Rue is a perennial plant once commonly grown in gardens for its medicinal properties and natural repellent effect against many insects and animals, including cats and Japanese beetles. Its finely cut, blue-green foliage and small yellow summer flowers give it a rustic elegance. Although its medicinal use has declined over time due to its potential toxicity , it remains a popular companion plant , particularly for keeping certain pests away from the vegetable garden.
Spread : 30 to 60 cm
Plant height : 60 to 90 cm
Quantity per pack : 100 seeds
Companion plants : onion, rose, lavender, strawberry, raspberry
Enemy plants : basil, sage, cabbage, cucumber, mint
In the past, rue was planted on the outskirts of villages to keep away stray cats and dogs , due to its strong odor and potentially irritating sap . Its foliage, although decorative, contains phototoxic substances that can cause skin reactions when in contact with the skin, particularly in the sun.
Contact with rue sap can cause irritation , itching , and in some cases, blisters similar to burns . Wear gloves and wash your hands thoroughly after handling. It is best to avoid planting this herb in areas accessible to young children and pets.
Seed stratification is necessary for 2-4 weeks . Sow directly into the ground in spring when soil temperatures are above 15C , or start indoors 6-7 weeks before transplanting . Seeds need light to germinate and may take up to 4 weeks to emerge. Plant in well-drained soil and full sun for best growth.
Harvest rue stems when they are fully developed, usually in summer . For use in herbal medicine or as a repellent , hang the stems in a dark, dry place until they become brittle , then store in an airtight jar .
With its unique appearance , its natural repellent role and its fascinating history , Rue is a plant that is as useful as it is ornamental in the garden!
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