Chinese artichoke - Stachys affinis (Care, Characteristics, Flower, Images, Edible)

Chinese artichoke

Also known as: Japanese artichoke, Knotroot

Chinese artichoke is a deciduous perennial herb that is is a popular choice for borders and Cottage Gardens, due to its tall attractive summer-blooming flowers that invite pollinators. If left unmonitored, this cold-hardy plant will grow vigorously and can take over a garden with its spreading habit.

Scientific classification

Species

Chinese artichoke (Stachys affinis)

Mints plantains olives and allies

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Herb

Plant Type

Summer

Bloom Time

Winter

Harvest Time

50 cm

Plant Height

1 m

Spread

Green

Leaf Color

5 cm to 15 cm

Flower Size

Pink, Purple

Flower Color

Green, Purple, Pink

Stem Color

Deciduous

Leaf type

Images of Chinese artichoke

Distribution of Chinese artichoke

Distribution Map

Chinese artichoke is native to East Asia, thriving in a climate that spans from temperate to subtropical regions. It has been introduced and is now cultivated in parts of Europe. This expansion reflects its adaptability and successful integration outside its indigenous range, having been adopted in diverse agricultural settings.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Wet and submersed areas

Care Guide for Chinese artichoke

Every week

Water

Full sun

Sunlight

5 - 32 ℃

Ideal Temperature

Water: Chinese artichoke prefers consistently moist soil, ideally receiving weekly watering, particularly during its active growing season. Though it has moderate drought tolerance, regular moisture is essential for optimal tuber growth and a successful harvest, reflecting its origins in China's fertile valleys.

Fertilize: For optimal growth, chinese artichoke require high-phosphorus and potassium fertilizers, applied in early spring and every two weeks during the growing season. Avoid overfeeding, adjusting amounts as dormancy nears in late fall. Dilute fertilizers and apply to moist soil, avoiding direct plant contact to prevent burn.

Pruning: Chinese artichoke thrives with early to late spring pruning after the last frost. Remove dead stems and excess foliage for better air circulation and sunlight. This practice encourages vigorous growth, reduces disease risk, and improves tuber quality, ensuring optimal yield throughout the growing season.

Propagation: Chinese artichoke is a perennial tuberous herb propagated by dividing healthy tubers, ensuring each has a growth point. Plant in well-draining soil and maintain moisture without overwatering. Proper care fosters root and shoot development, enhancing yield through its natural growth habits.

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