When you want loads of colorful blooms all summer long, it’s tough to beat these easy-care annuals.

One of the most popular annuals, petunias add mountains of color to garden beds and containers.

Most petunias available nowadays are hybrids, but new varieties come out every year in novel designs.

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Credit: Justin Hancock

The blossom size selection is quite diverse as well.

Plant petunias in closely spaced groups or drifts for the best visual effect.

Trailing petunias look best whenspilling over wallsor containers and hanging baskets.

Cascadias Bicolor Purple petunia

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Place the plant in the hole and backfill with a mixture of soil and compost.

Gently tamp down the soil around the base and water the plants immediately.

The spacing depends on the variety and location.

Cascadias Cherry Spark petunia

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Trailing petunias should be spaced at least 18 inches apart.

The compact milliflora petunias can be planted much denser, about 4 to 6 inches apart.

Petunia Care Tips

Light

It is essential toplant petunias in full sun.

Cascadias Sunray petunia

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In shady locations, the soil stays wet longer after a rainfall, increasing the likelihood of rot.

Soil and Water

Petunias are unfussy about soil as long as they are plantedin well-drained soils.

Poor drainage, however, can lead to rot and fungal issues.

Double Wave Blue Velvet petunia

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Container plants need daily watering.

In hot summer weather, petunias inhanging basketsmight need to be watered twice daily.

Temperature and Humidity

Petunias are heat-loving plants.

Dreams Fuchsia petunia

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Meanwhile, most new types are self-cleaning, so deadheading is unnecessary.

Potting and Repotting

Plantpetunias in potsfilled with well-draining potting mix and large drainage holes.

Unglazed ceramic and terra-cotta pots are ideal because they let excess moisture evaporate.

Easy Wave Blue petunia

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They will need more regular watering than petunias growing in the ground.

Repotting is usually not necessary as petunias conclude their life cycle with the first fall frosts.

Keep an eye out for whiteflies and aphids, as they are the most likely to show up.

Easy Wave Coral Reef petunia

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How to Propagate Petunias

Most petunias are hybrids that do not come true from seed.

Some nurseries offer petunia seeds though the selection is much more limited than when buying plants.

Here’s how:

After 2 to 3 weeks, your cutting should begin to show new growth.

Easy Wave Mystic Pink petunia

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Types of Petunia

Petunias have always been known for their vast selection of colors and patterns.

The options seem almost endless.

It has a trailing habit.

Easy Wave Pink petunia

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It has a trailing habit, making it good for hanging baskets.

‘Dreams Fuchsia’ Petunia

Petunia’Dreams Fuchsia' is a large-flowering petunia bearing many bold fuchsia-pink flowersall summer.

It grows 15 inches tall and 12 inches wide.

Famous Lilac Picotee petunia

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It grows 12 inches tall and 40 inches wide.

It grows 12 inches tall and 40 inches wide.

It grows 12 inches tall and 40 inches wide.

Fantasy Pink Morn petunia

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It grows 12 inches tall and 40 inches wide.

It grows 1 foot tall and 2 feet wide.

It grows 15 inches tall and 18 inches wide.

Madness Yellow petunia

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This award-winning variety grows 18 inches tall and wide.

This award-winning variety grows 6 inches tall and 3 feet wide.

It grows to 1 foot tall and wide.

Merlin Blue Morn petunia

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‘Picnic White’ Petunia

Petunia’Picnic White' is a mini petunia with an abundance of smallwhite flowers.

It grows 1 foot tall and 2 feet wide.

‘Pirouette Rose’ Petunia

Petunia’Pirouette Rose' bears frilly, double, pink-and-white flowers on 1-foot plants.

Merlin Rose petunia

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It’s not as heat-tolerant as many other petunia varieties.

It grows 10 inches tall and 2 feet wide.

‘Supertunia Bordeaux’ Petunia

‘Supertunia Bordeaux’Petuniashows off soft pink flowers with rich purple-red veins.

Opera Supreme Pink Morn petunia

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‘Supertunia Citrus’ Petunia

‘Supertunia Citrus’Petuniais a vigorous selection with soft yellow flowers veined in rich yellow.

It’s good for hanging baskets and can trail to 1 foot.

It grows 10 inches tall and 4 feet wide.

Orchid Daddy petunia

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‘Supertunia Mini Blue’ Petunia

‘Supertunia Mini Blue’Petuniagraces gardens with small, dark blue-purple blooms.

It grows 8 inches tall and can spread to 6 feet.

The vigorous selection grows 10 inches tall and 4 feet wide.

Picnic White petunia

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It grows 14 inches tall and wide.

‘Wild’ Petunia

Petunia integrifoliais native to areas of Mexico and bears magenta flowers all summer long.

It scrambles to 2 feet and often self-seeds.

Pirouette Rose double petunia

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It’s also a great edging plant because of its tidy, compact habit.

It halts bloom in summer in warmer areas.

Heliotrope

Even without its fabulous scent,heliotrope would be widely grownin the garden.

Supertunia Bermuda Beach petunia

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Heliotrope thrives in a spot with full sun and moist, well-drained soil.

It is also a great container plant.

Salvia, Sage

There are few gardens that don’t haveat least one salviagrowing in them.

Supertunia Bordeaux petunia

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Most salvias don’t like cool weather, so plant them outdoors after all danger of frost has passed.

Tiny Corner Garden Plan

Banish front-yard blahs by installing this easy corner-fence garden of fast-growing flowers.

Modern varieties require very little maintenance and aren’t too picky about growing conditions.

Supertunia Citrus petunia

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In zones 10 and 11, petunias can overwinter outdoors and come back the next year.

Petunias aren’t dangerous to animals, so they’re safe to plant in gardens where pets play.

Supertunia Lavender Skies petunia

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Supertunia Mini Blue petunia

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Supertunia Pretty Much Picasso petunia

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Supertunia Raspberry Blast petunia

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Supertunia Royal Velvet petunia

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Sweet Sunshine Compact Lime petunia

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Sweet Sunshine Compact Nostalgia petunia

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Vista Silverberry petunia

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Wave Blue petunia

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Wave Misty Lilac petunia

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purple wave petunia blossoms

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Wild petunia

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Sweet alyssum Lobularia ‘Blushing Princess’

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Heliotrope flowers

Credit: Helen Norman

a group of purple salvia in bloom

flower garden bench

Credit: Janet Mesic Mackie

moss rose corner garden

Credit: Marty Baldwin