---
product_id: 179964617
title: "Sow Right Seeds - Mammoth Sunflower Seed for Planting Giant Flower Garden"
brand: "sow right seeds"
price: "¥1608"
currency: JPY
in_stock: true
reviews_count: 8
category: "Sow Right Seeds"
url: https://www.desertcart.jp/products/179964617-sow-right-seeds-mammoth-sunflower-seed-for-planting-giant-flower
store_origin: JP
region: Japan
---

# Up to 12 ft tall giants Pollinator & bird magnet Germinates in 7-14 days Sow Right Seeds - Mammoth Sunflower Seed for Planting Giant Flower Garden

**Brand:** sow right seeds
**Price:** ¥1608
**Availability:** ✅ In Stock

## Summary

> 🌞 Grow Mammoth, Grow Magic: Your Garden’s Next Big Star!

## Quick Answers

- **What is this?** Sow Right Seeds - Mammoth Sunflower Seed for Planting Giant Flower Garden by sow right seeds
- **How much does it cost?** ¥1608 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/179964617-sow-right-seeds-mammoth-sunflower-seed-for-planting-giant-flower)

## Best For

- sow right seeds enthusiasts

## Why This Product

- Trusted sow right seeds brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sky-High Blooms:** Grow stunning 8-12 ft tall sunflowers that dominate your garden skyline.
- • **Family Fun & FOMO:** Create unforgettable moments watching these giants grow—don’t miss out on the garden envy!
- • **Fast-Track Growth:** Watch your garden transform quickly with seeds sprouting in just 7-14 days.
- • **Pollinator Paradise:** Attract buzzing bees and chirping birds, boosting your garden’s natural ecosystem.
- • **Eco-Friendly & Non-GMO:** Feel good planting heirloom seeds from a solar-powered, sustainable source.

## Overview

Sow Right Seeds’ Mammoth Sunflower seeds produce towering 8-12 ft tall blooms in 80-90 days, perfect for USDA zones 3-13. Each premium packet contains 70-80 non-GMO heirloom seeds that germinate rapidly in 7-14 days under full sun. These fast-growing giants attract pollinators and birds, supporting local ecosystems while offering a sustainable, solar-powered seed source. Ideal for gardeners seeking impressive, eco-conscious outdoor displays with easy care and family-friendly planting experiences.

## Description

desertcart.com : Sow Right Seeds - Mammoth Sunflower Seed for Planting Giant Flower Garden | Plant non-GMO heirloom sun flowers for outdoor home gardening. Outside vibrant annual variety attracts butterflies and birds. : Patio, Lawn & Garden

Review: Bringing Sunshine and Joy to Our Garden! - These sunflowers are growing incredibly fast! They truly are like the sunshine of our garden. Both my daughters and I are absolutely shocked by their height and mind-blowing growth speed. It is so beautiful, and it brings us so much joy to watch them shoot up day by day. It’s been a wonderful, magical experience to share with my kids. Highly recommend!
Review: Mammoths are not extinct! - I planted some of these seeds to grow sunflowers to feed the squirrels around my house. These things were MAMMOTH! I only planted 5 seeds. They all germinated and all produced seed heads over 12" across. The squirrels loved them! The plants were close to 10 ft tall. After the seed heads are harvested, you can dry the stalks to make strong support poles for other garden vegetables. Keep some seeds for next season!

## Features

- Beautiful - Large premium packet of Mammoth Sunflower (Helianthus var. ‘Mammoth’) seeds. These blooms grow up to 12 feet tall, creating cheerful summer displays for your outdoor space. These fast-growing flowers are easy to plant and care for - your family will enjoy watching these giants grow from seed to bloom! The seeds are open pollinated and can be saved to plant each year. You can also harvest and roast your own sunflower seeds! Minimum of 8g per packet (approximately 70 to 80 seeds).
- Productive - Mammoth Sunflower germinates in 7-14 days when soil temps are 70-75°F. Plant 1” deep and space 3’ apart in an area with full sunlight. This variety will grow 8-12’ tall with a spread of 2-3’. Flowers will mature in 80-90 days, plant in USDA zones 3-13.
- Pollinator and Bird Friendly - Bees love the nectar in sunflowers and will travel around helping pollinate your garden. Towards the end of the season, birds also love to come and eat the dried seeds. Great way to support local pollinators!
- Easy to Grow - Instructions included on each packet. Plus, we are available to answer all your questions. If these seeds don’t germinate, we will happily make it right for you.
- Safe and Sustainable - Our operation is fully solar powered, and Sow Right Seeds has taken the Safe Seed Pledge to sell only fresh Non-GMO heirloom seeds for you and your family.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07XBNFX7D |
| Best Sellers Rank | #11,107 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #69 in Flower Plants & Seeds |
| Brand | Sow Right Seeds |
| Brand Name | Sow Right Seeds |
| Color | Grey |
| Customer Reviews | 4.3 out of 5 stars 6,521 Reviews |
| Indoor Outdoor Usage | Outdoor |
| Indoor/Outdoor Usage | Outdoor |
| Item Weight | 9.07 g |
| Material Feature | GMO Free, Heirloom |
| Material Features | GMO Free, Heirloom |
| Moisture Needs | Moderate Watering |
| Number of Pieces | 70 |
| Other Special Features of the Product | Attracts Pollinators, Fragrant, High Germination Rate |
| Plant or Animal Product Type | sunflower seeds |
| Soil Type | Loam Soil |
| Special Feature | Attracts Pollinators, Fragrant, High Germination Rate |
| Sunlight Exposure | Full Sun |
| UPC | 691324789889 |
| USDA Hardiness Zone | 3 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Sow Right Seeds
- **Color:** Grey
- **Indoor/Outdoor Usage:** Outdoor
- **Item Weight:** 9.07 g
- **Material Feature:** GMO Free, Heirloom
- **Soil Type:** Loam Soil
- **Special Feature:** Attracts Pollinators, Fragrant, High Germination Rate
- **Sunlight Exposure:** Full Sun
- **USDA Hardiness Zone:** 3
- **Unit Count:** 1 Count

## Images

![Sow Right Seeds - Mammoth Sunflower Seed for Planting Giant Flower Garden - Image 1](https://m.media-amazon.com/images/I/81ltxwl4ZnL.jpg)

## Available Options

This product comes in different **Item Package Quantity** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bringing Sunshine and Joy to Our Garden!
*by Y***O on July 8, 2026*

These sunflowers are growing incredibly fast! They truly are like the sunshine of our garden. Both my daughters and I are absolutely shocked by their height and mind-blowing growth speed. It is so beautiful, and it brings us so much joy to watch them shoot up day by day. It’s been a wonderful, magical experience to share with my kids. Highly recommend!

### ⭐⭐⭐⭐⭐ Mammoths are not extinct!
*by S***Y on August 13, 2026*

I planted some of these seeds to grow sunflowers to feed the squirrels around my house. These things were MAMMOTH! I only planted 5 seeds. They all germinated and all produced seed heads over 12" across. The squirrels loved them! The plants were close to 10 ft tall. After the seed heads are harvested, you can dry the stalks to make strong support poles for other garden vegetables. Keep some seeds for next season!

### ⭐⭐⭐⭐⭐ Huge Sunflowers with Minimal Care; No Fertilizer Needed
*by S***A on June 27, 2026*

I almost gave these seeds a mediocre review based on my experience last year, but I'm glad I gave them a second chance. Last year, we purchased these Mammoth Sunflower seeds but ended up sowing them fairly late in the season. The plants only reached about 2–3 feet tall, and the flowers looked more like typical wild-type sunflowers than the giant mammoths I was expecting. I was honestly a little disappointed. Fortunately, I saved the leftover seeds in my refrigerator and tried again this year. I sowed them at the end of March (we're in USDA Zone 8–9), and wow!! what a difference! Within about 2.5–3 months, several plants reached an impressive 10–12 feet tall in a raised bed that is only about 1 foot high. What's even more impressive is that I didn't use any fertilizer. The plants were grown in plain potting soil with mulch and a mycorrhizae product I also purchased from Amazon. One thing I didn't anticipate was just how large these plants would become. Had I known, I would have spaced them further apart. The sunflowers growing on the ends of the raised bed had the most room and became absolute giants, with stalks a couple of inches thick and enormous leaves. The plants growing in the middle were shaded by those huge leaves, received less sunlight, and stayed much smaller similar to my results from last year. Their stems remained softer and thinner as well. My takeaway - timing, spacing, and full sun matter a lot. If you sow these seeds at the right time and give them adequate space and sunlight, you will absolutely get the mammoth sunflowers advertised. I'm very happy with this year's results and would buy them again.

## Frequently Bought Together

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-24*