Zinnia
Asteraceae HERB OUTDOOR Placement

Zinnia

Zinnia elegans

Identified By Unknown Guest

Zinnias are popular garden plants with bright, daisy-like flower heads that come in a wide variety of vivid colors. They are extremely easy to grow, blooming profusely from summer until the first frost.

Also known as: Youth-and-old-age Common zinnia

Growth & Dimensions

Height 20 - 90 cm
Width 15 - 45 cm
Growth Rate Fast
Care Level Easy
Lifespan Annual

Ideal Environment

Temperature 15°C - 35°C
Sunlight Hours 6 - 8 hrs/day
Sun Exposure Full sun
Soil pH 5.5 - 7.5
Watering Interval 3 - 7 days
Humidity 30.00% - 60.00%
USDA Zone 2 - 11

Temperate and Tropical Climates

Climate: Thrives in warm, sunny climates with moderate rainfall.

Soils: Loam Clay loam Sandy loam
Annual Rainfall: 400 - 1200 mm

Native Regions

Mexico
Central America, South America

Care Guide

Watering

Water zinnias at the base of the plant to keep foliage dry and prevent powdery mildew. Water deeply once a week, or more often during prolonged dry spells.

Sunlight

Plant zinnias in a location that receives full sun (at least 6 hours of direct sunlight daily) for optimal flowering and disease prevention.

Soil and Fertilizer

Grow in well-draining, humus-rich soil. Avoid heavy fertilization, as too much nitrogen will result in lush foliage with fewer blooms.

Deadheading

Regularly remove spent flowers (deadheading) to encourage continuous blooming throughout the season.

Propagation Methods

Seed

Sow seeds directly in the garden after the last spring frost. Cover lightly with soil (about 6 mm deep), and keep moist until germination occurs within 7 to 10 days.

Common Diseases & Pests

Powdery Mildew

Fungal
Symptoms:

White powdery spots appear on the leaves and stems, eventually covering the entire foliage.

Treatment:

Apply a fungicidal spray such as neem oil or sulfur-based fungicides at the first sign of infection.

Prevention:

Ensure proper spacing between plants for good air circulation, water at the base, and plant in full sun.

Properties & Benefits

Uses & Health Benefits

Pollinator Attraction

Zinnias are excellent for attracting butterflies, bees, and other beneficial pollinators to the garden.

Key Nutrients / Compounds

Ornamental Value rich in High aesthetic concentration

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