Citrullus lanatus

Watermelon

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Vigorous vining annual producing sweet red fruit. Requires warm temperatures, full sun, and consistent moisture. Ideal for summer growth in gardens or bright indoor spaces.
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Plant Details

Common Name Watermelon
Family Cucurbitaceae
Genus Citrullus
Species Lanatus
Origin Southern Africa
Blooming Yellow flowers appear before fruit set in summer
Leaf Color Medium green, lobed foliage
Sunlight Sun
Category Kitchen garden plants
Pet Friendly check Yes
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Care & Maintenance

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Soil

Well-draining loamy soil rich in organic matter with pH 6.0-7.0

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Watering

Consistent moisture during growth and fruit set; reduce watering before harvest to prevent cracking

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Sunlight & Care

Full sun required for best fruiting, minimum 6 hours daily exposure needed indoors

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Fertilization

Balanced fertilizer at planting; switch to high potassium during flowering and fruit development

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Pruning

Remove dead leaves and yellowing vines; train vines if space permits for better air circulation

Pest Control Aphid Cucumber Beetle Spider Mite Squash Bug

These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.

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Seasonal Periods

local_florist Flowering Period 4 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
agriculture Harvesting Period 4 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 7 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
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Growing Parameters

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Temperature
64° – 100°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 75%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
10000 – 60000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
200 – 500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
25% – 80%
% volumetric
Water content in the growing medium
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Soil EC
400 – 2200
mS/cm
Electrical conductivity (nutrient concentration in soil water)
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Common Problems

Something wrong with your Citrullus lanatus? Select a symptom to diagnose and fix the issue.

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