Sainfoin
Onobrychis viciifolia
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Description
Sainfoin (Onobrychis viciifolia) is a perennial legume renowned for its nitrogen-fixing abilities, making it a cornerstone in agroecology and regenerative agriculture systems. It occupies the herbaceous layer in food forests, contributing to soil fertility and structure with its deep-root system. Historically, sainfoin has been used in Europe as a forage crop due to its high palatability and nutritional value for livestock, offering a bloat-free alternative to alfalfa. Its pink, nectar-rich flowers are highly attractive to pollinators, particularly bees, enhancing biodiversity. Sainfoin thrives in well-drained, calcareous soils and is drought-tolerant, making it ideal for dryland farming. It plays a vital role in preventing soil erosion and improving water infiltration, while also providing habitat for beneficial insects. In guilds, sainfoin pairs well with deep-rooted trees and shrubs, such as mulberries and elderberries, which benefit from its nitrogen-fixing properties.
Growing Details
Sainfoin thrives in full sun and well-drained calcareous soils. Prior to planting, prepare the soil by incorporating organic matter to enhance fertility. Mulching around the plants helps retain moisture and suppress weeds. Companion plants include deep-rooted species like mulberries and elderberries, which benefit from its nitrogen-fixing ability. Avoid overwatering to prevent root rot. Harvest sainfoin for forage before flowering for optimal nutritional content. Store dried sainfoin in a cool,
Tags
Nitrogen Fixing
Carbon Farming
Attracts Wildlife
Erosion Preventing
Hay
Bee Friendly
Meadow
Visual Appeal
Easy Propagating
High Protein
Range (Based on GBIF Data)
The map shows known occurrence points of <strong>Onobrychis viciifolia</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 and Asia
applicable geo region: Temperate regions
language used: en
Flowering:
middle
of May for 60 days
Harvest:
middle
of Jun for 40 days
Seed Start:
beginning
of April
Indoor Start:
Transplant:
Uses & Benefits
Edible Rating:
(2/5)
edible uses: Sainfoin is primarily used as forage for livestock rather than for direct human consumption. It is not commonly consumed by humans due to its fibrous nature.
Medicinal Rating:
(2/5)
medicinal uses: Traditionally, sainfoin has been used for its astringent properties and is believed to aid in digestion and reduce inflammation. However, it is not widely used in modern herbal medicine.
health concerns: Not suitable for human consumption due to its fibrous nature and potential for digestive discomfort.
other uses: Sainfoin is used as green manure and for soil improvement due to its nitrogen-fixing capabilities. It also serves as an excellent cover crop, enhancing soil structure and fertility.
Scientific Literature
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Botanical data
specie: Onobrychis viciifolia
common names: Sainfoin; Holy Hay; French Grass
family: Fabaceae
sub family: Faboideae
tribe: Hedysareae
sub tribe:
genus: Onobrychis
Growing Conditions
area needed: 0.5 m
spacing: 0.3 m
growing difficulty: Low
Deciduous / Evergreen: Evergreen
Seed Temp (Opt/Min/Max): 15ยฐC / 5ยฐC / 25ยฐC
Plant Temp (Opt/Min/Max): 15ยฐC / -10ยฐC / 30ยฐC
water demands: Low
humidity:
light demands: High
root type: Deep
frost tender: Low
hardness:
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(5/10)
first harvest: 1 years
life span: 10 years
succession: Pioneer
growth rate: Medium
max height: 0.8 m
max width: 0.5 m
soil preference:
Medium (Loam)
pH preference:
Neutral
flower type:
Hermaphrodite
growth details: Sainfoin thrives in full sun and well-drained calcareous soils. Prior to planting, prepare the soil by incorporating organic matter to enhance fertility. Mulching around the plants helps retain moisture and suppress weeds. Companion plants include deep-rooted species like mulberries and elderberries, which benefit from its nitrogen-fixing ability. Avoid overwatering to prevent root rot. Harvest sainfoin for forage before flowering for optimal nutritional content. Store dried sainfoin in a cool,
Potential Disturbances: Sainfoin is relatively resistant to ecological pressures but can occasionally face challenges from aphids. Beneficial insects such as ladybugs and lacewings can help manage aphid populations. Ensure good drainage to prevent root rot. Companion planting with marigolds may deter nematodes.
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