Sandia Seed Company

Marconi Giant F1 Pepper Seeds - Smoky-Sweet Flavor - High Yield

Name: Marconi Giant F1 Pepper Seeds - Smoky-Sweet Flavor - High Yield
Brand: Sandia Seed Company
SKU: 705641-992041
Price: 2.49 USD
Availability: InStock

$ 2.49 USD

Sale Sold out

Product variants

Quantity

Marconi Giant F1 Sweet Pepper Seeds - A Prize-Winning Italian Delight

Experience the bold, smoky-sweet flavor of Marconi Giant F1 Sweet Peppers, an All-America Selections Winner celebrated for its exceptional taste and high yields. These Italian heirloom-inspired peppers grow into massive 8" long fruits, perfect for grilling, roasting, or enjoying fresh in salads.

Why Choose Marconi Giant F1 Sweet Pepper Seeds?

• Prize-Winning Flavor: Recognized as a 2001 All-America Selections Winner for its rich, sweet taste that intensifies when peppers turn bright red.

• Heat-Tolerant & Prolific: Thrives in summer heat and humidity, producing abundantly until the first frost.

• Versatile in the Kitchen: Delicious raw, but transforms into a smoky masterpiece when grilled or roasted.

• Reliable Growth: Tall 36" plants yield large peppers in just 62 days from transplant.

Growing Your Marconi Giant Peppers

Start these non-GMO pepper seeds indoors 8 weeks before transplanting. Sow 1/4" deep, keeping soil moist with bright light and bottom heat for optimal germination (7-14 days). Harden off seedlings and plant 30" apart in full sun with fertile soil. Harvest when peppers reach full size for that signature sweet flavor.

Bring home this award-winning pepper variety and enjoy the most flavorful sweet peppers your garden has ever produced!

Each packet contains 10 seeds
Heat Level: Sweet
SHU: 0
Maturity: 62 days after transplant
Pod Size: 8 in. Plant Size: 36 in.
Origin: Italy
Capsicum annuum
Hybrid
Untreated and Non-GMO

View full details

Recent Growing Tips & Recipes:

View all

Seeds to plant in January

January 13, 2026
Can you plant seeds in January? Yes, because for us gardeners, it's hard to resist waiting! And there is no reason to wait. That said, in most growing regions, starting...

Seeds to plant in January

January 13, 2026
Can you plant seeds in January? Yes, because for us gardeners, it's hard to resist waiting! And there is no reason to wait. That said, in most growing regions, starting...
Free Seeds with a Seed Catalog Order!

January 12, 2026
Order our printed Seed Catalog and get some FREE SEEDS*! For a limited time, get a FREE PACKET OF SEEDS with every print seed catalog ordered ($3 includes domestic shipping)....

Free Seeds with a Seed Catalog Order!

January 12, 2026
Order our printed Seed Catalog and get some FREE SEEDS*! For a limited time, get a FREE PACKET OF SEEDS with every print seed catalog ordered ($3 includes domestic shipping)....
Growing Peppers from Seed: Our Top 12 Tips

January 10, 2026
Growing Peppers from SeedOur Top 12 Tips 1. Use Fresh Pepper Seeds When stored in perfect conditions, pepper seeds can be viable for up to 25 years, but generally 2-5 years...

Growing Peppers from Seed: Our Top 12 Tips

January 10, 2026
Growing Peppers from SeedOur Top 12 Tips 1. Use Fresh Pepper Seeds When stored in perfect conditions, pepper seeds can be viable for up to 25 years, but generally 2-5 years...

1 3

View all

List of Pepper Seeds by Heat Level

LIST OF PEPPERS BY HEAT »

Green Chile Seeds

Discover all of the Green Chile Seeds Sandia Seed has to offer,...

Green Chile Seeds

NEW SEEDS

Grow something new in your garden! Check out our newest seeds we've...

NEW SEEDS

Best Peppers for Containers

If you want to grow peppers in containers, below are our top...

Best Peppers for Containers

Let customers speak for us

from 1382 reviews

Very Productive and HOT!!

I'm going to grow these every year, they are HOT!! They make great poppers and salsa. Very productive, easy to grow, quick germination and fast growing plants. Thank you for the stellar seeds.

Samuel

10/17/2025

Jalapeño Orange Spice NuMex Seeds - Ultra-Hot and Flavorful

Sugar and Spice and Everything Nice

I planted several cultivars from wholesale seed. These were prolific. See all that RED (and green)?!? Looking forward to harvesting in a few days. Thank You Sandia Seed!

Josh F

Hatch Red Medium - Joe E. Parker Chile Seeds - Popular Heirloom with Great Flavor

Jalapeño M

I pretty much use Sandia seeds exclusively! A few years ago I just happened to order your Jalapeño M. To me it's the perfect Jalapeño! Really nice size! Perfect heat for what we like! Wonderful flavor with a meatyness that's perfect for many different uses! I make my own Sriracha so I wait for them to turn red. They're one of my base peppers for my sauce! I praise them to all my personal friends and to members of groups that I belong to!

Bill Kozma, Solvang, Ca.

10/15/2025

Jalapeño M Pepper Seeds - Popular Heirloom with Flavorful Heat

Prolific pepper

Plants each produced dozens of beautiful peppers. Still going strong in October in Virginia

Mari Woehrle

10/13/2025

Big Jim Legacy Pepper Seeds - Flavor & Heat - A True New Mexico Chile

High producers

Serrano Hidalgo Seeds fromSandia Seed produce even in the HOT drought of central Illinois this year! I love adding a little Mexican kick to my salsa but also tossing these on the grill! They have great flavor and produce all summer long!

Angela McCabe

10/10/2025

Serrano Hidalgo Seeds - Hot Mexican Peppers - Salsa & Pickling

NH, USA in 5 gallon buckets

Quintessence of pepper flavor. Productive plant. Definitely will grow again.

M J Dubois

10/08/2025

Española Improved NuMex Chile Seeds - Robust Flavor and Early Maturity

Dynamite xx Hot peppers, 4 heat lovers only!

I had looked high & low, and searched the web with many word combinations ‘looking’ specifically for my favorite chili, the Dynamite xx Hot… so I could grow my own. The peppers were sold in Colorado at select places during roasting season, but you couldn’t buy seeds for them… anywhere!
Finally, as luck and persistence would have it, I discovered Sandia Seed Company.
Thank you Sandia! I planted them and had a great crop this year. I plan on growing them every year as well as trying some of their other seeds,

Linda O

10/06/2025

Dynamite Green Chile Seeds - Extra Hot Variety at 12,000 Scoville

Prolific Peppers!

There's just something fun about growing a jalapeno that is light enough in color that some people think it's a banana pepper. LOL! I picked these just for color variety, and I'm very pleased that my plants have been loaded with them all season! We donated about 50 lbs of mixed peppers this year from our garden and I still had enough to freeze some and can more jars of recipes than we'll probably be able to use before next season. All my peppers were from Sandia Seed Company. I've never had such great pepper production before using these seeds!!

Cmartcookie

Jalapeño Jaloro Pepper Seeds - Disease Resistant and Medium Heat

Big Jims

Excellent peppers, large and meaty. Easy to grow from your seeds.

S Latta

10/04/2025

Tasty and prolific

This spinach germinated well, and produced way more spinach than I'd initially expected. It grew really well, was slow to bolt in the summer, and has a really nice mild flavor for salads or steamed.

Melissa B

09/29/2025

Bloomsdale Spinach Seeds - Easy to Grow, Popular, and Nutritious

Beautiful Reds

Love this Hatch variety chili, next best thing to living in New Mexico! Yep, they grow in Oklahoma too!

Buster Holzer

09/27/2025

Awesome peppers!

This was my first time growing these and I will definitely be growing them from now on. Great germination and very sturdy plants that have withstood some really high winds. Huge long peppers that are excellent green or red, very easy to peel skin.

Dre Snow

09/25/2025

Hatch Green Medium - Big Jim Chile Seeds - Nice Heat & Great Flavor

Wow! BIG JIM PEPPERS

Growing these in Florida, (Recent transplant of NM).
Lovely peppers. Took a couple weeks is all and wow! I have several budding; 2 large enough to nickname. They're still in their infancy, but I can tell they are going to be great! Love the seeds!

BIG MARK

09/24/2025

Excellent!

Prudens purple was huge, productive, and delicious. Very crack resistant. Amazing!

Jamie

Pruden's Purple Tomato Seeds - Old Family Heirloom - Sweet Taste

Jalapeno to Chipotle

I got these to make Chipotle chilis. These fruit early and are mild-ish when green, but when they ripen, they are perfect for smoking and drying with great flavor and nice heat. Don't plant too many as they are quite prolific.

Dale DuVall

09/23/2025

Jalapeño Early Seeds - Short Season Pepper and Easy to Grow

Country/region

Marconi Giant F1 Pepper Seeds - Smoky-Sweet Flavor - High Yield