Common Eyebright (Euphrasia nemorosa) is a small, semi-parasitic herbaceous plant native to grasslands and meadows across Europe. It features small, white to purplish flowers with a distinctive yellow spot on the lower petal, blooming from mid-summer to early autumn. In regenerative agriculture, Common Eyebright contributes to biodiversity by parasitizing grasses and other plants, which helps control dominant species and fosters a diverse plant community. This plant is often found in the herbaceous layer of food forests, where it can play a role in managing grass populations. Historically, it has been used in traditional European herbal medicine for eye health. In agroecological systems, it can be paired with grasses like fescue or ryegrass, which serve as host plants.
Growing Details
Common Eyebright requires a host plant to thrive, as it is semi-parasitic. It prefers well-drained soils and full sun. For soil preparation, ensure the area is free of weeds and has a host grass like fescue or ryegrass. Mulching is not recommended as it may hinder the establishment of host plants. Avoid overwatering to prevent fungal diseases. Harvest the aerial parts during flowering for medicinal use, and dry them in a shaded, well-ventilated area.
The map shows known occurrence points of <strong>Euphrasia nemorosa</strong> recorded in scientific biodiversity databases.
Source: <a href="https://www.gbif.org" target="_blank">GBIF.org</a> โ Global Biodiversity Information Facility
Location & Timing
native geo location: Native to Europe, commonly found in grassland
applicable geo region: Europe
language used: en
Flowering:
middle
of July for 60 days
Harvest:
middle
of September for 30 days
Seed Start:
?
Indoor Start:
Transplant:
Uses & Benefits
Edible Rating:
(0/5)
edible uses:
Medicinal Rating:
(3/5)
medicinal uses: Common Eyebright has been traditionally used in herbal medicine for its anti-inflammatory properties, particularly in treating eye-related conditions such as conjunctivitis and eye strain. It is often used in the form of infusions or eye washes. The aerial parts of the plant are typically harvested during flowering for medicinal use.
health concerns: Eyebright should be used with caution, especially in homemade preparations, as improper use can lead to irritation. It is advisable to consult with a healthcare professional before use.
other uses:
Scientific Literature
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Botanical data
specie: Euphrasia nemorosa
common names: Common Eyebright; Eyebright; Red Eyebright
family: Orobanchaceae
sub family:
tribe:
sub tribe:
genus: Euphrasia
Growing Conditions
area needed: 0.1 m
spacing: 0.1 m
growing difficulty:
Deciduous / Evergreen: Evergreen
Seed Temp (Opt/Min/Max): 15ยฐC / 10ยฐC / 20ยฐC
Plant Temp (Opt/Min/Max): 15ยฐC / 5ยฐC / 25ยฐC
water demands: Medium
humidity:
light demands: High
root type: Shallow
frost tender: Medium
hardness:โโโโโโโโโโ(4/10)
first harvest: 90 years
life span: 1 years
succession: Pioneer
growth rate: Medium
max height: 0.3 m
max width: 0.2 m
soil preference:
Medium (Loam)
pH preference:
Neutral
flower type:
Hermaphrodite
growth details: Common Eyebright requires a host plant to thrive, as it is semi-parasitic. It prefers well-drained soils and full sun. For soil preparation, ensure the area is free of weeds and has a host grass like fescue or ryegrass. Mulching is not recommended as it may hinder the establishment of host plants. Avoid overwatering to prevent fungal diseases. Harvest the aerial parts during flowering for medicinal use, and dry them in a shaded, well-ventilated area.
Potential Disturbances: Common Eyebright is generally resistant to most pests, but may occasionally suffer from fungal diseases in overly wet conditions. To manage fungal issues, ensure good air circulation and avoid overhead watering. Companion planting with garlic or chives can help deter fungal pathogens.
Growth Timeline
Recipes Using This Plant
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