Grindelia is a hardy herbaceous perennial plant valued for its upright growth and adaptability to dry conditions. It grows well in sunny locations with well drained soil and is commonly used in naturalized planting, borders, and landscape gardens. The plant adapts to warm temperate climates and requires moderate watering during establishment.
Features
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Upright herbaceous perennial growth habit
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Suitable for borders and naturalized planting
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Adapted to sunny, dry climate conditions
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Prefers well drained soil and moderate moisture
Specifications
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Scientific Name: Grindelia robusta
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Common Name (US): Gumweed Seeds
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Seed Type / Variety: Herbaceous perennial species
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Growth Habit: Upright perennial herb
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USDA Zones: 5 to 10
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Planting Season: Spring
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Growing Season: Warm season
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Sowing Season: March to May
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Germination: 14 to 28 days in warm soil
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Sunlight: Full sun
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Soil: Well drained sandy or loamy soil
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Watering: Low to moderate
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Mature Size: 60 to 120 cm height
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Plant Spacing: 30 to 45 cm