Skip to content
🌱 End-of-Season Sale: 35% Off Everything + Free Shipping on Orders $35+ 🌿
🌱 End-of-Season Sale: 35% Off + Free Shipping on $35+ 🌿
Big Blue Guatemalan Squash - Heirloom Winter Seeds | Blue Banana Shaped Fruit
Big Blue Guatemalan Squash - Heirloom Winter Seeds | Blue Banana Shaped Fruit
Big Blue Guatemalan Squash - Heirloom Winter Seeds | Blue Banana Shaped Fruit
Big Blue Guatemalan Squash - Heirloom Winter Seeds | Blue Banana Shaped Fruit
Big Blue Guatemalan Squash - Heirloom Winter Seeds | Blue Banana Shaped Fruit
a lush garden filled with a variety of colorful vegetables, including tomatoes, lettuce, and other leafy greens, with a quote overlaid on the image promoting the idea that the healthiest food comes from growing your own.
Big Blue Guatemalan Squash - Heirloom Winter Seeds | Blue Banana Shaped Fruit
Big Blue Guatemalan Squash - Heirloom Winter Seeds | Blue Banana Shaped Fruit
Big Blue Guatemalan Squash - Heirloom Winter Seeds | Blue Banana Shaped Fruit
Big Blue Guatemalan Squash - Heirloom Winter Seeds | Blue Banana Shaped Fruit
Big Blue Guatemalan Squash - Heirloom Winter Seeds | Blue Banana Shaped Fruit
a lush garden filled with a variety of colorful vegetables, including tomatoes, lettuce, and other leafy greens, with a quote overlaid on the image promoting the idea that the healthiest food comes from growing your own.

Big Blue Guatemalan, Heirloom Winter Squash Seeds

$0.00 - $0.00
$0.00
$4.39
$4.39 - $4.39
$4.39
Pkt Size-Apprx Seeds: 2.0 g / 10+ Seeds

Big Blue Guatemalan, Heirloom Winter Squash Seeds — The Giant Blue-Gray Heirloom With Sweet, Dry, Orange Flesh

Big Blue Guatemalan (Cucurbita maxima) is a massive, blue-gray heirloom winter squash from Guatemala — large, flattened fruits with smooth blue-gray skin and sweet, dry, deep orange flesh that is exceptional for pies, soups, and roasting. Can weigh 20–40 lbs. Outstanding keeper. A true garden showstopper. 100 days.

Why Grow Big Blue Guatemalan?

  • Massive 20–40 lb blue-gray fruits — a true garden showstopper
  • Sweet, dry, deep orange flesh — exceptional for pies, soups, and roasting
  • Outstanding keeper — stores for months after harvest
  • Rare Guatemalan heirloom — a unique addition to any seed collection
  • Open-pollinated heirloom — save seed year after year

Growing Notes

Direct sow outdoors after last frost in full sun, or start indoors 3–4 weeks before transplanting. Sow 1 inch deep, spacing plants 48–60 inches apart. Water consistently. Harvest when skin is hard and stem is dry.

Days to Maturity 100 days
Fruit Weight 20–40 lbs
Packet Size 10 seeds
Spacing 48–60 inches
Latin Name Cucurbita maxima
Type Heirloom, Open-Pollinated, Non-GMO, Annual
Sun Full sun
USDA Zones 3–12

Packed and shipped by Box Garden Seeds LLC — heirloom seeds grown without GMOs, selected for flavor, resilience, and your garden’s success.

Let customers speak for us

from 5289 reviews
I cant wait to plant them

I cant wait to plant them.

Bill Stock
Sugar Baby Watermelon, Heirloom Seeds
Sugar Baby Watermelon, Heirloom Seeds
Love this carrot

Love this carrot, beautiful color and tasty

Anonymous
Cosmic Purple Carrot, Heirloom Seeds
Cosmic Purple Carrot, Heirloom Seeds
Very happy with the product

Very happy with the product.

Princess OBrien
Amish Butter, Heirloom Popcorn Seeds
Amish Butter, Heirloom Popcorn Seeds

Great shipping and all was as advertised.

Etsy customer
Common Purslane, Heirloom Seeds
Common Purslane, Heirloom Seeds

Excellent experience. It was absolutely a joy throughout the whole process. I'm very grateful.

Adam
Winged Bean, Heirloom Seeds
Winged Bean, Heirloom Seeds

Not everyone sells these and I absolutely love them in my summer salads! Thanks for offering them!!!

Kimberly FIfer
Yellow Pear, Heirloom Tomato Seeds
Yellow Pear, Heirloom Tomato Seeds

So happy to get these seeds for my garden this year!

Kimberly FIfer
Red Cherry, Heirloom Tomato Seeds
Red Cherry, Heirloom Tomato Seeds

Your seeds are GREAT! I'm looking forward to planting these again this year!!!

Kimberly FIfer
Genovese Basil, Heirloom Seeds
Genovese Basil, Heirloom Seeds

So happy to be adding these seeds to my garden this year!! Thanks so much for the offering!

Kimberly FIfer
Cherry Bomb Hot Pepper, Heirloom Seeds
Cherry Bomb Hot Pepper, Heirloom Seeds

Seller is pleasant and shipment was swiftly excited to plant and see the outcome ty

Sharon
Incredible, F1 Hybrid Sweet Corn Seeds
Incredible, F1 Hybrid Sweet Corn Seeds

Thank you very much! they look great and arrived in good condition!

Ralph Bishop
Chinese 5 Color Pepper, Heirloom Seeds
Chinese 5 Color Pepper, Heirloom Seeds

The seeds arrived around the estimated time of arrival. They were well packaged and looked good. I planted a few 3 days ago and I've already got sprouts.

Rachel Kay
Pink Lady Slipper Radish, Heirloom Seeds
Pink Lady Slipper Radish, Heirloom Seeds

The seeds are planted, now we wait!

Diana Kassman
Cherry Bomb Hot Pepper, Heirloom Seeds
Cherry Bomb Hot Pepper, Heirloom Seeds

I hope these flowers will grow in North Dakota! The colors are vibrant and hopefully the bees will like them. I will have to wait until after the Big Thaw in April before I can plant them - can't wait!

Doreen Talma
Cornflower Mix, Heirloom Seeds
Cornflower Mix, Heirloom Seeds

Yfhnj 6yhu off dss jjhj

Henry Maldonado
Cornflower Mix, Heirloom Seeds
Cornflower Mix, Heirloom Seeds