Annual · Solanaceae family
Petunia x atkinsiana
Petunia × atkinsiana
In short a 10-second read
Petunia x atkinsiana (annual) grows to 0.15–0.45 m tall and 0.3–0.9 m wide when mature. It grows best in full sun to part shade, in average soil. It flowers in May–October; the flowers are white, yellow, orange, pink, red, purple or blue.
× spread 0.3–0.9 m
Where to plant
Sun and soil.
It grows best in full sun to part shade, in average soil.
Sun
Tolerates several positions — choose to suit the rest of the garden.
Soil and water
average · watering: moderate
Soil: humus-rich, loamy
How much space it takes
Mature size.
The mature plant next to a person (175 cm).
Next to a person
The final size depends on the cultivar and the spot — we give the range from smallest to largest.
Calendar
What to do and when.
Months for Central Europe. The line shows the current month.
The year at a glance
Flowers
May–October · white, yellow, orange, pink, red, purple or blue
Pruning
deadhead spent flowers (June–September); cut back by a third (July–August)
Planting
sow indoors: February–March
Winter protection
does not overwinter
What to combine it with
Same needs, different flowering.
They share the same sun and soil and flower in other months — so the bed flowers for longer.
Frequently asked
Quick answers.
When does Petunia x atkinsiana flower?
In May–October; the flowers are white, yellow, orange, pink, red, purple or blue.
Does Petunia x atkinsiana tolerate shade?
It tolerates part shade (3–6 hours of sun), but not full shade.
How much space does Petunia x atkinsiana need?
At maturity 0.3–0.9 m wide and 0.15–0.45 m tall; recommended spacing 30 cm.
Where the data comes from
We compared the data in 14 expert sources. Last checked 17 October 2026.
Show sources (14)
- GBIF Backbone Taxonomy — Petunia × atkinsiana
- GBIF Occurrence Search API — Petunia × atkinsiana
- GBIF Vernacular Names API — Petunia × atkinsiana
- Wikidata (CC0) — Petunia × atkinsiana
- Missouri Botanical Garden Plant Finder — Petunia × atkinsiana
- NC State Extension Gardener Plant Toolbox — petunia x hybrida
- RHS - How to grow annuals and biennials
- Invasive plant lists — this species is not on them: EASIN, EU, Slovakia, Czechia, Germany, Poland, Denmark
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