light

Fiveangled dodder does best in full sun but can tolerate reduced sunlight. Moving it to match seasonal changes in light is helpful whether it’s in a pot or planted in the ground. Too little light can limit its growth and vigor.

Water

Fiveangled dodder is moderately drought-tolerant, adapting well to varying moisture conditions. For optimal health, it needs to be watered weekly. This plant thrives outdoors and has a climbing habit, extracting water from host plants. It demonstrates resilience during periods of sporadic water availability throughout the growing season.

Temperature

Fiveangled dodder is a plant that thrives at temperatures between 68 and 100 °F (20 to 38 ℃). Native to temperate regions, it prefers steady temperatures year-round. In colder areas, seasonal temperature adjustments may be necessary to ensure optimal growth.

Fertilizer

Usually, one fertilizer application in spring suffices for Fiveangled dodder, though repeated feedings can maximize growth. Fertilize every month to every month and a half. Fertilization improves leaf appearance and function, helping maintain even color and a healthy texture. It also promotes root development and nutrient uptake for the plant's long-term health.

Pruning

Fiveangled dodder is a parasitic vine that benefits from pruning between early and late spring for optimal health. Timely removal of infected sections helps control its invasive nature, improves light penetration for the host plants, and promotes healthier growth. It is important to always disinfect your tools to prevent contamination and minimize damage.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb, Vine
Life Cycle
Perennial, Annual
Genus
Cuscuta
Family
Convolvulaceae
Hardiness Zone
2-11
Mature Height
0.91 m to 1.22 m
Mature Spread
30 cm
Leaf Color
Yellow, Orange
Leaf Type
Semi-evergreen
Flower Color
White, Cream
Flower Size
2.54 cm
Bloom Time
Summer, Early fall
Planting Time
Spring, Summer
Harvest Time
Late summer, Fall
Native Area
Mexico
ALSO KNOWN AS

Other names.

en Five-angle dodder en Fiveangled dodder en Bush-clover dodder en Field dodder en Lespedeza dodder en Five-angled dodder en Pentagon dodder
FREQUENTLY ASKED

Reader questions.

How should I water my Fiveangled dodder plant to keep it healthy?

When watering the Fiveangled dodder, it is recommended to use filtered water that is at room temperature. Tap water may contain harmful particles, making filtered water a better option. It is also important to note that the water temperature should be at room temperature or slightly warmer, as cold water can be a shock to the plant. Furthermore, overhead watering should be avoided for this plant to prevent foliage complications. Instead, water the plant by applying filtered, room temperature water directly to the soil until it is thoroughly soaked. This method allows the roots to receive moisture, aiding in their growth and nutrient absorption.

What kind of sunlight does Fiveangled dodder require?

Fiveangled dodder requires full sun daily, with a minimum of six hours of sunlight to maintain the health of its leaves, roots, and blooms. While many perennials also need six hours of sunlight each day, plants like the Orange Daylily or Giant Coreopsis can survive with as little as three hours of direct sunlight. However, it's important to note that these flowering perennials won't reach their full potential without sunnier conditions.

What temperature is best for Fiveangled dodder?

The optimal temperature for Fiveangled dodder depends on the time of year. There are two main seasons to consider: the growing season and the dormancy season. During the growing season, when Fiveangled dodder is sprouting, the ideal temperature range is 65-80℉ (18-27℃). If it gets colder than 15℉ (-10℃), the plant may suffer, resulting in browning and wilting of the leaves. However, if it's just a short cold snap, the plant may survive with some assistance. In the warmer parts of the year, Fiveangled dodder needs protection from excessively high temperatures. The upper limit for this plant is 95-105℉ (35-40℃). Anything above that can damage the foliage and blooms, causing wilting, drooping, and even sunburn on the leaves. Recovery from these effects can be challenging for Fiveangled dodder. Fortunately, there are several quick and easy methods to combat this issue.

What should I do if I give my Fiveangled dodder too much or too little water?

Overwatering and underwatering can harm your Fiveangled dodder, but overwatering is more common. When this plant gets too much water, its stems and leaves may wilt and turn yellow. Overwatering for a long time can cause diseases like root rot, mold, and mildew, which can kill the plant. Underwatering is less likely because the Fiveangled dodder can tolerate drought. But when it happens, the leaves will become brittle and brown. It's important to notice signs of overwatering quickly. Some diseases, like root rot, can't be fixed if you wait too long. If you see early signs of overwatering, reduce watering immediately. Check the soil drainage, and if it's poor, replace it with a loose, well-draining mix. If you see signs of underwatering, simply water the plant more regularly until the signs go away.

Can the sun harm Fiveangled dodder? How can I keep Fiveangled dodder 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 needs for the first year or young Fiveangled dodder plants.

If this is the first year that you have planted a Fiveangled dodder outside, it will require some extra care during the colder months. Frost can cause severe damage to a young Fiveangled dodder and prevent it from regrowing in the spring. To avoid this, you need to keep the plant at a temperature of 40℉(5℃) or above until it is established. This can be achieved by either bringing the plant indoors for a month or two or using mulch or fabric barriers to protect it from frost. During the first year or two, it is advisable to plant the Fiveangled dodder in a shadier location. Smaller and weaker plants have a harder time regulating their own temperature in hot weather. It is important to limit the plant's exposure to direct sunlight to no more than five hours a day, especially if the daytime temperature exceeds 80℉(27℃). Using shadecloth and ensuring regular watering or misting is crucial for controlling heat during the summer months.

How frequently should I water my Fiveangled dodder?

If your Fiveangled dodder plant is in a pot, the best way to determine if it needs water is to stick your finger into the soil. If the top two to three inches of soil are dry, it's time to water. If you're growing your Fiveangled dodder plant outdoors in the ground, you can use a similar method to test the soil. Again, if the top few inches of soil have dried out, it's time to water. During the spring and early fall, you'll usually need to water this plant about once a week. When it gets very hot, you may need to water twice a week or more. However, mature, well-established Fiveangled dodder plants can tolerate drought well.

Should I keep Fiveangled dodder out of the sun to protect it?

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 can I keep Fiveangled dodder safe from very hot or very cold temperatures?

If the temperature drops below 15℉(-10℃) during the growing season, there are ways to protect Fiveangled dodder from frost or cold damage. If it's planted in a container, you can bring it indoors with bright, indirect light until the temperature rises again. For ground-planted Fiveangled dodder, you can use mulch or horticultural fabric to create a protective barrier against frost and cold wind. On the other hand, if the temperature goes above 80℉(27℃) in the shade during the day, you should limit the plant's exposure to sunlight to six hours or less, preferably in the morning. Installing shade cloth or a fine plastic mesh can help reduce direct sunlight during the hottest parts of the day. Another option is to set up a misting system that releases cooling mist around the plant's base to lower ground temperature.

How much water does my Fiveangled dodder plant need?

To effectively water your Fiveangled dodder, don't hold back on the amount of water you give it. Wait for the top two to three inches of soil to dry out before watering. When you do water, make sure to thoroughly soak the soil. The water should be enough to cause excess water to drain out of the pot through the holes at the bottom. If you don't see any excess water draining, it means you haven't watered enough. But be careful not to let the water accumulate in the soil as that can harm the plant. On the other hand, if water doesn't drain through the pot, it could mean that the soil doesn't have good drainage, which is bad for the plant's health. If the plant is outside, it should receive about 1 inch of rain per week, which is sufficient.

What will happen if Fiveangled dodder doesn't get enough sunlight?

If your Fiveangled dodder is not receiving sufficient sunlight, you will observe signs of insufficient requirements in your plants. They will not produce as many blooms as they would with full sun exposure. Some plants may develop dry spots on their leaves, but despite this, they will still bloom in less than ideal sunlight. However, the flowers that do bloom will be smaller and less full.

Suggested temperature for Fiveangled dodder during the inactive season.

Fiveangled dodder requires a certain amount of cold during winter to remain dormant until it is time to sprout. If it sprouts too early, before the last frost has passed, it can be fatal, especially if it has already started growing when the frost hits. Ideally, winter temperatures should be below 32℉(0℃), but temperatures up to 40℉(5℃) are acceptable. In some climates like woodland rainforests, unexpected warm weather can cause premature sprouting of Fiveangled dodder. In this case, if there is still a risk of frost, covering the plant with clear plastic on stakes can offer some protection to the new sprout. The covering can be removed once the danger of frost has passed. While Fiveangled dodder may occasionally sprout at the correct time without assistance, using this method increases the chances of a successful second sprouting.

PLATES
Cuscuta pentagona leaf
PLATE 01 · leaf
Cuscuta pentagona flower
PLATE 02 · flower
Cuscuta pentagona flower
PLATE 03 · flower
Cuscuta pentagona fruit
PLATE 04 · fruit
ALSO IN THE LIBRARY

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