Japanese yellow loosestrife (Lysimachia japonica)

Japanese yellow loosestrife

Also known as: Miniature moneywort

The wildflower Lysimachia japonica is often found in grasslands and roadsides in Japan. During the summer, yellow, star-like flowers may bloom in a pattern with five on each side. The blooms look like eggplants that were turned upwards.

Scientific classification

Species

Japanese yellow loosestrife (Lysimachia japonica)

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7 cm to 30 cm

Plant Height

25 cm to 50 cm

Spread

Green, Blue

Leaf Color

5 mm to 9 mm

Flower Size

Yellow

Flower Color

Semi-evergreen

Leaf type

5 - 32 ℃

Ideal Temperature

Images of Japanese yellow loosestrife

Distribution of Japanese yellow loosestrife

Distribution Map

Japanese yellow loosestrife is native to East Asia, where it is commonly found across various temperate zones. Over time, this plant species has expanded its territory beyond its native region and has been introduced to parts of the Near East. This growth in range is likely due to its adaptive qualities and human activities facilitating its spread to new habitats.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Margins of rainforest, Stream banks, Swamps

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Japanese yellow loosestrife

Every week

Water

Full sun

Sunlight

5 - 32 ℃

Ideal Temperature

Water: Japanese yellow loosestrife prefers balanced moisture and moderate humidity, thriving with weekly watering to reflect natural conditions. It grows best outdoors during the rainy season, as it is neither drought-tolerant nor suited for excessive humidity.

Fertilize: Japanese yellow loosestrife' benefits from a balanced or phosphorus-rich fertilizer, applied every 4-6 weeks during active growth in spring and summer. Reduce frequency in fall and avoid over-fertilizing. Newly potted 'japanese yellow loosestrife' should wait 4-6 months before fertilizing to prevent root burn.

Pruning: Japanese yellow loosestrife is a hardy perennial with vibrant yellow blooms. Prune in early to late spring to promote growth and trim faded flowers. Clean tools to prevent disease and consider thinning dense growth for better light. Proper pruning enhances appearance and encourages vigorous flowering.

Propagation: Japanese yellow loosestrife, from the Primulaceae family, is propagated by sowing seeds from mature plants in well-drained soil. Consistent watering without waterlogging supports germination. Careful nurturing during initial growth helps seedlings develop strong roots for transplanting into garden beds or containers.

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Images of Japanese yellow loosestrife

Distribution of Japanese yellow loosestrife

Care Guide for Japanese yellow loosestrife

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