Petunia atkinsiana
Petunia atkinsiana · Solanaceae
The gardener's calendar
Ideal time to plant petunia atkinsiana: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Family
- Solanaceae
- Type
- Annual or tender perennial herbaceous plant
- Flowering
- From spring to autumn (May to October)
- Mature size
- 20 to 80 cm tall depending on variety, 30 to 60 cm spread
- Foliage
- Deciduous, medium green, slightly sticky and fuzzy
- Growth
- Fast
- Hardiness
- Not frost-hardy (grow as an annual in temperate regions)
- Origin
- South America (Argentina, Brazil)
Care
Sunlight
Petunia requires a sunny location to flower abundantly: at least 6 hours of direct sun per day. It tolerates light shade but produces fewer flowers. Avoid windy spots that damage the delicate petals.
Watering
Water regularly to keep the soil moist but not saturated. During hot periods, daily watering may be necessary for potted plants. Water at the base of the plant preferably, avoiding the foliage which dislikes stagnant moisture.
Soil
Prefer well-draining potting soil or garden soil that is slightly fertile. Enrich with some mature compost at planting time. Good drainage is essential to prevent root rot.
Fertiliser
Apply balanced or slightly nitrogen-rich fertiliser every 2 to 3 weeks during flowering. Excess nitrogen promotes foliage at the expense of flowers. A boost of potassium improves flower colour.
Pruning and pinching
Regularly pinch young shoots to encourage branching and denser flowering. Remove spent flowers to extend blooming. Prune overly long stems in late summer if the plant becomes leggy.
Diseases and pests
Watch for aphids and whiteflies, particularly indoors. Powdery mildew can appear in warm, humid conditions. Avoid watering the foliage which promotes leaf spots. Ensure good air circulation around plants.
Did you know?
Petunia originates from Brazil and its name derives from the Tupi word 'petum' meaning 'tobacco', referring to its botanical kinship with this plant. Introduced to Europe in the 19th century, it became an iconic bedding plant in Victorian gardens and remains one of the world's most popular annuals for its generous flowering and countless colour varieties.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
Add this plant to my garden →Plants from the same family
- TomatoSolanum lycopersicum
- Sweet pepperCapsicum annuum
- EggplantSolanum melongena
- Cape gooseberryPhysalis peruviana
- Night jessamineCestrum nocturnum
- Potato vineSolanum laxum
Tips generated and checked by Viridia — adapt them to your local climate.