Growing Pepper and Chilli in Ghana: Nursery to Market

Why pepper flowers fall before the fruit sets

A pepper plant that flowers well in March and then drops half its buds in May is almost always telling you something about water, heat or nutrients. It is rarely the seed. Growers in the Eastern and Ashanti regions often blame the variety first, then find the real cause was a dry week followed by a deluge, or a hot spell when the plants had no shade.

Pepper is a fussy fruiter. The flower needs a steady supply of water and a reasonable temperature to turn into a pod, and the pollen has to stay viable. When the soil swings from bone dry to waterlogged, or the day temperature stays well above 35 °C for several days, the plant sheds flowers and young fruit rather than carry them. The plant is protecting itself, not failing you.

Our business is hatching day-old chicks at Opeikuma, near Kasoa, and we do not grow or sell pepper. We write about it because many people who buy chicks from us also run a few vegetable beds, and the hard lessons from those beds are worth passing on. Before you change anything, walk your bed with a notebook. Count the flowers on ten plants, count how many have set, and write down the weather for the ten days before. Thrips and mites are the next suspects, because their feeding scars and distorts the buds. The sections below take each cause in turn, starting with the zone and the season that suit the crop.

Which zone and which season: forest, coast and north

Pepper in Ghana is grown in three quite different settings, and the calendar changes with each. Forest and transition-zone growers mostly plant on the major rains and pick through the middle of the year. On the coast, the hot dry spells are long and humid, and the minor rains give the better window. In the north, the crop is mostly a dry-season crop under irrigation, because the rains are short and water has to come from a dam, a borehole or a river.

The table below gives a typical calendar. Treat it as a starting point and check it against what your neighbours and your district extension officer see on the ground, because a late or early rain can move every date by weeks.

Whichever zone you farm, pick a field with good drainage and at least half a day of sun. Pepper sits badly in water. A patch that floods after an hour of rain will lose plants to root rot long before the fruit is ready.

Scotch bonnet, shito or the mild large type: choosing the type

In a Ghanaian market you meet three broad groups. The first is the Scotch bonnet type, which is a Capsicum chinense and carries serious heat. The second is the small hot pepper most Ghanaians call shito pepper, the one that goes into the black pepper sauce and into many stews. The third is the large, mild pepper that traders often call tatashie, used for stews and salads. Each group behaves differently in the field, so decide on the type before you order seed.

Scotch bonnet is slower to start, needs more heat and rewards a long season. Shito types tend to be more compact and crop earlier, and they suit a market for dried pepper. Mild large types need more water and are more prone to fruit rot when the rains are heavy. Ask your seed dealer or extension officer which lines have been trialled locally, and whether the seed is open-pollinated or a hybrid. Hybrid seed usually costs more but gives more uniform fruit, which matters if your buyer grades by size.

Keep one type per field. A mixed block makes picking and selling harder, and it stops you knowing which pods are which when a buyer asks for a particular heat level.

Raising seedlings in trays for six to eight weeks

Pepper seed is slow. At a steady 25 to 30 °C it can take 10 to 14 days to come up, and the seedlings grow slowly after that. This is why most growers raise transplants in a nursery rather than sowing into the field. A tray of 84 cells or a seedbed under a shade net gives you control over water, pests and the timing of transplanting.

Fill the trays with a light mix of topsoil, well-rotted compost and sand or rice husk, and wet it before sowing. Sow one seed per cell about half a centimetre deep, cover it lightly, and keep the tray out of heavy rain. Water with a fine rose and never let the surface cap over. Damping off, which kills seedlings at soil level, comes from wet, crowded conditions. Thin to one plant per cell, and move the tray to a sunnier spot once the first true leaves open.

• Use clean trays and fresh or sterilised mix every season.
• Sow in the morning, then water lightly so the seed does not wash to one corner.
• Stand trays on benches or stones, off the wet ground.
• Harden the seedlings for about a week before planting out by cutting back on water and shade.

Transplant when the seedlings are 15 to 20 centimetres tall, have six to eight leaves and look sturdy rather than stretched. Seedlings kept too long in the tray become root-bound and sulk in the field for weeks, and the lost time is hard to make up at the end of the season.

Transplanting, spacing and the air that keeps disease down

Transplant in the late afternoon or on a cloudy day. Water the trays before lifting, set each seedling at the same depth it had in the tray, firm the soil round the root ball and water in. Expect a week of slow growth, then a quick flush of new leaves once the roots have found their feet.

Spacing decides how much air moves through the canopy. A spacing of 60 cm between rows and 40 cm within the row puts about 41,000 plants on a hectare, and it suits most Scotch bonnet and shito types. Mild large pepper is often planted wider, at 60 by 50 cm, which gives around 33,000 plants on a hectare. Closer planting gives more fruit per square metre early on, but it traps humidity, and humidity is what brings anthracnose and leaf spot.

Plant on raised beds or ridges where the ground drains. Mulch the bed with dry grass or rice husk to keep the soil moisture even and to stop rain splashing soil onto the lower leaves and fruit. Mulch also keeps the fruit clean, which matters when you sell to a buyer who rejects muddy or spotted pepper.

Feeding the plant: manure, compost and a soil test first

Pepper responds well to organic matter. Before transplanting, mix well-rotted compost or poultry manure into the top 15 to 20 centimetres of the bed, and do it two to three weeks ahead so the nitrogen has settled. Fresh manure scorches roots and brings weed seed and disease with it, so use only manure that has been composted until it no longer smells sharply of ammonia and has stopped heating.

This is where the poultry side and the vegetable side meet. Litter from a well-managed deep-litter house, once composted, is one of the best sources of nutrients a pepper grower can get locally. Our guide on using poultry manure as fertiliser in Ghana covers how much to apply and how to handle it, and the composting guide walks through building the heap. If you keep birds for their litter, keep them out of the pepper beds once fruit is setting, because they will peck at ripe pods.

Beyond organic matter, a soil test is the sensible first step. Ask your district MoFA office or the nearest Crops Research Institute station to test a sample for pH, phosphorus and potassium. Many Ghanaian soils are acidic, and the test will tell you whether lime is worth the cost. Pepper needs phosphorus at transplanting to root well, and potassium through fruiting to fill the pods. Many extension sheets suggest a basal compound fertiliser at transplanting and a top dressing a few weeks later, but the rate depends on the test, so take it from your extension officer's written advice rather than from a generic table.

Too much nitrogen late in the season gives you a leafy plant with few pods. If the leaves are dark green and the bush is big but barely fruiting, stop the top dressing and look at water and pests before you add more fertiliser.

Watering through the dry season and the wet-dry swing that rots fruit

The most common mistake in pepper beds is uneven watering. The bed gets soaked on Friday, dries out for four days, and gets soaked again. Pepper handles this badly. Flowers drop, the blossom end of the fruit turns dark and leathery (blossom-end rot), and the plant gets stressed enough for thrips and mites to take over.

Aim for even moisture. In the rains, water only when the top few centimetres are dry and check for standing water after storms. In the dry season or the north, plan irrigation before you plant. Drip lines or a basin filled by bucket each morning both work on small plots, and a hand-watered bed should get the same volume on the same days of the week. Mulch helps a great deal, because it cuts the swings in soil temperature and moisture.

Drainage matters as much as supply. A bed that holds water at root depth for more than a day invites Phytophthora, which kills plants from the base up. If your plot floods, raise the ridge or move the crop. Our article on flooding and waterlogging on poultry farms makes the same point about raised ground, and it applies to vegetable beds just as well.

Thrips, aphids and mites: the sap feeders you meet first

In pepper, the damage that matters early is usually done by insects so small you need a hand lens to see them. Thrips rasp the surface of young leaves and buds, and the damage shows as silvery streaks and distorted flowers. Heavy thrips pressure is one of the main reasons flowers fall. Look inside the closed buds and in the folds of young leaves, and tap a shoot over a white sheet of paper to see the tiny insects drop.

Aphids cluster on growing tips and the undersides of leaves. They do less harm by feeding than they do as carriers of virus. A plant infected by a pepper virus shows mottling, puckering and a stunted look, and it does not recover. Yellow sticky traps set just above the canopy are a cheap way to see aphid and thrips numbers climb, and they tell you when to start checking more closely.

Broad mites are the third group to watch. They are too small to see, but they cause new leaves to curl, harden and bronze, and the top of the plant stops growing. Mites favour dry, dusty weather, which is why they often appear in the north in the middle of the dry season.

• Scout at least once a week, looking at the undersides of the top three leaves on ten plants spread across the bed.
• Remove badly curled shoots and bin them, rather than leaving them in the field to hold mites.
• Keep the bed and its edges clear of weeds, because many weeds host thrips and aphids next door.
• Choose a product only from the PPRSD list of registered pesticides for pepper, and read the label before you buy.

Treat chemicals as the last step, and follow the label exactly, including the re-entry interval and the waiting period before harvest. The Plant Protection and Regulatory Services Directorate of MoFA is the body to check registrations with. Have your extension officer confirm the pest before you buy anything, since the wrong product wastes money and can leave residues a buyer will refuse.

Anthracnose, damping off and the wilt that follows the rain

Disease in pepper follows the weather more than the calendar. Damping off hits the nursery, where too much water and too little air kill seedlings at soil level. Keep the surface dry, use clean mix and thin the trays, and the problem mostly goes away.

In the field, anthracnose is the disease to fear in a wet season. It shows as small, sunken, dark spots on ripening fruit that widen within days, and rain splash carries it from fruit to fruit. Fruit that looks fine at picking can go soft in the market. Keep the canopy open with proper spacing, avoid overhead watering in the rains, and pick ripe fruit promptly so it does not sit and rot on the plant. Infected seed carries the disease, so buy clean seed or ask for a seed lot that has been treated by a recognised supplier.

Leaf spots caused by bacteria and fungi appear when the leaves stay wet for long periods. Remove the worst leaves, space the plants properly, and avoid working in a bed when the leaves are wet, because you spread spores on your hands and tools.

Bacterial wilt is the one to take seriously. A plant wilts suddenly in the heat even with the soil wet. Cut the stem near the base and press the cut ends together, then pull them apart slowly, and a sticky strand may stretch between them. There is no cure. Pull the plant out with its root, bag it, and do not plant any member of the nightshade family (pepper, tomato, garden egg, potato) on that spot for several years. Our tomato growing guide covers the same wilt in more depth. The garden eggs guide covers the same wilt in a close relative.

Viral diseases arrive with aphids and whiteflies and cannot be cured on the plant. Pull out early infected plants, keep weeds down, and do not save seed from a plant that showed virus symptoms.

Picking for the market: colour, firmness and drying

Pick pepper when the fruit reaches the colour your buyer wants. Scotch bonnet is picked red, yellow or orange depending on the line you grew, and green fruit sells less well in most markets. Shito types are often left fully red and dried. Pick every seven to ten days, and pick in the morning after the dew is off so the fruit does not sweat in the sack.

Cut or twist fruit cleanly rather than tearing it off with the stem. Lay it in shallow crates or cloth-lined baskets, never in deep heaps, because crushed fruit spoils in a day in the heat and a deep pile heats itself. Keep harvested pepper in the shade and get it to market the same day if you can. Firm fresh pepper keeps for a week or two in a cool, shady store. Beyond that, dry it or process it.

Drying extends the sale window. Spread the pods on mesh or racks in full sun, turn them each day, and bring them in at night or when the humidity rises. Pods are dry when they rattle and snap rather than bend. Store dried pepper in airtight containers in a dry room, and check for mould or insects every few weeks. A solar dryer or a covered rack in a breezy room is a real upgrade on open sun drying, which can pick up dust and insects.

If you plan to sell processed pepper paste or sauce, ask the Food and Drugs Authority which registration and labelling steps apply to your product before it goes on a shelf. Changing a label after printing costs more than getting it right first time.

Working out the sums before you plant a hectare

Pepper can pay well for a grower who gets the timing right, and it can cost more than it returns for one who does not. The numbers depend on your yield, the labour you can afford, the transport to your buyers and the price in your local market on the day you sell. None of those is fixed, so rather than quote figures we cannot stand behind, the table below lists the lines to fill in with your own numbers and the people who can give you current rates.

A worked example shows the logic. Say a bed of 1,000 plants gives an average of one kilogram of fresh pepper per plant over the season. That is about one tonne. Multiply it by the price you actually get in your market, then take away every cost on the list. The answer tells you whether the bed earns its keep. Run the same sum with half the yield, because that is what a bad season does, and you will see how much room you have.

Keep records from the first planting. The transplant date, the water you used, the sprays you applied and the weight you sold are the figures that make next season's budget honest. Okra is a sensible companion crop for the same beds, and our okra guide sets out its timing. Our piece on poultry record keeping in Ghana sets out a simple notebook layout that works just as well for a pepper bed.

If pepper and birds share a holding, plan the two as one business. Plenty of poultry keepers grow a few beds of pepper, okra or garden egg beside the house so the manure goes straight to the ground. The chicks are the part we supply. Our Ross 308 and Cobb 500 day-old chicks start from GH₵20 per bird, and the full range is on the day-old chick prices page. The pepper beds, the manure and the market are your side of the deal, and our poultry business plan guide helps you set the poultry side against them.

A season checklist for pepper and chilli

Work through this list in order. Most failed seasons skip one of the early steps and pay for it at harvest.

1. Test the soil and decide on lime and fertiliser from the result, not from a guess.
2. Choose the type and the seed source, and ask whether the seed lot is free of seed-borne disease.
3. Sow the nursery on the date that fits your zone, under cover or a shade net.
4. Compost the bed two to three weeks before transplanting, and keep fresh manure away from the stems.
5. Transplant seedlings at 15 to 20 centimetres, in the evening or on a cloudy day, at 40 by 60 cm.
6. Mulch, install a drip line or a basin, and write the watering routine on paper.
7. Scout the undersides of leaves every week and log what you find.
8. Pull out and bin virus-infected or wilting plants straight away.
9. Pick at your buyer's colour every seven to ten days, and keep the fruit in shade.
10. Record yield, sale weight and costs, and write down what you would change next season.

If the birds are part of the plan, start the chicks and the manure in the same season. Our day-old chicks for Ghana page covers the breeds and how to order. Chick orders go through the order section on the homepage, and WhatsApp on +233 24 915 1503 is the quickest line to us. Email is support@halaalfarms.com. If you want to talk through a larger mixed-farm plan, the partner page is where that conversation starts.

Questions farmers ask