How to Look After Courgette Plants | A Complete Growing Guide
Introduction: From Seed to Harvest Made Simple
Courgette plants (also known as zucchini) are one of the most rewarding crops to grow in the garden or on an allotment. Fast-growing and highly productive, a single plant can yield weeks’ worth of vegetables throughout the summer. But to get the best out of your courgettes, it’s important to know how to care for them properly — from planting to harvesting.
Keter Manor Outdoor Apex Double Door Garden Storage Shed (6 x 8ft)
A durable and stylish beige and brown garden storage shed perfect for storing garden tools, equipment, bikes, and outdoor essentials. Weather-resistant, low maintenance, and ideal for any garden or allotment setup.
🌱 Compost & Soil Improvers
Give your garden beds a boost before winter with compost and organic matter.
Shop Compost & Soil Improvers
🌿 Autumn Plant Feed & Fertiliser
Prepare your soil for autumn planting with suitable fertilisers and soil nutrients.
Browse Garden Fertilisers
🥬 Seed Trays & Propagation Kits
Keep growing through autumn by starting suitable hardy crops under cover.
Shop Seed Trays
Why Grow Courgettes?
- High Yields – One plant can produce dozens of courgettes
- Fast-Growing – Quick results, often ready within 6–8 weeks
- Versatile Crop – Great for stir-fries, soups, roasting, or baking
- Easy to Grow – Ideal for beginners and experienced gardeners alike
How to Look After Courgette Plants – Step-by-Step
1. Choose the Right Spot
- Courgettes love sunshine and warmth, so pick a sunny, sheltered location.
- They need space to spread — give each plant around 1 metre square of growing room.
- Courgettes can be grown in the ground, raised beds, or large containers (at least 30cm wide and deep).
2. Planting and Spacing
- Sow seeds indoors in April or directly outdoors in late May after the last frost.
- Use rich, well-draining soil with plenty of organic matter.
- Harden off indoor-grown plants before transplanting.
- Water thoroughly after planting and mulch around the base to retain moisture.
3. Watering and Feeding
- Courgettes are thirsty! Water regularly — aim for consistent moisture at the roots, especially during dry spells.
- Avoid wetting the leaves to reduce the risk of mildew.
- Feed weekly with a high-potash fertiliser (like tomato feed) once flowers appear.
4. Supporting the Plant
- Most courgettes are bushy, but some varieties are climbing or trailing and can be trained up supports.
- Use a cane or trellis for vertical varieties to save space and keep fruits clean.
5. Pollination Tips
- Courgette plants produce separate male and female flowers.
- Bees usually do the pollinating, but you can help by hand-pollinating:
- Gently transfer pollen from a male flower to the centre of a female flower using a small brush or cotton bud.
6. Pest and Disease Control
- Slugs and snails love young plants — use barriers, traps, or organic slug pellets.
- Powdery mildew can be a problem in humid conditions — water the roots, not the leaves, and keep plants well spaced.
- Remove any yellowing or mildewed leaves to improve airflow.
7. Harvesting Courgettes
- Start harvesting when courgettes are 10–15cm long — the smaller they are, the more tender they’ll be.
- Pick regularly to encourage more fruit and prevent them turning into marrows!
- Use a sharp knife or scissors to avoid damaging the plant.
Bonus Tips
- Companion plants like marigolds and nasturtiums help attract pollinators and deter pests.
- Mulching around the base keeps roots cool and conserves moisture.
- Pinch out growing tips if plants get too leafy and unproductive.
Common Problems and Fixes
| Problem | Cause | Solution |
|---|---|---|
| Leaves turning yellow | Overwatering or nutrient lack | Improve drainage, feed regularly |
| No fruits forming | Poor pollination | Hand-pollinate or attract pollinators |
| Powdery mildew | Humidity and leaf wetness | Water at base, remove affected leaves |
| Small fruit rotting | Blossom end rot or poor pollination | Feed with calcium-rich fertiliser, pick regularly |
Conclusion
Courgette plants are generous, fast-growing, and low maintenance with the right care. By providing plenty of sun, regular water, and rich soil, you’ll be rewarded with a bumper crop that keeps producing for weeks. Whether you’re growing in a bed or a pot, learning how to properly look after your courgettes will give you fresh, tasty veg all summer long.