--- product_id: 290249191 title: "Watermelon Seeds - Black Diamond - 1 Oz ~400 Seeds - Citrullus lanatus - Farm & Garden Vegetable/Fruit Seed - Non-GMO, Heirloom, Open Pollinated, Annual" brand: "mountain valley seed company" price: "$23.36" currency: USD in_stock: true reviews_count: 1 category: "Mountain Valley Seed Company" url: https://www.desertcart.us/products/290249191-watermelon-seeds-black-diamond-1-oz-400-seeds-citrullus-lanatus store_origin: US region: United States of America --- # 90 days to full maturity thrives in full sun exposure 400 premium seeds per pack Watermelon Seeds - Black Diamond - 1 Oz ~400 Seeds - Citrullus lanatus - Farm & Garden Vegetable/Fruit Seed - Non-GMO, Heirloom, Open Pollinated, Annual **Brand:** mountain valley seed company **Price:** $23.36 **Availability:** ✅ In Stock ## Summary > 🍉 Grow the legend: Black Diamond watermelons that make your garden the envy of summer! ## Quick Answers - **What is this?** Watermelon Seeds - Black Diamond - 1 Oz ~400 Seeds - Citrullus lanatus - Farm & Garden Vegetable/Fruit Seed - Non-GMO, Heirloom, Open Pollinated, Annual by mountain valley seed company - **How much does it cost?** $23.36 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/290249191-watermelon-seeds-black-diamond-1-oz-400-seeds-citrullus-lanatus) ## Best For - mountain valley seed company enthusiasts ## Why This Product - Trusted mountain valley seed company brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pure & Authentic:** Non-GMO, open-pollinated seeds ensure true-to-type Black Diamond melons with rich flavor and heritage. - • **Fast-Track Growth:** Enjoy juicy, heirloom watermelons in just 90 days—perfect for the busy urban gardener. - • **Trusted Family Brand:** Sourced from Mountain Valley Seed Company, a small, family-owned business committed to premium quality and sustainability. - • **Sun-Loving Resilience:** Designed for full sun environments, these seeds thrive across all U.S. zones—maximize your garden’s potential. - • **Abundant Harvest Potential:** Approximately 400 high-germination Black Diamond watermelon seeds per ounce—grow your own summer bounty. ## Overview Black Diamond Watermelon Seeds by Mountain Valley Seed Company offer approximately 400 non-GMO, heirloom seeds per 1 oz pack. These open-pollinated seeds mature in 90 days, thriving in full sun and moderate watering, ideal for all U.S. zones. Perfect for professional gardeners seeking premium quality and authentic flavor from a trusted family-owned brand. ## Description desertcart.com : Watermelon Seeds - Black Diamond - 1 Oz ~400 Seeds - Citrullus lanatus - Farm & Garden Vegetable/Fruit Seed - Non-GMO, Heirloom, Open Pollinated, Annual : Patio, Lawn & Garden Review: Quality seed delivered as promised - Quality seed delivered as promise I would recommend them and we’ll buy again from them ## Features - Watermelon Seeds - Black Diamond - 1 Oz ~400 Seeds - Citrullus lanatus - Non-GMO - Heirloom - Open Pollinated - Premium Seeds - High Germination Rate - Farm & Garden Vegetable / Fruit Seeds - 90 Days to Full Maturity - Annual Crop - Not Intended to Over-winter - All Zones in the U.S.A - Mountain Valley Seed Company Brand - Independently Family Owned & Operated Small Seed Company - Premium Quality Seeds ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08K1KNDJS | | Best Sellers Rank | #280,354 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,918 in Fruit Plants & Seeds | | Brand Name | Mountain Valley Seed Company | | Color | Black,Green | | Customer Reviews | 4.4 4.4 out of 5 stars (8) | | Expected Blooming Period | Summer | | Expected Planting Period | Winter | | Indoor Outdoor Usage | Indoor | | Manufacturer | Mountain Valley Seed Company | | Manufacturer Part Number | 48187 | | Material Features | GMO Free, Heirloom | | Moisture Needs | Moderate Watering | | Number of Pieces | 400 | | Other Special Features of the Product | Premium | | Plant or Animal Product Type | watermelon | | Product Care Instructions | Water | | Sunlight Exposure | Full Sun | | UPC | 740006081220 | | Unit Count | 1.0 Fluid Ounces | ## Product Details - **Brand:** Mountain Valley Seed Company - **Color:** Black,Green - **Expected Blooming Period:** Summer - **Expected Planting Period:** Winter - **Indoor/Outdoor Usage:** Indoor - **Material Feature:** GMO Free, Heirloom - **Product Care Instructions:** Water - **Special Feature:** Premium - **Sunlight Exposure:** Full Sun - **Unit Count:** 1.0 Fluid Ounces ## Images ![Watermelon Seeds - Black Diamond - 1 Oz ~400 Seeds - Citrullus lanatus - Farm & Garden Vegetable/Fruit Seed - Non-GMO, Heirloom, Open Pollinated, Annual - Image 1](https://m.media-amazon.com/images/I/81nzzEJCmtL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Quality seed delivered as promised *by R***D on May 22, 2025* Quality seed delivered as promise I would recommend them and we’ll buy again from them --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/290249191-watermelon-seeds-black-diamond-1-oz-400-seeds-citrullus-lanatus](https://www.desertcart.us/products/290249191-watermelon-seeds-black-diamond-1-oz-400-seeds-citrullus-lanatus) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-04*