Plantation Of Laxmi Taru (Sima Rouba Glauca)

LAKSHMI TARU A source of Edible oil & Medicine

LAKSHMI TARU (Simarouba glauca DC):

Common names: Simarouba, oil tree, paradise tree or aceituno) is an important tree species growing in the forests of Central America. It was first introduced by National Bureau of Plant Genetic Resources in the Research Station at Amravathi, Maharashtra in 1960s.

This was brought to the University of Agricultural Sciences, Bangalore in 1986. Dr Syamsunder Joshi & Dr Shantha Joshi did systematic Research work. Poojya Sri Sri Ravishankar Guruji named this tree as Lakshmitaru as every part of the tree is useful.


This medium sized evergreen tree begins to bear when it is 6-8 years old (3-4 years in case of grafts) and attains stability in production after another 4-5 years. The flowering is annual, beginning in December and continuing up to following February. The trees are polygamodioecious and only some females are heavy bearers.

By grafting with a suitable scion in situ the sex of the plant can be transformed as desired and the productivity can be increased. The drupelets turn black (in Kaali variety) or greenish yellow (in Gauri variety) when they are ready for harvest during April/May.

Manually harvested drupelets are depulped, washed and sun-dried (moisture about 10%) and transported at convenience for processing.

  • Seeds contain 60-75% oil that can be extracted by conventional methods.
  • Each well-grown tree yields 15 to 30 Kg nutlets equivalent to 2.5-5 Kg oil and about the same quantity of oilcake. This amounts to 1000-2000 Kg oil/ha/year (400-800 Kg/acre/ year) and about the same quantity of oilcake.
  • The oil is largely used in the preparation of bakery products in Central America. In India too it can be used in the manufacture of vanaspati, vegetable oil and/or margarine.
  • The oil is free from bad cholesterol. It can be also used for industrial purposes in the manufacture of BIOFUELS, soaps, detergents, lubricants, varnishes, cosmetics, pharmaceuticals etc.
  • The oilcake being rich in nitrogen (8%), phosphorus (1.1%) and potash (1.2%), is good organic manure.
  • The shells can be used in the manufacture of particle board, activated charcoal or as fuel.
  • The fruit pulp, rich in sugars (about 11%) can be used in the preparation of beverages.
  • The pulp along with leaf litter can be economically used in the manufacture of Vermicompost (about 8 tons/ha/year or 3 tons/acre/year).
  • The bark and leaves are medicinally important.
  • The wood is generally insect resistant and is used in the preparation of quality furniture, toys, in match industry, as pulp (in paper making) and as fuel.

The plants can be grown as orchards, boundary planting or as avenue trees.

At the onset of regular monsoon, the grafts or seedlings of known sex are planted with 5 m (E-W)X 4 m (N-S) spacing (500 plants/ha; 200 plants/acre), in pits 45 x 45 x 45 cm size half filled with the top soil. Protective watering may be done by adopting SIM-FUN technique for one or two summer seasons. Timely weeding and manure application improve the growth of saplings and advance the flowering.


This ecofriendly tree with well-developed root system and with evergreen dense canopy efficiently checks soil erosion, supports soil microbial life, and improves groundwater position.

Besides converting solar energy into biochemical energy all round the year, it checks overheating of the soil surface all through the year and particularly during summer.

Large scale planting in the wastelands facilitates wasteland reclamation, converts the accumulated atmospheric carbon dioxide into oxygen and contributes to the reduction of green house effect/global warming.


Simarouba is established in about 200 hectares in Andhra Pradesh, 100 hectares in Maharashtra, 100 hectares in Tamil Nadu and 100 hectares in Karnataka

For a long-term strategy, cultivation of Simarouba is advocated in the abundantly available marginal/wastelands to attain self-sufficiency in oils and its implementation shall be economically viable and ecologically sustainable.


Minimum Price for nutlets:

Rs. 400/quintal; (present cost) after ten years, it will be even more than 300%. Minimum yield in a well maintained plantation:

From 10th year about 30 quintals per acre per year (75 quintals per hectare per year)

Monetary returns:

About Rs. 12,000/- per acre/year (Rs. 30,000/- per hectare per year) from rainfed nonirrigated land; the income is assured, regular for a period of about 60 years. The cost of cultivation is met by selling the Vermicompost (about 3 tons/acre or 8 tons/ha).

Additional income:

By felling 5% of trees/year and selling the wood for quality timber @ Rs 1000/- per tree, an additional income of Rs 10,000/- per acre/year (Rs. 25,000/ per hectare/year) can be got. The rotation is once in ten years.


Oil Industrialists are ready to buy nutlets in large quantities.

Nursery techniques
  • Soil bed should be prepared by mixing organic matter in the soil
  • Bed size should be 1 meter in width and length can be 3 meter to 10 meter
  • Seeds should be soaked in water over night before putting in the nursery bed.
  • Put the soaked seed on the bed, inline with a distance of 6 to 9 inches and cover with thin layer of soil
  • Irrigate as and when required to the keep the optimum moisture level
  • Seed coat being hard, so it takes 3 to 4 weeks to germinate
  • Seedlings of 6 to 9 inches height should be transplanted in the poly bags filled with soil and organic mannure
Cover size:

12 X 20 cm

Filling material:

Sand: 5 parts + 3 parts manure + 2 parts soil

Nursery seedlings should not be exposed to continuous rains; excess watering causes damping off disease.

Plantation : Field transplanting:

8-12 week old seedlings are ideal for transplanting.

planting and aftercare (cultivation aspects)
  • Spacing: 5 m (East - West) X 4 m (North - South) (500 plants/ha or 200 plants/acre)
  • Pit size: 45 X 45 X 45 cm (1.5’x1.5’x1.5’)
  • Filling material: Mainly top soil.
  • Plant 3-4 seedlings in a pit. Planting may be done during monsoon.
  • While planting, SIM-FUN micro-irrigation technique may be adopted, i.e. we can fix the empty bottles near base of the plants for irrigation purpose.
  • In the first and second summers about 5 litres of water per plant/week may be given.
  • Trenches and basins prepared regularly facilitate proper rainwater harvesting.
  • Lateral bud pruning is done till the saplings grow to about three meters height so that the saplings grow tall and straight; it also facilitates easy movement in the field.
  • Timely weeding and manure application improve the growth.
  • After 5-6 years, high yielder are identified and they are retained; the low yielder are cut and the wood is marketed to earn money.
  • Regular manure application improves the yield.
  • By top working and crown grafting in situ with the scions of high yielder the low yielder can be successfully transformed into high yielder.
  • The final population is maintained 200/acre (500/ha)

Lakshmitaru planted on wasteland Crops of that area may be grown as intercrops till the canopy covers the open space. Afterwards also shade loving crops or fodder crops may be grown as intercrops to get additional income and to prevent weed growth. Pruning of unwanted and criss-cross branches helps better fruit setting.

The fruit lets are gathered, depulped, washed, dried and may be stored in gunny bags up to one year before sending for oil extraction

The oil is extracted in the existing oil mills following conventional methods

Note :

When Laksmitaru is small plant below height of 2 feet Goat or other animal can eat. So please take care of the plants in nursery itself till it grows to two feet.

So the security needs may not be required .If we are going for protection net around the plants will cost Rs. 20, that much investment will be so expensive.

It is advised that to wait for plantation till seedlings grows to two feet height.

After that it will not happen or no animal can eat the plant

Reference: “Lakshmitaru (Simarouba Glauca) by Dr. Syamsundar Joshi

Effective Medicinal properties , ailments that can be cured
  • Cancer (i and ii stage ), Leukemia
  • Ulcers and bleeding in alimentary system
  • Gastritis caused by Helicobacter pylori
  • Hyperacidity, Dyspepsia
  • Amoebiasis, Diarrhoea, Colitis
  • Chikungunya, Herpes, H1N1, Hepatitis
  • Malaria, Fever, Colds
  • Hemorrhage, Anemia, Rheumatoid arthritis
  • Gynec: painful periods, excess bleeding, white discharge, menopause disorders
Preparation of Decoction

Step 1. Take mature shade dried leaflets or sticks (about 8.0 cm long rachis) @ two leaflets or sticks for 10 kg body weight. Cut leaflets/sticks into small pieces. Put them in about 200 ml of water. Boil the mixture in low flame for about 10 minutes preferably at night. Cover the vessel with a plate and leave it overnight. Next morning warm the decoction and filter. The warm filtrate is gargled properly and sipped slowly on empty stomach. After half an hour desired food may be consumed.

Step 2. Add 200 ml of water to the left out (same) piece of leaflets/sticks and boil the mixture in low flame for 10 minutes. Cover with a plate and leave and leave for a few hours. Warm the mixture again, filter and drink the decoction slowly in the evening half an hour before supper. USE ONLY STAINLESS STEEL VESSELS.


For cancer, leukemia, ulcers Rheumatoid arthritis: One cup (about 175 ml) in the morning-in empty stomach and one cup in the evening. Treatment continued till the ailment is completely cured

For other ailments and as tonic: One cup in the morning and one cup in the evening for 15 days. The course is repeated once in six months.

Ref: Dr. Shyam Sundar Joshi

Ph: 080-23335813, 09448684021