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Flower (annual)

Zinnia

Zinnia elegans

Zinnia

One of the most reliable cut-and-come-again annuals, let down almost only by powdery mildew from overhead watering in humid weather.

LightFull sun, 6+ hours
WaterModerate; water at the base to keep foliage dry
Spacing15-45 cm depending on variety
ZonesAnnual everywhere; frost-tender
HarvestN/A — cut flowers repeatedly to extend bloom
DifficultyEasy

Cutting more means blooming more

Zinnias are determined to set seed. Cutting stems for a vase — or deadheading spent blooms — redirects energy into new flower buds rather than seed production, and a well-cut patch will out-bloom an untouched one.

Keep foliage dry to avoid mildew

Powdery mildew is the main recurring problem, especially late in the season. Water at soil level rather than overhead, and space plants for airflow rather than crowding them for a fuller look early on.

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