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Product Description
Grindelia Flower Seeds – Seasonal Bloomer, Heirloom & GMO Free Seeds for Home Garden
Add bright, cheerful color to your garden with Grindelia Flower seeds. This heirloom variety is a seasonal bloomer, producing vibrant yellow flowers that are perfect for borders, cottage gardens, and pollinator-friendly plantings. GMO-free and easy to grow, Grindelia is ideal for gardeners seeking low-maintenance, long-lasting plants that bring lively color and interest to home gardens.
Features & Specifications:
Variety: Grindelia
Type: Heirloom, Non-GMO
Blooming Season: Summer to early autumn
Height: 18–36 inches (45–90 cm)
Sun Requirements: Full sun
Soil: Well-drained, fertile soil
Planting & Sowing Instructions:
Sowing Time: Sow seeds indoors 6–8 weeks before the last frost or directly outdoors after frost risk.
Depth: Sow seeds lightly ¼ inch (0.5–1 cm) deep in seed-starting mix or garden soil.
Spacing: Thin seedlings to 12–18 inches (30–45 cm) apart for optimal growth.
Watering: Keep soil evenly moist until seedlings establish; once established, moderately drought-tolerant.
Care: Provide full sun and well-drained soil. Deadhead spent flowers to encourage continuous blooming and maintain plant health.

Life Cycle
Perennial flowering plant
Planting Season
Spring to summer
Growth Habit
Upright branching growth
Flavor Profile
Mild herbal aroma
Plant Characteristics
Yellow daisy blooms
Use
Wildflower garden plant
Growing Conditions
Warm sunny climate
Harvest Advantages
Seasonal bloom display
Plant Resistance
Strong drought tolerance
Scientific Name: Grindelia robusta
Seed Names
Grindelia
Seed Type
Open pollinated
Grindelia Flower Seeds grow into hardy plants producing bright yellow daisy-like blooms. These heirloom, GMO-free seeds are valued for their resilience and seasonal flowering, making them ideal for wildflower gardens and sunny home landscapes.
Light Requirement
Full sun
Planting Depth
¼ inch deep
Sowing Method
Direct soil sowing
Plant Spacing
12–18 inches
Days to Maturity
70–90 days
Soil Preparation
No pre-treatment
Hardiness Zones
USDA zones 5–10
Water Needs
Low watering
Planting Season
Spring season
Seed Count
Recommended Coverage
100
Up to 15 sq ft
500
Up to 75 sq ft
1000
Up to 150 sq ft