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Mammoth Russian Sunflower Seeds

Mammoth Russian Sunflower Seeds

283 Ratings
$4.99 USD
$4.99 USD
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Create your own indoor oasis with these 20 pieces of Mammoth Russian Sunflower Seeds. Perfect for those with a green thumb, these sunflowers are very easy to grow and are ideal for subtropical climates. You'll enjoy watching them bloom during the summer months, adding a pop of color and life to any room. The seeds come in a pack of 20, so you'll have plenty to work with. Please note, the flowerpot is not included.

Product Details
  • Product Type: Bonsai
  • Use: Indoor Plants
  • Cultivating Difficulty Degree: Very Easy
  • Full-bloom Period: Summer
  • Type: Blooming Plants
  • Flowerpot: Excluded
  • Variety: Sunflower
  • Climate: Subtropics
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  • Species and varieties: Helianthus annuus, commonly known as the common sunflower. The 'Mammoth Russian' variety is known for its large size and impressive height, often reaching up to 12 feet tall with flower heads that can be over a foot in diameter.
  • Hybrid or heirloom: The Mammoth Russian sunflower is an heirloom variety, meaning it has been passed down through generations without genetic modification. It is prized for its large seeds, which are excellent for eating or feeding to birds.
  • Pruning and training: Mammoth Russian sunflowers do not require pruning. However, they may need staking or support to prevent them from toppling over due to their height and the weight of their large flower heads. Planting them in a sheltered location can also help protect them from strong winds.
  • Fertilization needs: These sunflowers benefit from a balanced fertilizer applied at planting time. Additional feeding with a high-phosphorus fertilizer can promote strong root development and flowering. Avoid over-fertilizing with nitrogen, as this can lead to excessive foliage growth at the expense of flowers.
  • Hardiness zones: Mammoth Russian sunflowers are suitable for USDA hardiness zones 3 through 9. They are quite adaptable and can be grown in a wide range of climates.
  • Climate requirements: These sunflowers thrive in full sun and prefer well-drained soil. They are drought-tolerant once established but will perform best with regular watering, especially during dry periods. They require a long growing season of 70 to 100 days to reach maturity.

Real Stories From Real People

  • Emily

    ⭐⭐⭐⭐⭐

    The seeds from McKinley Seeds are incredible! Every packet I’ve purchased has had a high germination rate, and the plants are growing strong. The quality is clearly top-notch, and I’ve already harvested some beautiful vegetables from their seeds. Highly recommend for any home gardener!

  • Rachel

    ⭐⭐⭐⭐⭐

    Shopping with McKinley Seeds was a breeze. The website is easy to navigate, and my order arrived quickly and in perfect condition. The customer service was very responsive, helping me pick the right seeds for my climate. I’m extremely satisfied and will definitely order from them again!

  • Sophia

    ⭐⭐⭐⭐⭐

    McKinley Seeds offers a fantastic range of seeds, from flowers to vegetables and herbs. I was able to find everything I needed to start my garden. Whether you’re planting vegetables or looking to add some color with flowers, McKinley Seeds has a diverse collection for all types of gardens.

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