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Marsh Cudweed
Marsh Cudweed
Marsh Cudweed
Marsh Cudweed
Marsh Cudweed
Marsh Cudweed
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Marsh Cudweed
Gnaphalium uliginosum
Also known as: Low Cudweed, Mud Cudweed, Cudweed
Marsh Cudweed (Gnaphalium uliginosum) is a diminutive annual wildflower. It was originally native to Europe but found its way to North America, becoming invasive and considered a noxious weed. It can overtake native foliage in small marshes, bogs, and wetlands. Marsh Cudweed has been added to the diets of some dairy cows to improve their digestion.
Hardiness Zones
1
Hardiness Zones
plant_info

More Info

Plant Type
Plant Type
Herb
Flower Color
Flower Color
White
Yellow
Bloom Time
Bloom Time
Summer
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distribution

Distribution Map

Habitat

Damp places in sandy fields, heaths, waysides
distribution map
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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question

Questions About Marsh Cudweed

Sunlight Sunlight Sunlight
Temperature Temperature Temperature
How much sunlight should Marsh Cudweed get per day to grow healthily?
You must expose the plants to at least 6 to 8 hours of sunlight daily. They prefer more exposure to the morning light, especially in the summer. The Marsh Cudweed needs full sun and more sunlight that it can get. The more light these species get, the more they can manufacture food, produce beautiful blooms, and survive.
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What type of sunlight does Marsh Cudweed need?
The Marsh Cudweed grows best under full sunlight. It's best not to crowd them together so they can get exposure to the sun evenly. The leaves shouldn't be starved with sunlight. If planted in pots, try to expose the herbaceous flowers in windows with direct sun and ensure they receive full sunlight regardless of the months.
They don't tend to do well in partial or filtered light as this will not produce strong stems and healthy flowers. It's best if the Marsh Cudweed is always exposed to the sun.
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Can sunlight hurt plants? How to protect Marsh Cudweed from sun and heat damage?
When the temperature rises above 90℉(32℃), the Marsh Cudweed can get damaged by extreme temperatures, especially if they are exposed to many hours of sun. It's always ideal for providing some shade from the light in the afternoon in the summer. It's always important to keep in mind that the sunlight in the summer is stronger than the one in the winter. Sunlight exposure is also 50% longer in the summer than in the winter.
If the Marsh Cudweed is too stressed with sunlight, you might want to keep them fully hydrated. Water them when the top of the soil is about 2 inches dry, and move the plants indoors if it's too hot outside. This is the case if they are planted in containers.
It can be normal for the plant leaves to wilt during the day. Generally, they can recover at night. However, when you notice that the Marsh Cudweed is still drooping, this means that the plant is losing water fast, and you need to water them.
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Should I protect Marsh Cudweed from sun exposure?
The Marsh Cudweed does not need any protection from the sun. In fact, they love the sun, and some species are heliotropic. Plant them in south-facing gardens whenever possible so they can be exposed from morning to afternoon. While the sun can benefit them, some may experience a sunburn. You might offer protection from the afternoon and midday sun through a shade of a tree or a wall.
Growing the Marsh Cudweed in shady areas is impossible because the larger flowers would require a lot of energy to grow and produce. Always provide the lighting conditions and set them in an area with full sun for best results.
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What will happen if Marsh Cudweed gets inadequate sunlight?
When the Marsh Cudweed does not get adequate sunlight, or they are not placed in full sun locations, it's worth noting that the photosynthetic process will slow down. A lack of sunlight will cause the stems to become more leggy since they become thin and long since they tend to seek too much sunlight. They will not bloom and produce seeds in the shade.
Inadequate sunlight will also mean that the older leaves can die, the color of the new ones is lighter than the old foliage, and the new growth is smaller than the last ones.
The Marsh Cudweed indeed loves the sun so much. However, they can wilt when exposed to excessive heat and ultraviolet light during the extreme summer months, so be careful. You might want to cover them with a net that has a green shade, especially in the summer, to prevent the leaves and the flowers from scorching. When they are indoors, reduce the heat with the help of a fan.
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Does Marsh Cudweed need special care about sunlight during its different growth stages?
When the Marsh Cudweed is growing, they need more light than their mature counterparts. The younger ones should receive adequate light, but they might not be prepared for sudden full sunlight, especially if they are grown in a nursery. They can be more sensitive to the summer sun, so the lighting should be gradual and slow.
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How much light does Marsh Cudweed need for photosynthesis?
During summer or late spring, the Marsh Cudweed needs 6 to 8 hours of direct light every single day. This is whether they are planted outdoors. If the Marsh Cudweed is planted in pots or you're growing them in the winter, they need direct fluorescent lights that help them grow better. Make sure to place them in an indoor area where they are facing south or east so they can have enough sunlight for photosynthesis.
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Are there any cautions or tips for sunlight and Marsh Cudweed?
When transplanting the plants, they should not be exposed to sudden sunlight. Give the Marsh Cudweed to grow and mature before transplanting outside. Some species of herbaceous plants can grow taller and might cast a shade on other young plants. Allow between 80 to 100 days of growing season before planting another batch to ensure that every plant receives more than enough sunlight for at least 6 hours a day.
Make sure that the Marsh Cudweed receives the best light possible, especially if it's planted in a nursery. These are sun-loving plants, but too much sunlight with a very hot temperature is also detrimental to their growth. Indoor lights should be replaced with natural sunlight as much as possible since these species crave this every day.
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Marsh Cudweed
Marsh Cudweed
Marsh Cudweed
Marsh Cudweed
Marsh Cudweed
Marsh Cudweed
Add to My Garden
Marsh Cudweed
Gnaphalium uliginosum
Also known as: Low Cudweed, Mud Cudweed, Cudweed
Marsh Cudweed (Gnaphalium uliginosum) is a diminutive annual wildflower. It was originally native to Europe but found its way to North America, becoming invasive and considered a noxious weed. It can overtake native foliage in small marshes, bogs, and wetlands. Marsh Cudweed has been added to the diets of some dairy cows to improve their digestion.
Hardiness Zones
1
Hardiness Zones
plant_info

More Info

Plant Type
Plant Type
Herb
Flower Color
Flower Color
White
Yellow
Bloom Time
Bloom Time
Summer
icon
Find your perfect green friends.
Plan your green oasis based on your criteria: plant type, pet safety, skill level, sites, and more.
Download the App
distribution

Distribution Map

Habitat

Damp places in sandy fields, heaths, waysides

Map

distribution map
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
question

Questions About Marsh Cudweed

Sunlight Sunlight Sunlight
Temperature Temperature Temperature
How much sunlight should Marsh Cudweed get per day to grow healthily?
more
What type of sunlight does Marsh Cudweed need?
more
Can sunlight hurt plants? How to protect Marsh Cudweed from sun and heat damage?
more
Should I protect Marsh Cudweed from sun exposure?
more
What will happen if Marsh Cudweed gets inadequate sunlight?
more
Show More more
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