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DRAGON FRUIT IN GREENHOUSES
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DRAGON FRUIT IN GREENHOUSES — EXTENDED FRUITING & BIGGER PROFITS!
Did you know that with the right greenhouse setup, dragon fruit can produce 4 to 5 flower cycles per year, even during the cold winter months in South Africa?
One of the most powerful methods commercial growers use is night lighting between 11:00 PM and 2:00 AM.
Lights run in 30-minute intervals with 10 minutes off, stimulating the plant to continue its flowering cycle — the same technique used in Asia’s top farms.
This method helps you achieve:
Winter flowering
Extended fruiting season
Higher annual yield
More export-grade fruit (higher income!)
Better plant performance in cold regions
What does the lighting cost per night?
Here’s a simple cost breakdown using a standard 10W LED bulb per pole (you can scale up or down):
Lighting period: 3 hours (11PM–2AM)
Duty cycle: 30 min ON / 10 min OFF
Actual ON time in 3 hours:
→ 30min on + 10min off = 40min cycle
→ 3 hours = 180 minutes
→ 180 / 40 = 4.5 cycles
→ 4.5 × 30min = 135 minutes ON
→ = 2.25 hours ON per night
Cost per bulb per night:
10W LED = 0.01 kW
0.01 kW × 2.25 hours = 0.0225 kWh
Average SA electricity price: R2.98 per kWh
0.0225 kWh × R2.98 = R0.07 per bulb per night
ONLY 7 cents per night per bulb!
Even with 100 poles in a greenhouse:
R0.07 × 100 = R7.00 per night
One month (30 nights):
R210 per month of lighting
For a farm generating tens of thousands of rands in winter fruit, this extra lighting is one of the highest ROI techniques in dragon fruit farming.
FINAL THOUGHT
Greenhouse-grown dragon fruit with winter lighting gives farmers a 6–9 month production window, while outdoor fields often stop in winter.
With export prices hitting R80–R120/kg, winter fruit can double your income.
If you want the most profitable setup — from greenhouse design to selecting the best self-pollinating varieties — we’re here to help.
WhatsApp: +27 83 447 4639
admin@proagrisa.co.za
Healthy Fields DFSA - Dragon Fruit SA
Dragon Fruit Association #DFSA #dragonfruit #dragonfruitfarm #dragonfruitplant #dragonfruitfarming
Id Subtitle 1343129524
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Cornelius Van Heerden
Selling for 13+ years
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