- Variety Info
- Sowing Info
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Variety Info
Family: Asteraceae
Type: Sunflower (Learn more)
Native: North America
Hardiness: Annual
Exposure: Full Sun
Bloom Period: Summer
Plant Dimensions: 12' – 14' tall
Variety Info: 14"-18" flower heads with yellow petals and a green center
Attributes: Attracts Pollinators, Drought Tolerant, Edible Flower
Sowing Info
When to Sow Outside: RECOMMENDED. 1 to 2 weeks after your average last frost date.
When to Start Inside: 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.
Days to Emerge: 10 – 15 Days
Seed Depth: ¼" – ½"
Seed Spacing: A group of 3 seeds every 24"
Thinning: When 3" tall, thin to 1 every 24"
Your hardiness zone is
- R. W.Rated 5 out of 5 stars8/15/25Awesome, 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? BeginnerBIBotanical Interests8/20/25Hey 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 BuyerRated 5 out of 5 stars1/24/255 Stars
It's cold in illinois at this time in January. I can't wait for Spring to arrive.
- Mark W.Verified BuyerRated 5 out of 5 stars8/6/245 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