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Large white petunia (Petunia axillaris)-i
Large white petunia (Petunia axillaris)-i
Large white petunia (Petunia axillaris)-i
Large white petunia (Petunia axillaris)-i
Large white petunia (Petunia axillaris)-i
Large white petunia (Petunia axillaris)-i
Large white petunia (Petunia axillaris)-i
Large white petunia (Petunia axillaris)-i
Large white petunia (Petunia axillaris)-i
Large white petunia (Petunia axillaris)-i
Large white petunia (Petunia axillaris)-i
Large white petunia (Petunia axillaris)-i

Large white petunia

Scientific name
Petunia axillaris

Basic Information

Solanaceae Family Petunia Genus Large white petunia Species
Solanaceae > Petunia > Petunia axillaris
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  • Annual
  • Flower
Height
30cm ~ 45cm
Flower Color
Leaf Color
Anthesis
summer
Sunlight Exposure
Full Sun
Hardiness Zones
9
Cold resistance
Fair
Heat resistance
Good
Habitat of origin
Argentina, Brazil, Uruguay
Growth Rate
Normal

What is Large white petunia (Petunia axillaris)?

What is Large white petunia (Petunia axillaris)

Large white petunia, also known as Petunia axillaris, is a species of flowering plant native to South America. It is a very popular plant in gardens and landscapes. This perennial herbaceous plant is considered ornamental due to its white flowers that symbolize innocence. They can be planted in flower beds, containers, and gardens everywhere. Petunia axillaris is also used in traditional medicine for its medicinal properties. Although the plant produces small fruits, these are not typically consumed. Petunias require well-drained, fertile soil with ample sunlight and regular watering. There are various varieties with unique shapes, sizes, and fragrances. Petunia axillaris is relatively easy to grow and does not have major pests and diseases.

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Flower meaning

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Calendar of Large white petunia (Petunia axillaris)

Calendar

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How to grow Large white petunia (Petunia axillaris)

Watering

For the Large white petunia, watering frequency should be every 2-3 days during the growing season. In the wintertime, reduce watering to once every 7-10 days as the plant enters dormancy. Check soil moisture by inserting a finger 1-2 inches into the soil; water when the top layer feels dry. Water in the morning to allow excess moisture to evaporate during the day, reducing the risk of fungal diseases

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Soil and Fertilizer

Large white petunia requires well-draining soil with a pH level of 6.0 to 7.0. Use a balanced fertilizer with equal parts nitrogen, phosphorus, and potassium. Apply fertilizer every 2-4 weeks during the growing season, starting in early spring. Use slow-release fertilizers to provide nutrients gradually. Avoid over-fertilizing as excess can lead to more foliage growth at the expense of flowers. Check that the soil remains loose and fertile. Water deeply after fertilizing to help nutrients reach the root zone.

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Sunlight and Place

Large white petunias thrive with ample sunlight, requiring at least 6 hours of sunshine daily. They tolerate heat but may struggle in freezing conditions, preferring temperatures over 60°F. Provide ample water and mulch in summer to retain moisture. In winter, protect from frost by moving indoors or draping with frost cloth. These plants benefit from consistent light to support healthy growth and abundant blooming. Ideal temperatures range between 65-75°F. Avoid placing in shaded areas as it can cause spindly growth and fewer flowers. Ensure they receive sufficient sunlight throughout the day for optimal growth.

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Advanced Information of Large white petunia (Petunia axillaris)

Pruning

Large white petunia benefits from periodic grooming for new shoot and compact form. Cutting spent blooms, promote flowering, and stop tall growth require grooming. After every bloom cycle or overgrown is best timing for grooming. Cut back stems above a leaf cluster or node to encourage branching. Thorough watering and exposure to sunlight after grooming are crucial for promoting new shoots. Avoid over-grooming to prevent stressing the plant. Regular grooming helps Large white petunia thrive and produce more blooms.

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Planting and Harvest

Large white petunia thrives best when potted rather than planted in-ground due to its preference for well-draining soil and controlled environment. To pot a Large white petunia, a container with drainage holes is chosen, it is filled with quality pot mix, and the petunia is planted at the same depth as it was in its nursery container. After thorough watering when planting, the pot is put in a location with full sun exposure. When repotting again, a slightly bigger pot is chosen to fit the plant's growth, and the potting mix is refreshed. To avoid mishaping, flowers are regularly removed after fading and stems are pruned to encourage bushy growth.

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Propagation

Large white petunia can be propagated through seeds, cuttings, and division. Seed planting indoors should commence in early spring, burying them just beneath the soil surface and maintaining consistent moisture until plant development emerges. Stem cuttings should be taken with basal ends dipped in rooting gel and placed in well-aerated soil until roots develop. Division involves separating the plant into smaller sections, each with sufficient roots and leaves attached. To enhance propagation success, use a combination of these methods to maximize the number of new plants. Collect seeds after the seed pods have dried and turned brown, take cuttings that show roots, and divide plants in either spring or autumn.

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Pests and Diseases

NO DATA

Habitat of Large white petunia (Petunia axillaris)

Habitat

Toxicity of Large white petunia (Petunia axillaris)

Health Benefits

edible
Inedible
Toxic
No toxicity

NO DATA

Toxic for dogs and cats

NO DATA