Water
Water consistently to keep the soil evenly moist, but not waterlogged. Allow the top 2-3 cm of soil to dry out between waterings. Reduce watering in cooler months.
Good drainage is crucial to prevent root rot, especially in containers.
Also known as Amore (queen Of Hearts) · Amore Petunia · Garden Petunia
Petunia axillaris, the large white petunia, is a wild species native to South America, featuring fragrant, white flowers that bloom at night.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Prefers at least 6-8 hours of direct sunlight daily for best flowering.
Moderate
50% intensity
Keep soil consistently moist but not waterlogged. Allow top layer to dry slightly between waterings.
Well-drained
50% intensity
Moderate
50% intensity
Prefers temperatures between 15-25°C. Avoid frost.
Outdoor
50% intensity
Regular Feeding
75% intensity
Feed with a balanced liquid fertilizer every 2-4 weeks during the growing season.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
| Edible | No |
None
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water consistently to keep the soil evenly moist, but not waterlogged. Allow the top 2-3 cm of soil to dry out between waterings. Reduce watering in cooler months.
Good drainage is crucial to prevent root rot, especially in containers.
Deadhead spent flowers regularly to encourage more blooms and maintain a tidy appearance. Pinch back young plants to promote bushier growth.
Light pruning can be done in late winter or early spring to shape the plant and remove any dead or leggy stems.
Propagate from seed sown indoors in late winter or early spring. Seeds require light to germinate and should be kept moist.
Cuttings can also be taken in summer, inserted into moist, well-draining compost, and kept in a warm, humid environment.
Repot annually or when the plant becomes root-bound, typically in spring. Use a well-draining potting mix. Choose a pot that is slightly larger than the current one.
Ensure containers have drainage holes to prevent water accumulation.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Large White Petunia (Petunia axillaris)
Where Large White Petunia (Petunia axillaris) is found

Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Solanales |
| Family | Solanaceae |
| Genus | Petunia |
| Species | Petunia axillaris |
Similar in genus Petunia
Answers based on plant encyclopedia data