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Product Details
Product Details
Cutting into this large, 20–35 pound, oblong melon will reveal plenty of juicy, sweet, yellow fruit. These melons have a dark green rind marked with lighter green stripes. Developed from the very popular red-fleshed 'Mountain Sweet' melon grown in the mid-1800s by farmers in the Northeast, this variety grows in any region with warm summers. Long, warm summers produce the largest watermelons.
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- Variety Info
- Sowing Info
- Growing Info
Variety Info
Days to Maturity: 95–100 days
Family: Cucurbitaceae
Type: Watermelon (Learn more)
Native: Africa
Hardiness: Frost-sensitive annual
Exposure: Full sun
Plant Dimensions: 6'–10' vines
Variety Info: Mountain Sweet Yellow' produces oblong fruits that average 20–35 pounds. Outer rind is dark green with lighter green stripes. The yellow interior is firm and sweet.
Attributes: Frost Sensitive
Sowing Info
When to Sow Outside: RECOMMENDED. 1 to 2 weeks after your average last frost date, and when soil temperature is 70°–90°F.
When to Start Inside: Not recommended except in very short growing seasons, 2 to 4 weeks before transplanting. Roots are sensitive to disturbance; sow in biodegradable pots that can be planted directly into the ground. Transplant when soil temperature is at least 60°F.
Sprouts in: 5–10 days
Plant Seeds (Depth): ½"
Space Seeds: 2–3 seeds per mound
Row Spacing: 4'–6' apart
Thinning: When 3 leaves, thin to 1 plant per mound
Growing Info
Harvesting: It can be tricky to know exactly when a watermelon is ripe and ready to pick. First, know the number of "days to harvest" and begin checking fruits as harvest date draws closer. Signs to look for are: (1) the bottom of the melon (where it lies on the soil) turns from light green to a yellowish color; (2) the surface color of the fruit turns dull; (3) the skin becomes resistant to penetration by the thumbnail and is rough to the touch; and (4) light green, curly tendril on the stem near the point of attachment of the melon is brown and dry. All of these indicators may not necessarily occur at the same time.
- William S.VA, United StatesVerified BuyerRated 5 out of 5 starsJul 1, 2026GREAT WATERMELON!!
This melon has moved to the top of my list for favorite watermelon! It's big, bright yellow flesh, and tastes like candy! It doesn't get much better than that! Turned out to be the best of my crop last year so I'm growing 3x as many this year.
Which best describes you as a gardener? IntermediateWho do you grow for? YourselfHow do you prefer to grow? Raised BedEGEpic GardeningJul 3, 2026Hey William,
We're absolutely thrilled to hear that Mountain Sweet Yellow Watermelon has moved to the top of your favorites list! There's nothing better than finding a watermelon variety that delivers on all fronts - big size, gorgeous yellow flesh, and that amazing candy-like sweetness! We love that you had such fantastic success with them last year and are so confident you're tripling your planting this season. That's the kind of enthusiasm we love to see! Thanks for sharing your watermelon growing success with us! Keep on growing 🌻️
- AmandaVerified BuyerRated 4 out of 5 starsNov 27, 2025Overall Great
Tasted great and sweet, but the seeds were just too tough for me to find pleasant to chew, and too many to spit out. For that reason, I cant give the full 5 stars. These were large melons, easily 25+ lbs. I enjoyed growing these but will skip out next year
Which best describes you as a gardener? IntermediateEGEpic GardeningNov 27, 2025Hey Amanda,
Thank you so much for the 4-star review and for sharing your honest experience with the Mountain Sweet Yellow Watermelon Seeds! We're thrilled to hear that you grew some absolutely massive melons - 25+ pounds is seriously impressive! - and that the flavor was great and sweet.
We totally understand your feedback about the seeds. Mountain Sweet Yellow is an heirloom variety that does tend to have those larger, more prominent seeds compared to some of the newer seedless or thin-seeded varieties. For folks who really want to enjoy eating the whole bite without dealing with seeds, it can definitely be a bit much having to navigate around them or spit them out constantly.
It sounds like you had fantastic growing success with these though! Getting watermelons that size shows you really nailed the growing conditions. The flavor being sweet and delicious is exactly what we love to hear about this variety - it's just that the seed situation wasn't quite right for your eating preferences.
Your feedback about the seed texture and quantity will be really helpful for other gardeners who are trying to decide if this variety is the right fit for their taste preferences and eating style.
Keep on growing 🌻️
- StephanieTX, United StatesRated 5 out of 5 starsOct 14, 2025Love the seeds
2 of mines that I grew with these seeds. Still have some growing. 16 of them. I didn't use any fertilizer just soil and water.
Which best describes you as a gardener? BeginnerWho do you grow for? YourselfHow do you prefer to grow? In GroundEGEpic GardeningOct 15, 2025Hey Stephanie,
Thank you so much for this fantastic 5-star review! "Love the seeds" is exactly what we love to hear about Mountain Sweet Yellow Watermelon Seeds - and wow, those gorgeous watermelons in your photos are absolutely stunning!
We absolutely love that you achieved such incredible success with just the basics - soil and water!
Your no-fertilizer success and beautiful harvest will be so inspiring for other gardeners who want to discover just how rewarding and easy-growing Mountain Sweet Yellow Watermelon Seeds can be for creating amazing homegrown watermelon harvests with minimal inputs!
Keep on growing 🌻️
- LauraAL, United StatesVerified ReviewerRated 5 out of 5 starsMay 3, 2025Fantastic!
I am a beginner gardener and I’ve never grown anything before but I was determined to grow yellow watermelons this year. It’s going great! I have three watermelons growing from three different seeds - it’s been a long journey but it’s going well. I would recommend these seeds to anyone who is determined to grow yellow watermelon.
Which best describes you as a gardener? BeginnerWho do you grow for? YourselfHow do you prefer to grow? ContainerEGEpic GardeningJul 24, 2025Hey Laura,
This is SO exciting! We're absolutely thrilled to hear that you're having such success with your first gardening adventure. Three watermelons from three seeds - that's fantastic! Yellow watermelons are definitely worth the wait, and it sounds like you're doing everything right. Your determination is really paying off and we can't wait for you to taste those sweet, sunny fruits. Thank you for sharing your journey with us! Keep on growing 🌻️
- Jeremiah P.Verified BuyerRated 5 out of 5 starsMay 20, 20245 Stars
These seeds where the fastest seeds to sprout that I ever grown
Which best describes you as a gardener? Intermediate
