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Product Description
Product Description:
Rhinanthus Seeds Yellow Rattle Plant Seeds for Gardening and Wildflower Meadows
Grow a beautiful and ecologically balanced garden with Rhinanthus Seeds, commonly known as Yellow Rattle Seeds. This semi-parasitic wildflower is prized by meadow gardeners for its ability to naturally reduce grass vigor, allowing wildflowers to flourish. Its cheerful yellow blooms attract bees, butterflies, and beneficial insects, making it an essential seed for sustainable and pollinator-friendly gardens.
Key Features:
Promotes biodiversity by reducing grass competition naturally
Produces bright yellow flowers with attractive seed pods
Excellent choice for wildflower meadows and natural lawns
Attracts pollinators such as bees and butterflies
Non-GMO, high-quality seeds suitable for all soil types
Easy to grow and maintain in temperate climates
Specifications:
Common Name (US): Yellow Rattle
Scientific Name: Rhinanthus minor
Plant Type: Annual wildflower
Growth Habit: Erect and slender
Height: 1020 inches
Flower Color: Bright yellow with green bracts
Bloom Season: Late spring to early summer
Sun Exposure: Full sun to partial shade
Soil Type: Well-drained, moderately fertile soil
Watering Needs: Moderate until established, then low
USDA Hardiness Zones: 39
Seed Type: Non-GMO
Organic: Yes
Germination Time: 24 weeks after winter chill
Cold Stratification: Recommended for better germination
Spacing Between Plants: 610 inches
Maintenance Level: Low
Attracts: Bees, butterflies, and other pollinators
Uses: Meadows, natural lawns, eco-friendly landscaping
Planting Guide:
Soil Preparation: Choose an area with low to medium fertility soil. Lightly rake the soil to create a fine surface for sowing.
Sowing: Rhinanthus seeds need a cold period to germinate. Sow in late autumn so seeds can naturally stratify over winter. Press gently into the soil surface without covering deeply.
Watering: Keep soil moist during germination. Once established, Rhinanthus requires minimal watering.
Growth Tips: Rhinanthus grows best alongside native meadow grasses and wildflowers. Avoid rich soil as it may reduce flowering.
Bloom Time: Flowers appear in late spring and last through early summer, followed by decorative seed pods that rattle when dry.

Life Cycle
Annual
Planting Season
Spring–Early Summer
Growth Habit
Mounding Spreading
Flavor Profile
Not
Plant Characteristics
Deep Black Blooms
Use
Borders, Containers
Growing Conditions
Full Sun, Loamy Soil
Harvest Advantages
Continuous Bloom
Plant Resistance
Heat Tolerant
Seed Names
Black Velvet Petunia
Seed Type
Hybrid Open-Pollinated
Light Requirement
Full Sun
Planting Depth
Surface Sow
Sowing Method
Indoor or Direct
Plant Spacing
10–12 Inches
Days to Maturity
80–90 Days
Soil Preparation
No Soaking Needed
Hardiness Zones
9–11
Water Needs
Moderate
Planting Season
Spring
Seed Count
Recommended Coverage
100
Up to 50 sq ft
500
Up to 250 sq ft
1000
Up to 500 sq ft