How to Grow Anise
Where to Plant Anise
- Best location: Grow anise in full sun. Plant anise in a sheltered location out of the wind.
- Soil preparation: Anise grows best in well-drained soil rich in organic matter; however, anise will grow in poor soil. Anise prefers a soil pH of 6.0 to 6.7. Anise tolerates dry conditions but will not tolerate very wet soil.
Anise or aniseed leaves (Pimpinella anisum)
When to Plant Anise
- Seed starting indoors: Start anise from seed indoors in late winter about 8 weeks before transplanting seedlings outdoors. Sow seed in biodegradable pots that can be set out in the garden after the last frost in spring. Keep seeds at 70°F for optimal germination. Anise forms a tap root which does not like transplanting or moving.
- Transplanting to the garden: Because anise has a tap root it does not transplant well after the roots become established. Set seedlings in the garden in spring as soon as the soil can be worked; protect young plants with floating row covers or a plastic tunnel until after the last frost.
- Outdoor planting time: Sow anise in the garden as early as two weeks before the average last frost date in spring. Anise requires a long, frost-free growing season of about 120 days.
How to Plant Anise
- Planting depth: Sow anise seeds ¼ inch; seed germinates in about 20 days.
- Spacing: Space plants 6 to 18 inches apart. When seedlings are 6 weeks old thin plants to 18 inches apart or more.
- How much to plant: Grow 6 anise plants for fresh leaves and cooking; grow 12 plants for seeds and preserving.
Anise Companion Planting
- Companion planting: Anise is said to encourage cilantro to germinate. The strong smell of anise is said to repel aphids and fleas. Avoid planting anise with carrots and radishes. Grow creeping thyme at the foot of anise.
Watering and Feeding Anise
- Watering: Water anise when the ground starts to dry out. Do not overwater anise.
- Feeding: Side dress plants with aged compost or organic all-purpose fertilizer at midseason.
Anise Care and Maintenance
- Care: Anise stems are weak. Stake plants that become leggy; also stake plants in windy gardens.
- Mulching: Keep planting beds free of weeds. Weeds compete for soil moisture and nutrients.
Container Growing Anise
- Container growing: Anise grows easily in containers. Select a container at least 8 inches deep and wide.
- Winter growing: Anise can be grown indoors in winter. Place plants in a bright window or under fluorescent lights.
Anise Pests and Diseases
- Pests: Anise has no serious pest problems. Anise oil is said to repel insects.
- Diseases: Anise has no serious disease problems.
How to Harvest Anise
- When to harvest: Snip anise leaves for fresh use as needed. Seeds require more than 100 frost-free days to reach harvest. Harvest seeds from late summer to early autumn starting about two to three weeks after flowering when seeds have turned brown and fall easily from the head.
- How to harvest leaves: Snip leaves for fresh use. Leaves can be dried on a screen in a cool, dry, dark, airy place.
- How to harvest seeds: Cut the flower stems and seed heads and hang the stalks upside down in a warm, dry, shady place. Place a paper bag around the seed heads so seeds fall into the bag. Thresh seeds when dry or pasteurize them in an oven at 100°F for 15 minutes. Complete the harvest before the first frost in fall.