Isatis lusitanica
Isatis lusitanicafam. Boraginaceae
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Pl. 365A — Isatis lusitanica
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IOverview
Overview
Isatis lusitanica, known as the Portuguese woad or simply Isatis, is an annual or biennial plant native to Portugal and Spain, with a range extending to Afghanistan, Algeria, Egypt, Iran, and Iraq. This hardy plant thrives in full sun and prefers moist soil that can be light (sandy), medium, or heavy (clay). Standing at about 0.6 meters tall, it is valued for its edible leaves, which can be used in culinary applications. Its distinctive feature lies in its ability to grow in diverse conditions, making it a versatile plant both in the wild and as an ornamental addition to gardens.
Quick answers
What is Isatis lusitanica?
Isatis lusitanica, known as the Portuguese woad or simply Isatis, is an annual or biennial plant native to Portugal and Spain, with a range extending to Afghanistan, Algeria, Egypt, Iran, and Iraq. This hardy plant thrives in full sun and prefers moist soil that can be light (sandy), medium, or heavy (clay).
What is Isatis lusitanica used for?
Traditionally used for topical & skin, immune support. Each claim is evidence-rated — see Section II for full citations.
Best for
Top 2 evidence-ranked uses of Isatis lusitanica
Clinicaluses · safety · chemistry · dosagemedicinal profile
IIBenefits & evidence
2 claims · 0 sources
Benefits & evidence
2 claims · 0 sources- Isatis lusitanica is traditionally used in topical applications for skin health. A poultice or ointment made from the leaves may help soothe minor skin irritations.
The mechanism involves compounds such as flavonoids and anthocyanins which have anti-inflammatory properties, potentially aiding in skin healing processes.
- Isatis lusitanica, like other Isatis species, has been traditionally used in Chinese medicine for immune support. A decoction of the leaves may help maintain a healthy immune response.
The mechanism is not fully characterised but involves compounds such as indican and glucobrassicin which have shown potential immunomodulatory effects.
IV·bMixology suggestions
1 draft
Mixology suggestions
1 draftEditorial drafts. These pairings are AI-suggested from traditional herbal lore. Always verify with a qualified herbalist before brewing.
Isatis lusitanica support blend
generaltea
AI returned a direct ingredient list; normalized into one draft blend for editorial review.
Growingconditions · propagation · uses
VCultivation
Cultivation
Isatis lusitanica thrives in full sun and prefers moist soil that can be light (sandy), medium, or heavy (clay). This plant is hardy in temperate regions and grows to about 0.6 meters tall. It's an annual or biennial that produces edible leaves. For successful cultivation, ensure the soil remains consistently moist while providing ample sunlight.
Light
Full sun
Water
Moist
Soil
Light (sandy), Medium, Heavy (clay)
Life cycle
Annual, Biennial
Mature size
0.6 m tall
For first-time growers
How to grow Isatis lusitanica for the first time
8steps
Start with Skip as a simple annual plant, focusing on basic care and harvesting.
- 1
What you'll need
Seeds or seedlings, a trowel, water can, potting soil.
- 2
Best time to plant
Plant Skip in spring after the last frost.
- 3
Soil and container prep
Use well-draining soil with a mix of light, medium, or heavy texture.
- 4
Sowing or transplanting
Direct sow seeds 0.5 inches deep; thin to 12-18 inches apart. Alternatively, start seedlings indoors and transplant after danger of frost passes.
- 5
First two weeks
Water regularly to keep the soil moist but not waterlogged. Ensure plenty of sunlight.
- 6
Ongoing care
Continue regular watering, especially during dry periods. Monitor for pests like aphids and caterpillars.
- 7
Harvest or pruning
Prune regularly to encourage leaf production and prevent the plant from going to seed.
- 8
Common mistakes
Overwatering, planting in heavy clay soil without drainage, neglecting regular pruning, not providing enough sunlight.
VIEdible & utility
Edible & utility
Edible parts:Leaves
Edible uses: The leaves of Isatis lusitanica are edible and can be eaten raw or cooked. They are often used in salads for their slightly bitter taste or added to soups and stews for flavoring.
Contextrange · companions · related
VIIDistribution
17 native · 0 introduced
Distribution
17 native · 0 introducedDistribution across3 continents· 17 native
Europe2 regions
native (2)PortugalSpain
Asia7 regions
native (7)AfghanistanIranIraqPalestineSaudi ArabiaTurkeyTurkmenistan
Africa4 regions
native (4)AlgeriaEgyptLibyaTunisia
Broader regions
native:East Aegean Is., Kriti, Lebanon-Syria, Sinai
IXSpecimen gallery
1 image
Specimen gallery
1 imageXSee also
8 related
See also
8 relatedPlants you might compare or use together — scored by shared family (Boraginaceae), common use cases, and growing requirements.
shared use cases
Different families, similar therapeutic role — good for comparing.
XI
Explore further
Companion planting
Health goals
Compare with similar plants
XII
About this entry
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