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Description
planting mammoth sunflower seeds Sunflower Mammoth – Pittsboro FeedThis giant among sunflowers is a fast grower whose single stalk can reach 12' tall and produces one 10" 12" flower! Not fussy about soil, it's very easy to grow and drought tolerant. Grow in a tight row to make an attractive screen. Sow monthly for continual bloom. Variety Info Family: Asteraceae Type: Sunflower Native: North America Hardiness: Annual Exposure: Full sun Bloom Period: Summer to frost Plant Dimensions: 6'12' tall Variety Info: Up to 12"
This giant among sunflowers is a fast grower whose single stalk can reach 12' tall and produces one 10"-12" flower! Not fussy about soil, it's very easy to grow and drought tolerant. Grow in a tight row to make an attractive screen. Sow monthly for continual bloom.
Variety Info
- Family: Asteraceae
- Type: Sunflower
- Native: North America
- Hardiness: Annual
- Exposure: Full sun
- Bloom Period: Summer to frost
- Plant Dimensions: 6'–12' tall
- Variety Info: Up to 12"-wide flowers with yellow petals and a brown center. Single type.
- Attributes: Attracts Pollinators, Cut Flower, Drought Tolerant, Heat 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 senstive 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"
Growing Info
- Harvesting: Seeds are ready to harvest when the back of the head has dried and turned brown, about 4 weeks after the flowers have been pollinated. Petals will have wilted and fallen off, and the seeds will be plump, and colored white with gray/black stripes. Seeds ripen around the outside of the flower first; the ones in the center will ripen last. Average yield is approximately 1 pound per head.
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4.4 ★★★★★
Based on 1135 reviews
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Product Reviews
★★★★★ 4
Good Shelves
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 3, Size: 22.5inches
These shelves are really nice quality and look as advertised. The hardware included was great quality, metal drywall anchors and good screws. They were easy to install, and make even/level with each other. My only gripe is the price, but I'm very satisfied with the product overall.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Attractive, easy to install, nicely equipped hardware package.
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 2, Size: 22.5inches
These are pretty doggone nice shelves and I appreciate the fact that they are not made of solid particle board. Yes they are made of an engineered product, but they are lightweight and strong…and look better than particle board products and more costly than their actual price.
Easy installation system with the bracket…not fussy like some are.
An especially thoughtful touch is the variety of hardware that is included. Also a tiny level for use when installing them. What? …So they can be installed correctly? I was pleasantly surprised by this inclusion.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Beautiful shelves
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 2, Size: 22.5inches
Great quality shelves, have them in 4 rooms, they are easy to hang up and lightweight, look really nice and keeps room looking organized and clean.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Perfect for a coffee bar
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 3, Size: 15.7inches, Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 3, Size: 15.7inches
These are great for my coffee bar! These shelves are easy to install and came with all the hardware needed. What a great value for your money, especially when you get 3 of these cute shelves. I love how they help organize my coffee bar area and the size fits perfectly.
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Reviewed in the United States on May 26, 2026
★★★★★ 4
If the set screws were white the shelves would be perfect.
Color: C. White - Modern Minimalist Style, Number Of Shelves: 3, Size: 15.7inches
I'd give 4 1/2 if there was one. The shelves thwmself are nice I just don't like the visible little black set screws. The shelves themself look great and are not wobbly at all if you install correctly. I purposely installed the bracket upside down because of the little black setting screws; I didnt want them showing because the shelves are above eye level and the screws are black and I didn't want them showing. But that made the shelf lean amd wobbly so I turned them back over the way they are supposed to be and that made them level and sturdy. I guess I'll paint the little screws.
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Reviewed in the United States on January 21, 2026