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Cal Sweet Watermelon Seeds

Guarantee To Grow
Suitable for all Regions
Cal Sweet Watermelons
SKU: WM26-20
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Country Of Origin: USA USA
Availability: Out of stock
$3.00
Your price: $2.50
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Non Treated Seeds
Non-GMO Variety
Red Watermelon

90 days. Citrullus lanatus. Open Pollinated. Cal Sweet Watermelon. The plant produces good yields of 25 lb watermelons. It has distinctive light and dark green stripes with bright red flesh. This variety is one of the best tasting watermelons on the market. Also known as Calsweet Watermelon. Suitable for home garden and market growers. United States Department of Agriculture, PI 635727.  A variety from the USA. Disease Resistant: FW.

 

Lot No: 103220

Germination: 85%

Test Date: 11/2025

 

Seeds Per Pound: 4,000

 

Plant Height: Vine Type Plant

 

Planting Season: Spring

 

Sunlight Requirement: Full Sun

 

Planting Method: Indoor Sow/Direct Sow

Watermelon Citrullus lanatus

 
Seed DepthSoil Temp. for GerminationDays to GerminationSunlight RequirementsPlanting Time
1 - 3"75 F to 85 F7 to 14 daysFull Sun Spring
USDA Hardiness ZoneSeed SpacingRow SpacingSpace After ThinningDays to Harvest
N/A Hills 8 ft Apart 8 ft Hills 8 ft Apart70 - 110 days
Watermelon Planting Information:

Watermelons require a lot of space and a sunny location in your garden. Plant 5 to 7 seeds in a diameter outdoors in hills. Planting should occur 1 to 2 weeks after the last frost. Plants grow 1 ft tall, and vines spread up to 6 ft.

Soil Requirements:

Requires fertile soil in a well-drained location in the garden. Apply mulch, grass clippings, or straw around the base of the plant. Add well-rotted manure and compost to the soil.

Water Requirements:

Water well during dry and hot spells. Make sure plants get 1" of water per week.

Fertilizer Requirements:

Use Slow Release (6 Month) Fertilizer when transplanting outdoors. Apply Miracle-Gro Liquid Fertilizer every two weeks.

Harvest Tips:

Protect ripening watermelons from damp ground by placing them on boards. Tap the watermelon with your knuckles, and if it sounds hollow, it's ready. Cut watermelons carefully from the plants to prevent damaging the vines.

FW – Fusarium Wilt

Scientific Name: Fusarium oxysporum

Type: Fungus

Fusarium Wilt is a fungal disease that affects the growth of cantaloupes & melons, cauliflower, eggplants, peas, peppers, squash, tomatoes, and watermelons. It is one of the most devastating of all soil-borne diseases. It attacks the roots of the plants and moves up the stems. Symptoms include stunting and wilting. Plants don’t always die, but it slows growth and reduces yields. Infected seedlings will damping off, wilt, and die. If you stick with fusarium wilt resistant tomato varieties you don’t have to worry. Many of the older heirlooms don’t have any resistance to the disease, so if you grow these then you should keep an eye out for it. The infected plants should be removed to avoid further infestation. Plan on using a 3 year crop rotation and avoid planting in the same location, year after year, as the disease can survive in the soil for 7 years. The best option is to use disease resistant varieties.

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