Costmary

Costmary Care

Tanacetum Balsamita

What is the plant

Costmary is a perennial herb sometimes called mint geranium. But costmary is neither mint nor a geranium though its leaves have a spearmint flavor. Costmary makes an attractive, fragrant hedge in the herb garden or perennial border. Its leaves can be used fresh or dried to flavor green and fruit salads and make tea

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Lighting

Full Sun

Hardiness zone

5a - 9a

Difficulty

Easy

How to Care for the Plant

Water
Grow costmary in soil that is kept evenly moist.
Pruning
Costmary can look leggy if not clipped back. : For more foliage, discourage flowering. When plant flowers, cut costmary back to 3 or 4 inches above the soil; it will fill back out in a few weeks. Divide plants every 3 years.
Fertilizer
Plant costmary in loamy, humus-rich soil. No additional fertilizer is needed. Add aged compost to the planting bed ahead of planting.

Disease diagnosis

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Sunlight
Grow costmary in full sun to partial shade; avoid full shade. Costmary will not flower without sun.
Soil
Plant costmary in humus-rich, well-drained soil; costmary prefers a soil pH of 6.0 to 6.7.
Container
Costmary can be grown in a pot 12 inches wide and deep.