Mammoth Grey Stripe Sunflower Seeds For Planting (Helianthus annuus)
Quantity
$3.99
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basic information
Mammoth Grey Stripe Sunflowers (Helianthus annuus) produce towering blooms with vibrant yellow petals surrounding large, puffy centers packed with edible seeds. Their striking grey-striped seeds are perfect for roasting or attracting birds. These sunflowers add bold beauty to gardens, with single, oversized flower heads that make a stunning focal point. Ideal for sunny borders or as a natural screen.
Seed Count
50 SEEDS
Open Pollinated
YES
Pollinator Friendly
NO
Heirloom
YES
Untreated
YES
Non-GMO
YES
How To Grow
GROWER TIP: Sunflowers develop long taproots, so it is best to use a loose sowing medium. They also do not transplant well, so if you decide to start some of your sunflowers indoors, we recommend using biodegradable CowPots. Direct sow in early spring when temperatures are at least 65°F.
SEED PREP
No seed prep needed.
SOWING DEPTH
1/2” under
LIGHT PREFERENCE
Full sunlight
SOIL CONDITIONS
Adaptable but well drained.
MOISTURE NEEDS
Water daily
GERMINATION
7 to 10 days.
PLANT HEIGHT
6’ to 10’ tall
PLANT WIDTH
24” to 30” wide
PLANT SPACING
12” to 18” apart.
CUT FLOWER
YES
FLOWER SIZE
10” to 12”
SEASON
Annual
SCIENTIFIC NAME
Helianthus annuus
DIFFICULTY LEVEL
Very easy to germinate and grow.
FLOWER COLOR
Yellow
