From our farm: Mawun Valley Farm is home to 6 mature cashew trees. During harvest season (August-December), we offer hands-on experiences including our popular Cashew Apple Jam Cooking Class.

Indonesia is among the world's top 10 cashew producers, with cultivation spanning from the dry hills of Lombok to the remote islands of Nusa Tenggara and beyond. This versatile tree has become an important part of rural Indonesian agriculture — and at Mawun Valley Farm, we're proud to be part of that tradition.

The History of Cashew in Indonesia

Cashew (Anacardium occidentale) isn't native to Indonesia. The tree originated in northeastern Brazil and was introduced to Asia by Portuguese traders in the 16th century.

Colonial Introduction

The Portuguese brought cashew to their trading posts in Goa, India, where it flourished. From there, the tree spread across Southeast Asia, arriving in the Indonesian archipelago by the early 1600s.

Why It Thrived

Cashew found ideal conditions in Indonesia:

Climate match — tropical temperatures with distinct wet and dry seasons
Suitable soils — thrives even in poor, sandy, or rocky ground
Low maintenance — once established, needs minimal care
Drought tolerance — perfect for drier regions like South Lombok

Modern Expansion

Commercial cashew cultivation in Indonesia expanded significantly in the 1970s and 1980s, particularly in:

Sulawesi (still the largest producer)
Nusa Tenggara (including Lombok, Sumbawa, Flores)
East Java and Madura
Parts of Sumatra

Indonesia's Cashew Growing Regions

Sulawesi: The Production Heartland

Sulawesi produces over 60% of Indonesia's cashew harvest. The southeastern peninsula, particularly around Kendari and Kolaka, has ideal conditions:

Hot, dry climate during key growth periods
Well-draining soils
Established processing infrastructure
Strong cooperative networks among farmers

Nusa Tenggara: Including Our Home

The islands of Nusa Tenggara Barat (NTB) and Nusa Tenggara Timur (NTT) form Indonesia's second-largest cashew region.

Lombok — Where Mawun Valley Farm is located. The southern hills around Kuta and Selong have scattered cashew cultivation, often on small family plots rather than large plantations.

Sumbawa — Larger-scale production with more commercial operations.

Flores and Sumba — Growing regions with potential for expansion.

East Java and Madura

The island of Madura and parts of East Java have significant cashew cultivation, often integrated with other dry-climate crops.

Bali

Smaller scale, but notable for organic and premium positioning. Balinese cashew products often command higher prices in specialty markets.

The Indonesian Cashew Season

Annual Cycle

Cashew trees follow a predictable cycle tied to Indonesia's monsoon patterns:

Dry Season (May-October):

Trees flower and set fruit
Less rain means better pollination
Fruit develops over 2-3 months

Harvest Season (August-December):

Main harvest: September-October
Fruit falls naturally when ripe
Peak activity for farmers and processors

Wet Season (January-April):

Trees focus on vegetative growth
New leaves and branches develop
Preparation for next year's flowering

Best Time to Visit

If you want to experience cashew harvest at the farm:

September-October: Peak season, most activity
August and November: Shoulder season, still good
December: Late harvest, more limited

Our cooking class runs throughout the harvest season, but early visits guarantee the best fruit selection.

How Indonesian Farmers Grow Cashew

Traditional Smallholder Approach

Most Indonesian cashew comes from small family farms rather than large plantations. A typical setup:

0.5 to 2 hectares of cashew trees
Mixed with other crops (coconut, fruit trees, vegetables)
50-200 trees per farmer
Family labor for harvesting and processing

This approach matches what we practice at Mawun Valley Farm — cashew trees integrated into a diverse permaculture system alongside vegetables, fruit trees, and livestock.

Growing Requirements

Climate:

Ideal temperature: 20-30°C
Annual rainfall: 1,000-2,000mm
Distinct dry season (2-4 months) for proper flowering

Soil:

Well-draining essential (waterlogging kills trees)
Tolerates poor, sandy, rocky soils
pH range: 5.5-7.5 (slightly acidic to neutral)

Spacing:

Traditional: 8-10 meters between trees
Modern intensive: 6-8 meters
Allows air circulation and easier harvesting

Plantation Timeline

Year 1-2: Young tree establishment, no fruit
Year 3-4: First small harvest (1-2 kg per tree)
Year 5-10: Increasing production (10-25 kg per tree)
Year 10-25: Peak production (up to 30 kg per tree)
Year 25+: Declining yields, eventual replacement

A well-maintained tree can produce for 30-40 years.

The Indonesian Cashew Industry

Production Numbers

Indonesia produces approximately 150,000-200,000 metric tons of raw cashew nuts annually, ranking among the top 10 global producers.

However, this understates the industry's significance:

Provides income for over 500,000 farming families
Supports thousands of processing jobs
Growing export value, particularly to India and Vietnam for final processing

Processing Reality

Most Indonesian cashew is exported raw (unshelled) to India and Vietnam, where labor costs for the tedious shelling process are lower. Only a small percentage is processed domestically.

This creates an unfortunate situation: Indonesian farmers capture only a fraction of the final product value. A raw nut selling for $1/kg becomes $10+/kg once processed and packaged for retail.

The Cashew Apple Problem

As discussed in our article on cashew apple uses, the fruit (cashew apple) is almost entirely wasted in Indonesia:

No significant juice or jam industry exists
Most fruit rots in the fields
Potential value lost: millions of dollars annually

This is exactly why we're passionate about our jam-making tradition — demonstrating that the fruit has real value.

Challenges Facing Indonesian Cashew Farmers

Price Volatility

Global cashew prices fluctuate dramatically based on:

African harvests (major competitors)
Processing capacity in Vietnam and India
Currency exchange rates
International demand shifts

Farmers often receive different prices year-to-year, making financial planning difficult.

Climate Impacts

Changing rainfall patterns are affecting production:

Unseasonal rain during flowering reduces fruit set
Extended droughts stress trees
Increased pest pressure with changing temperatures

Aging Trees

Many cashew plots in Indonesia were planted 30-40 years ago. These aging trees produce less and need replacement, but replanting means 3-4 years without income from that land.

Market Access

Smallholders often lack:

Direct connections to processors
Information about fair prices
Storage facilities for better timing
Quality grading knowledge

Middlemen capture significant value that could go to farmers.

The Future of Indonesian Cashew

Opportunities

Domestic processing: Growing capacity to process cashew within Indonesia, capturing more value locally.

Premium markets: Organic and single-origin cashew products can command higher prices.

Cashew apple utilization: Untapped potential for juice, jam, vinegar, and other products.

Agrotourism: Farms like ours showing that cashew cultivation can attract visitors and educational experiences.

What's Needed

Investment in processing facilities
Farmer cooperatives for better bargaining power
Research into improved varieties
Training in quality control and organic practices
Markets for cashew apple products

Experience Cashew Farming at Mawun Valley

Mawun Valley Farm offers visitors a chance to experience cashew cultivation firsthand:

Our Cashew Trees

We have 6 mature cashew trees scattered across the property, producing during the August-December season. They're integrated into our diverse permaculture system alongside vegetables, fruit trees, and animal areas.

What You Can Experience

Farm tours — See cashew trees up close, learn about cultivation, understand the full plant (not just the nut).

Harvest participation — During season, help collect fallen fruit and learn about processing.

Cashew Apple Jam Cooking Class — Our signature experience. Pick fruit from our trees, learn traditional jam-making, take home your creation.

Tasting — Try fresh cashew apple (seasonal) and our house-made jam at Noni's Cafe.

Why It Matters

Most visitors to Indonesia eat cashew nuts without ever seeing a cashew tree or understanding where they come from. We believe connecting people with the source of their food creates appreciation, reduces waste, and supports sustainable agriculture.