Sunflower Flower Seeds Packet

$4.95

Quick Seed Overview
  • Plant Type: Annual
  • Genus: Helianthus
  • Species: Annus
  • Plant Height/Width: 60-72"
  • Exposure: Full Sun
  • Difficulty: Easy
  • Attributes: Attract Pollinators
Satisfaction Guarantee

We stand by the quality of our flower seed packets! With high germination rates and vibrant blooms, your garden is sure to flourish. If you're not completely satisfied, we’ll replace or refund—guaranteed!

Why Shido Seeds Are the Best

Our flower and vegetable seeds are beautifully packaged little packets of magic. Guaranteed to turn your garden into the envy of the neighborhood. Get your hands dirty and let nature simply do its thing.

Vac Seal for 10 Years

Our vacuum-sealed seeds stay fresher, longer—locking in life so your garden thrives on cue!

High Rate Germination

Our seeds don’t just sprout—they overachieve! With a high germination rate, success is guaranteed.

Pretty Packets

Our seed packets are so stunning, you’ll want to frame them—planting the seeds is a bonus.

How to Plant Sunflowers from Seed

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Preparing the Site

Sunflowers are best grown directly from seed, as they do not transplant well due to their deep taproots; but sowing indoors and then transplanting the first crop outdoors can be a successful way to get first-early sunflowers. the key is to choose a sunny location with well-drained soil when starting.

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When to Plant Seeds

  • Outdoors (recommended): Sow seeds after the danger of frost has passed and soil temperature is at least 60°F.
  • Successive Planting: To extend bloom time, plant seeds every 2-3 weeks through mid-summer.
Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 3.

Seed Preparation

  • No special preparation is needed, but soaking seeds in water for a few hours before planting can speed up germination.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 4.

Sowing Seeds Outdoors

  1. Loosen the soil to a depth of 12 inches.
  2. Sow seeds 1 inch deep and 6-12 inches apart, depending on variety size.
  3. Water thoroughly and keep the soil moist until seedlings emerge (7-10 days).
Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 4.

Transplanting Seedlings

  • If started indoors, harden off seedlings before transplanting.
  • Space them according to the mature plant size (1-3 feet apart for large varieties).
Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 4.

Preparing the Site

Sunflowers are best grown directly from seed, as they do not transplant well due to their deep taproots; but sowing indoors and then transplanting the first crop outdoors can be a successful way to get first-early sunflowers. the key is to choose a sunny location with well-drained soil when starting.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 2.

When to Plant Seeds

  • Outdoors (recommended): Sow seeds after the danger of frost has passed and soil temperature is at least 60°F.
  • Successive Planting: To extend bloom time, plant seeds every 2-3 weeks through mid-summer.
Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 3.

Seed Preparation

  • No special preparation is needed, but soaking seeds in water for a few hours before planting can speed up germination.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 4.

Sowing Seeds Outdoors

  1. Loosen the soil to a depth of 12 inches.
  2. Sow seeds 1 inch deep and 6-12 inches apart, depending on variety size.
  3. Water thoroughly and keep the soil moist until seedlings emerge (7-10 days).
Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 4.

Transplanting Seedlings

  • If started indoors, harden off seedlings before transplanting.
  • Space them according to the mature plant size (1-3 feet apart for large varieties).

Pro Tip

Sunflower seeds are ready for harvesting when the back of the flower head turns yellow to brown, and either the seeds appear plump and firm or the petals dry out and fall off. To harvest, cut the flower head with 6 inches of stem attached and hang it upside down in a dry, ventilated area. Once the head is fully dry, rub the seeds out by hand and store them in an airtight container in a cool, dry place.

Getting to know your Sunflowers

Sunflowers are annual plants that complete their lifecycle in one growing season. They can grow anywhere from 1 to 12 feet tall, depending on the variety. They have thick, sturdy stems that support their large flower heads. Leaves are broad and heart-shaped, with a rough texture. Sunflowers exhibit heliotropism, meaning young plants turn to face the sun. Sunflowers bloom in late summer and early fall. Seeds are typically harvested in late summer or early autumn when the flower heads mature.

What it's used for

1. Ornamental Gardening:

  • Sunflowers make a striking addition to gardens and landscapes.
  • They are commonly used as border plants or focal points in garden beds.

2. Edible Seeds & Oil Production:

  • Sunflower seeds are nutritious and edible, commonly roasted for snacking.
  • Seeds can be used for sunflower oil production, a popular cooking oil.
  • They are a great source of protein, fiber, and healthy fats.

3. Pollinator Attraction:

  • Sunflowers attract bees, butterflies, and other pollinators, enhancing biodiversity.

4. Livestock & Bird Feed:

  • Sunflower seeds are commonly used in bird feeders and livestock feed.

5. Soil Improvement & Phytoremediation:

  • Sunflowers have been used in phytoremediation to remove toxins from contaminated soil.
Growth Requirements

Light:

  • Sunflowers require full sun (at least 6-8 hours of direct sunlight daily).

Soil:

  • Prefer well-draining soil with moderate fertility.
  • Grow best in soil with a neutral to slightly acidic pH (6.0-7.5).

Watering:

  • Require regular watering during germination and early growth.
  • Once established, they are drought-tolerant but benefit from occasional deep watering.

Temperature & Climate:

  • Thrive in warm temperatures (70-85°F).
  • Sensitive to frost; plant after the last frost date.

Fertilization:

  • Apply a balanced fertilizer (10-10-10) at planting.
  • Avoid excessive nitrogen, which promotes foliage growth at the expense of flowers.
Maintenance

Mulching:

  • Apply mulch to retain moisture and suppress weeds.
  • Helps regulate soil temperature and prevent rapid drying.

Supporting Tall Varieties:

  • Large sunflowers may require staking or support to prevent bending.
  • Plant against a fence or use garden stakes for extra stability.

Deadheading & Pruning:

  • Deadhead spent flowers to encourage continuous blooming.
  • If growing for seeds, allow flower heads to mature naturally.

4. Protecting from Wildlife:

  • Birds and squirrels may eat developing seeds; cover heads with mesh bags if necessary.
Pests and Diseases

Pests:

  • Aphids: Cause leaf curling; use insecticidal soap.
  • Cutworms: Damage young stems; protect seedlings with collars.
  • Sunflower Moths: Lay eggs in flower heads, damaging seeds.

Diseases:

  • Powdery Mildew: White powdery coating on leaves; treat with fungicides.
  • Downy Mildew: Yellowing and wilting; improve air circulation.
  • Rust: Causes brown spots; remove infected leaves.

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