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Catnip

Nepeta cataria · Lamiaceae

The gardener's calendar

The right move for September

Ideal time to plant catnip: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.

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ID card

Foliage
Deciduous
Flowering
June to September
Adult size
60 to 100 cm tall
Growth
Fast
Hardiness
Very hardy (down to -20°C)
Origin
Central Asia and Middle East
Soil type
Well-drained, light
Exposure
Full sun to partial shade

Care

Exposure

Install your catnip in full sun for optimal growth and abundant flowering. Partial shade exposure remains acceptable, but may reduce plant density. Avoid overly shaded areas that weaken vegetation.

Soil and drainage

This plant tolerates many soil types, but prefers well-drained, light substrate, even poor soil. Chalky or neutral soil suits it perfectly. Avoid compacted soils and areas with water stagnation.

Watering

Water regularly during establishment (first few months). Once established, catnip is very tolerant of drought thanks to its developed root system. Let the soil dry out slightly between waterings during active growth periods.

Pruning and cutting

Cut the plant back to 15-20 cm from the ground in spring to promote compact, bushy growth. You can also lightly cut back after flowering to stimulate a new flush of blooms. Remove spent flowers to extend the flowering period.

Fertilization

Catnip requires only moderate fertilizer. A well-decomposed compost in spring is generally sufficient. Avoid excess nitrogen, which would promote foliage at the expense of flowering.

Prevention and pests

This plant is generally very robust. Watch for excessive moisture conditions that can promote root rot. Aphids may occasionally infest it, but proper aeration and watering at the base limit these risks.

Did you know?

Catnip fascinates felines thanks to a volatile compound called nepetalactone, which causes an inoffensive euphoric reaction in them. Humans have cultivated it since antiquity, not only to attract cats, but also as a soothing tea and in traditional phytotherapy for its relaxing and digestive properties.

Where to buy it

Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.

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Tips generated and checked by Viridia — adapt them to your local climate.