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Yorkshire Fog
Also known as: Tufted grass, Sweet velvet grass
Yorkshire Fog (*Holcus lanatus*) is a perennial grass that grows in dense stands and sometimes inhibits the growth of other naturally occurring grasses. Yorkshire Fog is a prolific seed producer. Its seeds are dispersed by wind and lawnmowers, allowing new growth in different locations. Yorkshire Fog tolerates cold temperatures, but it is intolerant to frost.
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Weeds
Weed or not
Perennial
Lifespan
Grass
Plant Type
Summer, Fall
Bloom Time
2 cm to 3 cm
Flower Size
Green, Purple, Pink
Fruit Color
White, Yellow, Pink, Purple
Flower Color
White, Pink
Stem Color
Winter dormancy
Dormancy
Deciduous
Leaf type
0 - 38 ℃
Ideal Temperature

Images of Yorkshire Fog

Distribution of Yorkshire Fog

Distribution Map
Yorkshire Fog is a plant with a broad geographic presence, native to regions across Europe and the Mediterranean. It has been introduced to multiple continents, such as North and South America, Asia, and Africa. In certain areas, yorkshire Fog is sometimes thought to be a cause of concern, as its presence may have an impact on ecosystems, particularly in parts of Scandinavia, South America, and New Zealand. Despite these concerns, its actual effect on ecosystems varies by region.
Native
Cultivated
Invasive
Introduced
No species reported
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Habitat
Fen-meadow communities
Hemisphere Trend Curve

Toxicity

Though yorkshire Fog is not usually harmful to humans, some may have an airborne allergy to its pollen. Symptoms include sneezing, itchy and watery eyes, and shortness of breath. Yorkshire Fog allergies occur in spring and summer and are common in those already allergic to grass due to its prevalence in lawns and fields.
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Weed Control

Yorkshire Fog grows as a weed in most of North America (the US, Canada, and Mexico). The states of Delaware, Maryland, New Hampshire, New Jersey, Pennsylvania, and Virginia have declared yorkshire Fog a noxious weed, and it is considered invasive in North America, Hawaii, Australia, East Asia, and South America. It competes aggressively for water and soil nutrients, shades out the seedlings of native plants and contaminates crop seeds. What's more, it is considered poisonous to mammals. Hand pulling and mowing can reduce infestations. Herbicides are more effective with young plants or when flower heads are about to emerge.
How to Control It
The best time to control or remove yorkshire Fog (Yorkshire Fog) is in the spring or early summer, before it produces seed heads and begins to spread.
  1. Hand pulling: You need to make sure the soil is wet to soften it. This method requires removing the weed, grasping the yorkshire Fog at the base of the plant, and pulling straight upwards. Try not to leave any root in the ground as it may regrow.
  2. Mowing: Cut the grass at a high setting before the yorkshire Fog has gone to seed. This will prevent the weed from producing new seeds and spreading further.
  3. Smothering: Lay a thick layer of mulch, leaves, or compost over the area where yorkshire Fog is growing. This will block sunlight and kill the weed over time.
  4. Using a weed fork or daisy grubber: Stick the tool into the ground around the root of the weed, and lever it out. Be careful to get as much of the root as possible, to deter regrowth.
  5. Plant competitive species: Consider overseeding the area with fast-growing, competitive grass species that can crowd out yorkshire Fog and impoverish its growth by reducing the resources available to it.
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Care Guide for Yorkshire Fog

Every week
Water
Full sun
Sunlight
0 - 38 ℃
Ideal Temperature
Water: Originating from temperate regions, yorkshire Fog prefers consistently moist soil and exhibits moderate drought tolerance. Weekly watering is beneficial for maintaining hydration, ensuring optimal growth and resilience when aligned with its native rainfall patterns. Typically grown outdoors, yorkshire Fog thrives due to its hardiness.
Propagation: Yorkshire Fog propagates best in Spring and Autumn via Division. It's moderately easy to propagate, with success shown through new growth. Proper soil and spacing are crucial during division for optimal results.
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