Dahlia
Dahlia spp.
About it
- Kind
- Flowers · Perennial
- Family
- Asteraceae
- Mature size
- to 4 ft × 2 ft
- Blooms
- Jul–Oct
- Hardiness zones
- Zones 2–11
- Sun
- Full sun
- Spacing
- 18 in apart, rows 30 in
- Soil depth in a pot
- At least 12 in
- Soil pH
- 6.5–7
- Water
- About every 7 days
When to plant
- Ready
- About 90 days
Based on your last frost date. Outside the US, check local advice.
Planting partners
No cited companion planting notes for Dahlia yet.
Safety for pets and children
- Cats Listed as a problem for cats (NC State Extension) — Low severity; in the leaves; toxic principle: Phototoxic polyacetylene compounds
- Dogs Listed as a problem for dogs (NC State Extension) — Low severity; in the leaves; toxic principle: Phototoxic polyacetylene compounds
- Horses Listed as a problem for horses (NC State Extension) — Low severity; in the leaves; toxic principle: Phototoxic polyacetylene compounds
- Children No information in our sources
If a pet or child eats part of this plant, call your vet or poison control.
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 Dahlia yet.
Check the label and your local extension service before using any product.
Where this comes from
- family npgsweb.ars-grin.gov ↗ GRIN genus page for Dahlia; the catalogue row names the genus, not one species
- 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 ↗ toxic for cat, dog, horse from the page's "Problem for" listing. Severity, parts and principle are the page's poison characteristics for the whole plant.
- water frequency days fieldreport.caes.uga.edu ↗ UGA Extension Circular 576 "Dahlias": "Give the plants a good soaking once a week." and "Light surface applications will not do the job." It adds that without mulch "watering twice a week during dry periods will be desirable."