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Artemisia annua
sweet annie
Artemisia annua
Artemisia annua, also known as sweet wormwood, is an annual plant with fern-like leaves and a distinctive aromatic scent. It's known for its medicinal properties, particularly artemisinin, used in anti-malarial drugs. It typically grows to a height of 1-2 meters. The plant prefers well-drained soil and full sun.
CategoryDetails
Medicinal UsageMedicinal Usage
Duration to maturity4 months to harvest
Estimated Plant Lifespan6 months lifespan
Sun Requirements6+ hours direct sunlight (Full Sun)
Pollination

Method: wind

Watering Requirements

Method: Top water

Frequency: When the top inch of soil is dry

Notes: Avoid overwatering; Artemisia annua prefers well-drained soil.

Humidity Requirements

Level: Moderate

Care InstructionsPrune regularly to encourage bushier growth and remove any yellowing or dead leaves.
Temperature Range

Min: 10°C

Max: 30°C

Alternative NamesAnnual Mugwort, Sweet Wormwood
Allium sativum
Garlic
Allium sativum
Garlic has natural antifungal and insect-repellent properties, protecting Artemisia annua from pests and diseases.
Convolvulus arvensis
field bindweed
Convolvulus arvensis

Field bindweed is a highly competitive weed that can quickly overtake and smother Artemisia annua due to its aggressive growth habit.

Chenopodium album
Common Lambsquarters
Chenopodium album

Lamb's quarters are fast-growing and compete for resources like nutrients, water, and sunlight, potentially stunting the growth of Artemisia annua.

Aphids

Aphids are small, sap-sucking insects that can weaken the plant. Symptoms include distorted leaves, stunted growth, and a sticky substance called honeydew.

Spider mites

Spider mites are tiny pests that cause yellowing or stippling of the leaves. They thrive in hot, dry conditions and can quickly damage Artemisia annua.

Steps:

    • Start seeds indoors 6-8 weeks before the last expected frost or direct sow after the last frost.
    • Sow seeds on the surface of the soil and lightly press them in. They need light to germinate.
    • Keep the soil consistently moist until germination occurs (usually within 1-2 weeks).
    • Transplant seedlings outdoors after the danger of frost has passed, spacing them 12-18 inches apart.

Neem Oil

Effective against aphids and spider mites.

Bacillus thuringiensis (Bt)

Controls caterpillars and other leaf-eating pests.

Compost Tea

Improves soil health and provides nutrients for strong growth.