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Product Description
Sunflower Seeds for Planting to Plant Thick Red – Seed for Bold and Striking Garden Blooms
Bring powerful color and impact to your garden with these thick red sunflower seeds, producing large, richly pigmented blooms in deep crimson tones. Known for their strong, sturdy stems and vibrant petals, these sunflowers make an impressive statement in borders, landscapes, and floral arrangements. Easy to grow and pollinator-friendly, they attract bees, butterflies, and birds, adding life and beauty to your outdoor space.

Life Cycle
Annual
Planting Season
Spring–Early Summer
Growth Habit
Mounding Spreading
Flavor Profile
Not
Plant Characteristics
Deep Black Blooms
Use
Borders, Containers
Growing Conditions
Full Sun, Loamy Soil
Harvest Advantages
Continuous Bloom
Plant Resistance
Heat Tolerant
Seed Names
Black Velvet Petunia
Seed Type
Hybrid Open-Pollinated
Light Requirement
Full Sun
Planting Depth
Surface Sow
Sowing Method
Indoor or Direct
Plant Spacing
10–12 Inches
Days to Maturity
80–90 Days
Soil Preparation
No Soaking Needed
Hardiness Zones
9–11
Water Needs
Moderate
Planting Season
Spring
Seed Count
Recommended Coverage
100
Up to 50 sq ft
500
Up to 250 sq ft
1000
Up to 500 sq ft
Typically وThick Red Sunflower seeds germinate within 7 to 14 days under optimal temperature and moisture conditions.
Thick Red Sunflower plants can reach varying heights depending on the variety وusually between 1 to 3 feet when fully grown.
Water Thick Red Sunflower plants when the top inch of soil feels dry. Avoid waterlogging وas it may harm the roots.
A balanced وslow-release fertilizer applied once a month helps Thick Red Sunflower plants produce healthy blooms.
The best time to plant Thick Red Sunflower seeds is during spring or early summer when the soil is warm and frost-free.
Planted these in pots and garden beds. The plants grew incredibly strong and tall. Easy to care for, and the red flowers add a gorgeous pop. Definitely planning to reorder.
I planted these seeds in early spring, and by mid-summer, my garden was filled with vibrant red sunflowers. They sprouted quickly and grew thick and sturdy. Highly recommend for anyone looking to add color to their yard.
These red sunflower seeds were a hit with my kids. They loved seeing the plants grow tall and strong. Easy to plant and maintain, and they brighten the backyard beautifully.
About 70% of the seeds sprouted for me. The flowers that did grow were lovely and healthy, but I wish the germination rate was higher. Still, the red color is fantastic.
The seeds are good quality, and many sprouted well, but some had uneven growth. I planted in different soil mixes, and only the rich compost did really well. Still, the blooms are worth it.