Mongolian Giant Sunflower Seeds

Helianthus annuus

Each 'Mongolian Giant' plant produces a single yellow flower up to 18" across that will provide extra-large seeds filled with tasty, hearty kernels. These single-stem sunflowers attract pollinators and are very easy to grow in almost any sunny garden, although a sunflower's size is dependent on the growing conditions. They also are drought tolerant and fast growing; you can almost watch them gain an inch or more a day! Inside this packet, we've included tips on how to protect your ripening seeds from squirrels and birds, and a recipe for roasting seeds. Edible, bittersweet petals make a sunny garnish on salads and appetizer plates.

$4.49 - $6.49 ~26 seeds
5.0
Rated 5.0 out of 5 stars
4

Why Not Add?

Features

Family

Asteraceae

Native

North America

Life Cycle

Life Cycle

Annual

Plant Height

Plant Height

Tall (Greater than 24")

Flower Color

Flower Color

Yellow

Bloom Season

Bloom Season

Summer

Further Information

Plant Characteristics

Plant Characteristics

  • Attracts Pollinators
  • Edible Flower
Growing Conditions

Growing Conditions

Drought Tolerant

About ["Sunflower"]

Helianthus annuus

14"-18" flower heads with yellow petals and a green center

Planting ["Sunflower"]

Plant Spacing

A group of 3 seeds every 24"

Light Required

Light Required

Full Sun

Plant Height

Plant Height

Tall (Greater than 24")

Planting Depth

Planting Depth

¼" – ½"

Planting Details

Seed Depth ¼" – ½"
Seed Spacing A group of 3 seeds every 24"
Thinning When 3" tall, thin to 1 every 24"
Germination 10 – 15 Days
Start Indoors 2 to 4 weeks before your average last frost date. Sunflowers are sensitive to root disturbance; sow in biodegradable pots that can be planted directly in the ground.
Direct Sow RECOMMENDED. 1 to 2 weeks after your average last frost date.

Find Your Frost Date & Grow Zone

5.0
Rated 5.0 out of 5 stars
Based on 4 reviews
Total 5 star reviews: 4 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Slide 1 selected
Rating
Ratings
Which best describes you as a gardener?
Which best describes you as a gardener?
4 reviews
  • Andrea H.
    Verified Buyer
    Rated 5 out of 5 stars
    2/10/26
    Very Satisfied Customer

    These fascinate me. Also interesting to watch them grow.

    Wanted to feed the birds with them😇🍀

    Which best describes you as a gardener? Intermediate
    BI Profile picture for Botanical Interests
    Botanical Interests
    2/16/26

    Hey Andrea,

    Thank you so much for your review of our Mongolian Giant Sunflower Seeds! It's amazing to see them transform from tiny seeds into towering beauties that can feed our feathered friends. We love that you're planning to share the bounty with the birds - they're going to be so happy with those big, nutritious seeds! Thank you for choosing us and for sharing your growing experience with us. Keep on growing 🌻️

  • R. W.
    Rated 5 out of 5 stars
    8/15/25
    Awesome, Awesome, Awesome

    My first time growing these and they will now become a yearly ritual. I've had cars passing by stop just to tell me how amazing they look. People walking by have asked if I would take their picture in front of them. I've had so many compliments on theae giants. They've grown to 11-12' tall and the center of the flowers are about 8" . I live in zone 6b and am right on the ocean so with this years weather I didn't get to plant them until May 31st.

    I had a picture taken today of me standing next to them as a reference. I'm 5'2" and look like a dwarf next to them. My sunflowers are 15' from the road on a busy little one way street .... they pretty much jump out at you as you drive by. I plan on asking everyone on my street to let me plant some in their front yards next season. All the houses on my street are about 10' from the roadway with a tiny grassy area in front of the house next to the sidewalk. Just enough room to plant them. With all 32 houses along this narrow street it will resemble Colorado Blvd.i n LA with all their tall palm trees. We will surely be the talk of the town as will you if plant these beauties in your yard as well.

    Which best describes you as a gardener? Beginner
    BI Profile picture for Botanical Interests
    Botanical Interests
    8/20/25

    Hey R. W.,

    Thank you so much for sharing your incredible experience with our Mongolian Giant Sunflower Seeds! We absolutely love hearing about those 11-12' tall giants with 8" centers - what amazing results, especially considering you didn't get them planted until May 31st! I love that cars are stopping to take photos with them. What a great way to bring smiles to others! Your vision of turning your entire street into a sunflower-lined Colorado Boulevard sounds absolutely amazing - 32 houses of these giants would definitely make you the talk of the town! It's so wonderful that these have become your new yearly ritual. Please let us know how it goes! Keep on growing 🌻️

  • Mary J. C.
    Verified Buyer
    Rated 5 out of 5 stars
    1/24/25
    5 Stars

    It's cold in illinois at this time in January. I can't wait for Spring to arrive.

  • Mark W.
    Verified Buyer
    Rated 5 out of 5 stars
    8/6/24
    5 Stars

    VERY HAPPY WITH MY EXPERIENCE, AND VERY HAPPY WITH THE SUNFLOWER SEEDS. GREAT EXPERIENCE ALL AROUND.

    Which best describes you as a gardener? Intermediate

Recently Viewed Products

Decorative strip