Sunflower Seeds - Mongolian Giant Helianthus annuus
- Annual; Grows up to 14ft with 18in Blooms
- Open-Pollinated cultivar; Excellent for birds and butterflies
- Prefers full sun exposure
Availability & Turnaround Time
All seeds are shipped year-round, while flower bulbs are shipped on a seasonal basis. Typical turnaround times for in-stock items is between 2 – 5 business days.
| Category | Shipping Period |
|---|---|
| All Seeds: | |
| Zones 2 – 10 | Year-Round |
| Spring Planted Bulbs & Perennials (March - June): | |
| Zones 8 – 10 Pre-Orders | Mid March |
| Zones 7 Pre-Orders | Late March-Early April |
| Zones 6 Pre-Orders | Early-Mid April |
| Zones 5 Pre-Orders | Mid-Late April |
| Zones 2 – 4 Pre-Orders | Late April-Early May |
| All Zones Ship Until Inventory is Sold Out | May - June |
| Saffron Crocus & Bearded Iris (Late August - November): | |
| All Zones | Start Shipping late August |
| Fall Planted Bulbs & Perennials (September - January): | |
| Zones 2-4 Pre-Orders | Mid September |
| Zones 5 Pre-Orders | Mid-Late September |
| Zones 6 Pre-Orders | Late September |
| Zones 7 Pre-Orders | Late September - Early October |
| Zones 8-10 Pre-Orders | Early October |
| All Zones Ship Until Inventory is Sold Out | Mid October - January |
| Fall Perennial Roots/Bulbs* & Amaryllis Bulbs (October - January) | |
*Fall Perennial Roots/Bulbs include: Hosta Roots, Siberian Iris Roots, Lily Bulbs, Papaver Roots and Peony Roots.
We try our utmost to maintain reliable inventory of all products, and are very proud of our record in doing so. However, as we are a company engaged in what Mother Nature provides, we do sometimes experience shortages and crop failures beyond our control. If, for any reason, we are required to backorder any portion of your order, rest assured we will keep you apprised of updated shipping information and/or any other options that may satisfy your needs and wishes.
Product Description
Sunflower Seeds - Mongolian Giant
Enormous sunflower variety, with vibrant yellow flower heads that can get as large as 18” across and heights up to 14’! Once the blooms fade, you and the birds will be rewarded with enough seeds to snack on all year!
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Fast Facts
Name: Sunflower - Mongolian Giant Botanical Name: Helianthus annuus Life Cycle: Annual Color: Yellow Bloom Season: Summer/Fall Height: Up to 14 Feet, Blooms 18 Inches Across Light Requirement: Sun Sowing Method: Direct Sow Seeds per Pound: Approx 4,500 Hardiness Zones: All Ships: Year Around -
Planting Video
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Seed Coverage
Amount Recommended Coverage Packet Up to 8 Sq. Ft Ounce Package Up to 25 Sq. Ft 1/4 Pound Package Up to 100 Sq. Ft 1 Pound Sack Up to 400 Sq. Ft 5 Pound Sack Up to 2,000 Sq. Ft
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Sunflower Seeds - Mongolian Giant Helianthus annuus
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