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Big Size Black Watermelon Seeds Hybrid Vegetable Seed for Sowing
US$99.90-199.90
1 kg
Sample price:US$10.00/bag.Request sample
Product profile
Customization
AvailableShelf Life
>12 MonthsColor
GreenModel NO.
BLACK JINGStorage Method
NormalSize
MiddleKind
Fruits and VegetablesPacking
100g/BagWeight
10-12kgShape
OvalCertificate
PhytoTransport Package
Bags/CansTrademark
SHUANGXINGOrigin
ChinaProduction Capacity
500000kgKey features
High Yield & Vigorous Growth: Easily fruits with high yield, healthy growth, and resistance to diseases and continuous cropping.
Premium Taste & Quality: Vivid red flesh, 12% sugar degree, crispy, juicy, less seeds, and oval shape with black rind.
Large Fruit Size: Big size fruit with unit weight of 10-12 KG, suitable for transport and storage.
Fast Maturity: Middle mature variety requiring only 32 days to mature.
Trusted Manufacturer: Founded in 1984, exported to 30+ countries, with over 90% customer reorder rate.
Custom Packaging Options: Flexible packing available, such as 100g per bag, to meet specific customer needs.
Professional R&D Support: Supported by 10 R&D engineers and international leading production bases in Hainan and Xinjiang.
Company profile

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2011-05-01 CertifiedNearest Port: Tianjin PortAverage Response Time: ≤15h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryHebei Shuangxing Seeds Co., Ltd. is identified as a China-based manufacturer and limited company specializing in seed research, production, sales, and service. The supplier reports four production lines, a 77,000 m² manufacturing plant, 10 years of R&D engineering experience, 6–10 quality-control staff, and stated watermelon and melon seed output of 500 tons each. It exports to more than 30 countries and lists ISO 9001:2015 certification. Evidence also indicates experience with multiple seed categories and scientific research on watermelon, melon, sunflower, squash, pumpkin, and vegetable varieties. However, the provided information does not sufficiently establish after-sales procedures, customization services, or named customer cases. Financial credibility is supported by stated AA and AAA industry credit ratings, but the evidence is self-reported and no independent verification is provided.
Supplier typeThe supplier is explicitly identified as a manufacturer, factory, and limited company located in Hebei, China. Its stated operations integrate seed research, production, sales, and service, with agriculture and food as its commercial sector.
CertificationsThe supplier states that it holds an ISO 9001:2015 certificate and is recognized with AA and AAA credit ratings in the seed industry. ISO certification is explicit, although the provided slices do not include certificate scope, issuer, or validity details.
Financial creditThe supplier is recorded as a limited company and reports AA and AAA credit ratings in the seed industry. These ratings provide explicit positive evidence, but the slices do not provide independent verification or broader financial-performance information.
R&D capabilityThe supplier reports integration of scientific research with breeding and production, 10 years of total R&D engineer experience, and research popularization across watermelon, melon, sunflower, squash, pumpkin, and other vegetable seeds. This directly supports established research activity and varietal-development capability.
Production capacityThe supplier reports four production lines, a 77,000 m² manufacturing plant, 6–10 quality-control staff, and annual output of 500 tons of watermelon seeds plus 500 tons of melon seeds. It also states order fulfillment within 15 working days in both peak and off-peak seasons, providing positive evidence of operational capacity, although the scope of these figures is not further documented.
Client casesThe supplier states that it exports to more than 30 countries, including the United States, Turkey, Russia, Jordan, Egypt, India, Pakistan, and Vietnam, and reports positive customer feedback. These are market references rather than named customer case studies, so the evidence supports international customer experience but not detailed verifiable cases.
Product Q&A
Q:What is the shelf life of the seeds?
A:
The shelf life is greater than 12 months when stored in a dry and cool place.
Q:How long does it take for the watermelon to mature?
A:
It is a middle mature variety that requires 32 days to mature.
Q:What are the main characteristics of the fruit?
A:
The fruit has an oval shape, black rind, vivid red flesh, 12% sugar degree, and weighs 10-12 KG.
Q:Is the product resistant to diseases?
A:
Yes, the seeds grow healthy and vigorous with higher resistance to diseases and continuous cropping.
Q:What certifications are provided?
A:
The product comes with a Phyto certificate.
Send Inquiry
*To:
Hebei Shuangxing Seeds Co., Ltd.
Hebei Shuangxing Seeds Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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