Courgette (Zucchini) Farming Manual

On a sunny morning in Kirinyaga, 27-year-old Mercy Wanjiru walks through her half-acre plot, lifting broad green leaves to reveal rows of tender green courgettes ready for picking.

“They don’t stress me like tomatoes,” she says with a smile. “Two months, and I already have cash in my pocket.”

Mercy isn’t alone. Across Kenya, more farmers are discovering that courgettes (also called zucchinis) are among the most rewarding short-season vegetables to grow. They mature fast, sell quickly, and fetch good prices when well-timed.

For smallholders looking for something dependable and less demanding, courgettes have quietly become the “green gold” of the kitchen garden.

Why Courgettes

Courgettes belong to the cucumber and pumpkin family, but unlike their relatives, they’re harvested young and tender. Their mild taste makes them a favorite in both local and international kitchens.

From stir-fries and stews to salads and baking, demand keeps growing — especially from restaurants, supermarkets, and health-conscious consumers.

In Nairobi’s city markets, a kilo of courgettes goes for KES 60–120, depending on the season. During dry months, prices shoot higher, making irrigation farmers smile all the way to the bank. The crop is also popular with exporters targeting the Middle East and European markets.

But beyond profit, courgettes fit perfectly into Kenya’s smallholder farming cycle — short growth period, minimal pest issues, and a quick return on investment.

Understanding the Growing Conditions

Courgettes love moderate warmth — not too hot, not too cold. The ideal temperature range is between 18°C and 28°C. They thrive in well-drained loamy or sandy loam soils, rich in organic matter.

Avoid planting them in fields prone to flooding or where water stagnates after rains; they dislike “wet feet.” The soil pH should range between 6.0 and 7.5.

Before planting, dig in two handfuls of well-rotted manure per planting hole or spread 8–10 tons per acre if you’re preparing on a large scale. It boosts soil fertility and improves texture for root development.

Land Preparation and Planting

Prepare the land by ploughing and breaking the soil to a fine tilth. Courgettes are best grown on raised beds to help drainage and ease harvesting.

You can sow seeds directly or start them in a nursery. Direct seeding is faster, place two seeds per hole, 2–3 cm deep. Once germinated, thin to one strong seedling per hole.

Recommended spacing:

• Between rows: 90 cm
• Between plants: 60 cm

For hybrid varieties like Zucchini F1, Ambassador F1, or Sakata Serena, one 100g packet costs around KES 800–1,200 from certified suppliers such as Organicfarm and Seedfarm, enough for roughly an acre.

Courgettes take 45–60 days from planting to first harvest. If you plan properly, you can plant successively and harvest every week of the year.

Watering, Weeding, and Feeding

Courgettes love consistent moisture, especially during flowering and fruit formation. Water two to three times weekly, depending on rainfall. Drip irrigation is ideal — it saves water and keeps the leaves dry, reducing disease risks.

After two weeks, top-dress with CAN or NPK (26:0:0) at about 50 kg per acre. Repeat after three weeks. For organic farmers, compost tea or animal manure slurry works beautifully.

Weeding should be done early. Once the vines spread, avoid disturbing them. A light mulch of dry grass or maize stalks helps retain moisture and keeps fruits clean.

Flowering and Pollination

Courgettes produce both male and female flowers. The female flowers have a tiny baby fruit at their base. For the crop to set fruit, bees or other insects must carry pollen from male to female flowers.

In some areas with low bee activity — like greenhouses or peri-urban gardens — manual pollination may help. Simply pluck a male flower, remove its petals, and gently rub the pollen onto the center of a female flower early in the morning. It’s delicate but effective.

Pest and Disease Watch

Though generally hardy, courgettes can be affected by a few common problems:

• Aphids: Small green insects that curl and distort leaves. Use neem oil or insecticidal soap early before they multiply.
• Whiteflies: They hide under leaves and cause yellowing. Sticky traps or biopesticides help keep them down.
• Powdery mildew: Appears as white dust on leaves, especially in humid areas. Prevent by avoiding overhead watering and improving spacing.
• Fruit rot: Happens when fruits touch wet soil. Mulching and timely harvesting solve this easily.

Regular field scouting — at least twice a week — helps you catch issues early.

Harvesting and Post-Harvest Handling

Harvest begins 6–8 weeks after planting. Fruits are ready when 15–20 cm long, firm, and tender. If left too long, they become oversized and lose market appeal.

Use a sharp knife or twist gently to avoid damaging the plant. Harvest every 2–3 days to encourage new fruiting.

Yield per acre ranges between 8–10 tons, depending on management and rainfall.

After picking, wash gently and pack in plastic crates or ventilated boxes. Keep them shaded and cool — heat causes wilting and softening.

Market Avenues and Profit Margins

In Kenya, courgettes sell easily. The main buyers include:

• Open-air markets like Gikomba, Kongowea, and Muthurwa.
• Restaurants and hotels seeking consistent supply.
• Supermarkets demanding graded, clean produce.
• Export agents, especially for baby courgettes.

For small-scale farmers, off-season production using irrigation pays best. For instance, in January–February, prices can go up to KES 100 per kg when many rain-fed farms are idle.

With input costs of about KES 35,000–45,000 per acre, you can earn KES 70,000–100,000 net profit under good management — sometimes more when you sell directly to institutions.

Common Mistakes to Avoid

• Overwatering — causes fruit rot and disease.
• Late harvesting — lowers fruit quality and market value.
• Ignoring soil health — courgettes deplete nutrients fast; rotate with legumes after every cycle.
• Poor record-keeping — you can’t improve what you don’t track. Always record seed costs, fertilizer use, yields, and selling prices.

Courgettes may not have the fame of tomatoes or the boldness of cabbages, but they hold quiet power; a crop that fits neatly into Kenya’s smallholder story.

Quick to grow, easy to manage, and consistently profitable, they offer what every farmer dreams of: fast cash flow with minimal drama.

As Mercy says, “I don’t wait for months to harvest. Courgettes pay my bills between the big crops.”

For any farmer ready to turn that empty plot into a steady income stream, courgettes might just be the crop that grows your confidence, and your wallet.