Chilli Serrano

🧺 Starting from Seed: Trays vs. Direct Sowing

Sowing in Trays (Recommended)

Chillies are best started in trays or punnets, especially in cooler parts of Australia. They’re slow to germinate and love consistent warmth—conditions that are easier to control in a protected spot.

• Timing: In warm regions, you can start seed in late winter. In cooler zones, wait until early spring or use a heat mat to kickstart germination indoors.
• Method: Sow seeds 0.5cm deep into a fine seed-raising mix. Keep moist but not soggy. Ideal germination temp: 24–30°C.
• Tip: A heated propagator or sunny windowsill can shave a week or more off germination time.
• Transplanting: Once seedlings have 4–6 true leaves and the weather has warmed, harden them off gradually before planting out.

Direct Sowing (Not Ideal, but Possible)

If you’re in the far north or have a long, hot growing season, you can sow directly—but be prepared for lower germination rates and slower starts.

• Wait until soil temps stay above 20°C day and night.
• Choose a sheltered, sunny position and enrich the soil beforehand.
• Protect seedlings from slugs, snails, and early pests.

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💧 Seed Pre-treatment

Chilli seeds have a tough coat and can be slow to germinate. While not strictly necessary, soaking seeds can help:

• Soak in warm water for 6–8 hours before sowing.
• For older seed or stubborn varieties, a weak chamomile tea soak can help soften the seed coat and reduce fungal risk.

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🌞 Soil and Position

Chillies love a warm, sunny spot and rich, free-draining soil.

• Soil Prep: Work in plenty of compost and aged manure. A sprinkle of blood and bone or a balanced organic fertiliser adds extra oomph.
• pH Range: Slightly acidic to neutral (6.0–7.0).
• Spacing: 40–60cm apart depending on the variety.
• Sunlight: Minimum 6 hours direct sun—more is better!

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🛠️ Care and Maintenance

Once in the ground, chillies are fairly low fuss—but they do need consistent love to fruit heavily.

Watering

• Keep soil evenly moist but never waterlogged.
• Avoid watering the leaves—water at the base to reduce fungal issues.

Feeding

• Feed fortnightly with a seaweed tonic or compost tea.
• Once flowering starts, switch to a potassium-rich feed to support fruiting.

Mulching

• Use sugarcane mulch or straw to retain moisture, regulate temperature, and keep weeds down.

Staking

• Taller or heavily laden plants benefit from gentle staking to avoid snapped stems.

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🌿 Companion Planting Guide

Chillies enjoy the company of these garden friends:

Good Companions	Why?
Basil	Enhances flavour and repels aphids
Marigold	Deters thrips and nematodes
Spring onion & chives	Confuse pests and boost nearby growth
Nasturtium	Attracts aphids away from chillies
Carrots	Make use of lower root space

Avoid planting near beans or fennel—these can inhibit growth.

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✂️ Harvesting

• Timing: Chilli fruits are ready 8–12 weeks after transplanting, depending on variety and weather.
• Technique: Use scissors or snip by hand with care. Don’t yank—this can damage branches.
• Pick Often: Regular harvesting encourages more fruit to set.
• Ripening Tip: If cool weather hits before full ripening, pick and let them colour up indoors on a sunny windowsill.

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🐛 Common Issues and Fixes

Problem	Symptoms	Fix
Aphids	Clusters of green or black insects on tips and leaves	Spray with neem oil or insecticidal soap; encourage ladybugs
Blossom End Rot	Sunken, blackened ends on fruit	Inconsistent watering or calcium deficiency—mulch and water regularly
Powdery Mildew	White powdery coating on leaves	Improve airflow, avoid overhead watering, treat early with milk spray or bicarb solution
Leaf Curl or Yellowing	Can be viral or pest-related	Remove affected leaves, isolate plant, check for pests under leaves
Chilli Thrips	Silvery streaks, curled deformed new leaves, scarring on fruit	Remove affected tips, spray with neem oil or insecticidal soap every 3–5 days
		Encourage predatory insects like lacewings; avoid broad-spectrum pesticides
Root Knot Nematodes	Stunted growth, swollen roots	Practice crop rotation, solarise soil, add organic matter and marigolds
Sunscald	Pale, leathery patches on fruit exposed to direct sun	Use shadecloth or companion plants to protect during heatwaves

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🌱 Seed Saving Guide

Saving chilli seed is wonderfully straightforward and a great way to preserve your favourite varieties year after year.

1. Choose Open-Pollinated Varieties: Hybrids may not grow true to type.
2. Select the Best Fruit: Let a few chillies ripen fully on the plant until they wrinkle slightly.
3. Harvest Seeds:
   • Cut open and scrape seeds onto a plate.
   • Dry in a warm, well-ventilated spot out of direct sun for 5–7 days.
4. Storage:
   • Once crisp-dry, store in an envelope or airtight container in a cool, dry spot.
   • Label with variety and date—seeds remain viable for up to 3 years.
5. Isolation Tip:
   • If you’re growing multiple varieties, be aware of cross-pollination. Hand-pollinating or spacing 10m+ apart helps maintain purity.

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🌟 Final Thoughts

Chillies are a garden delight, offering colour, heat, and flavour to your kitchen. From fiery birds eyes to smoky jalapeños, there’s a chilli for every palate. Starting them from seed might test your patience early on, but once they take off, they’re prolific and rewarding. A bit of warmth, a touch of care, and a watchful eye on pests like chilli thrips will set you up for a long and spicy harvest season.

💡 Pro tip from my own patch: start your chilli seeds a few weeks earlier than tomatoes, and you’ll hit the ground running come spring. Even a handful of early fruit makes the extra effort worthwhile.

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Delivery Guarantee

We take great care to make sure your seeds arrive safely. If your order is lost or damaged in transit, we’ll happily send a replacement. Unfortunately, we can’t replace or refund orders that arrive later than the estimated delivery date, as delays can sometimes occur that are outside our control.

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