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Luo han guo

Siraitia grosvenorii

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Belonging to the Siraitia genus, Luo han guo has a botanical name of Siraitia grosvenorii.

Luo Han Guo, also known as Monk Fruit, or Arhat Fruit, is a perennial vine of the Curcubitaceae family. It is cultivated for it’s sweet fruit that can be used as a substitute for sugar. The plant is native to China and Thailand. It will grow in USDA Zones 10 and 11, doing best in a tropical or sub-tropical climate. However, the literature reports that it will grow from USDA Zone 8b and upwards, being hardy to 0 deg C as long as protected from frosts.1.

The plant requires ample water and prefers a rich, free draining soil. It thrives in humidity, so if growing this plant outside the tropics, regularly mist the plant to create humidity. If growing in a pot, place a saucer beneath the pot, filled with water and pebbles. This will provide added humidity without leaving the roots sitting in water. If you have the space, Lou Han Guo may be grown in a greenhouse in areas that experience cooler winters.

Luo han guo grows as a perennial and is a flowering fruit. Being a perennial plant, it tends to grow best over several years (approx 3 years and greater).

Luo han guo is known for its vinelike habit and growing to a height of approximately 5.00 metres (16.25 feet). This plant tends to bloom in late spring, followed by first harvests in early autumn.

China is believed to be where Luo han guo originates from.

Be aware that Luo han guo typically needs a fair amount of maintenance and care in order to grow successfully. Ensure that you are aware of the soil, sun, ph and water requirements for this plant and keep an eye out for pests. Pay attention to weeding, feed and pruning schedules to ensure your plant remains in peak condition.

This plant info is provided by the myfolia gardener's wiki. All details about Luo han guo have been kindly provided by our members.

How to grow Luo han guo

  • Partial Sun

  • Dappled Sun

  • High

Luo Han Guo requires a rich, well-drained but moist loam. Sandy and clay soils should be avoided. It is not drought tolerate.

This plant has a limited climatic range, growing best at altitudes of between 150 to 800 metres above sea level. In its native habitat it grows on the cooler slopes of tropical and sub-tropical mountains. It requires an annual rainfall of 1500-2000 mm, humidity of 75% or higher, and does best in a temperature range of 15-30 deg C2.

As a short-day plant Luo Han Guo requires 6-7 hours of sunlight. However, partial sun or dappled shade, mirroring the cloud forests from whence it comes, is recommended for very hot climates. An herbaceous perennial, the vine will die back in winter, and re-sprout in the spring. It is a dioceous plant, meaning that male and female flowers occur on different plants[ibid]. It is therefore necessary to grow both a male and female plant to produce fruit.

Plant in a location that enjoys partial sun / dappled sun and remember to water often. The USDA Zones typically associated with Luo han guo are Zone 8 and Zone 11. Keep in mind when planting that Luo han guo is thought of as tender, so remember to wait until your soil is warm and the night time temperature is well above freezing before moving outside.

See our list of companion Plants for Luo han guo to see which plants you should plant in close proximity to encourage growth.

Growing Luo han guo from seed

Transplanting Luo han guo

As Luo han guo is tender, ensure temperatures are mild enough to plant out (around 15°C / 59°F as a guideline) - wait until after your last frost date to be on the safe side.

How long does Luo han guo take to grow?

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Other names for Luo han guo

arhat fruit, monk's fruit, buddha fruit, luo han kuo

Momordica grosvenorii

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