Pink and red zinnia flowers among green leaves.
Photo: Екатерина Борисова · CC BY-SA 4.0 · Wikimedia Commons From the 4896×3672 original, scaled to 640×480 and re-encoded as WebP (quality 70); metadata removed.

Zinnia

Zinnia elegans

About it

Kind
Flowers · Annual
Family
Asteraceae
Mature size
to 30 in × 1 ft
Blooms
Jun–Oct
Hardiness zones
Zones 2–11
Sun
Full sun
Spacing
12 in apart, rows 18 in
Soil depth in a pot
At least 8 in
Soil pH
5.5–7.5
Water
About every 7 days

When to plant

Ready
About 60 days

Based on your last frost date. Outside the US, check local advice.

Planting partners

No cited companion planting notes for Zinnia yet.

Safety for pets and children

  • Cats Listed as non-toxic to cats (NC State Extension)
  • Dogs Listed as non-toxic to dogs (NC State Extension)
  • Horses Listed as non-toxic to horses (NC State Extension)
  • Children No information in our sources

Read from NC State Extension ↗.

"No information" means our sources do not say, not that the plant is harmless. A non-toxic listing is not a reason to let anyone eat a plant.

Pests and diseases

No pest or disease notes for Zinnia yet.

Check the label and your local extension service before using any product.

Where this comes from

  • family npgsweb.ars-grin.gov ↗ GRIN page: Zinnia elegans Jacq.
  • Most facts NC State Extension ↗ Backfilled by 0041. Pre-0041 rows recorded one source for the whole row; per-field attribution was never captured and is not invented here.
  • toxicity NC State Extension ↗ non_toxic for cat, dog, horse from its "non-toxic for" tags.
  • water frequency days UMN Extension ↗ UMN "Zinnia": "Only water when the top 1 to 2 inches of soil are dry" and zinnias "can tolerate drier soil better than overly wet soil, and too much water can cause fungal diseases." The page publishes no interval; seven days is how often the app asks the gardener to make that check, not a published figure.

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