Petunia companion plants provide extra beauty and more value to your garden, so you may want to share the space with these plants.

Petunia Companion Plants

Your petunias will gain a lot from the companionship, from color matching and complementation to other benefits, such as more nutrients in the soil.

If you have been searching for the best and most beautiful plant to grow with your petunias, continue reading this article.

8 Beautiful Petunia Companion Plants You Can Grow This Season

1. Lantana

Vibrant Lantana Blooms

Uses and Benefits
  • Matches the petunia colors
  • Attracts butterflies
Bloom
  • Starts: Late-spring
  • Ends: Frost
Care Requirements
  • Soil: Organic, slightly acidic
  • Temperature: 55-80 degrees Fahrenheit
  • Light: Eight or more hours of sunlight
Common Pests
  • Lantana lace bugs
  • Powdery mildew
  • Whiteflies

Using lantanas for companion planting with petunias is an awesome idea. Let the yellow, pink and orange flowers of lantanas blend with the various colors of petunias.

Both plants produce very beautiful flowers and share similar care requirements, so they can grow together and beautify each other and your garden. You can grow both petunias and lantanas in pots or plain garden soil.

Both flowers need a lot of sunlight to stay beautiful, so ensure that you give them as much light as possible. Also, please note that lantanas may overgrow the petunias. This means that you need to prune their leaves and stems regularly.

2. Clover

Growing Clover Plants

Uses and Benefits
  • Adds nitrogen to the soil
  • Attracts beneficial insects
Growing Season
  • Start: Spring
  • End: Fall or winter
Care Requirements
  • Soil: Any type, humus-rich
  • Temperature: 60 degrees Fahrenheit or more
  • Light: Full sun
Common Pests
  • Slugs
  • Powdery mildew
  • Eelworms

While petunias produce a lot of beautiful flowers, you’d agree that they consume a lot of nutrients before and during blooming. To save a lot of money spent on buying nitrogen-rich fertilizers, consider growing clovers near your petunias.

Clovers help to add a lot of nitrogen into the soil through the help of bacteria in their roots. Also, clovers can attract butterflies and other beneficial insects to your garden.

While you can use clovers as companions to your petunias, remember to always check their growth by pruning them often. Clovers grow rapidly, so you do not want them to overgrow the petunias. Also, ensure that the soil is not waterlogged so that the clovers and petunias do not die of suffocation.

3. Daisies

Cheerful Daisy Fields

Uses and Benefits
  • Dazzling appearance
  • Very similar care requirements
Bloom
  • Starts: Spring
  • Ends: Fall
Care Requirements
  • Soil: Any type, not extremely wet or dry
  • Temperature: 40-70 degrees Fahrenheit
  • Light: Full or partial sun
Common Pests
  • Slaters
  • Moths
  • Caterpillars

You could consider growing beautiful flowers such as daisies and petunias, as they have similar growing requirements. Daisies come in different colors just like petunias, so your garden will surely look radiant when you combine both flowers.

Also, you do not have to worry about growing daisies and petunias very close to each other so long as the soil is nutrient-rich.

Remember that the soil should not completely go dry so that the flowers can continue to thrive. If you see the daisy and petunias flowers falling, check the soil nutrients and the plants’ access to sunlight as those two factors affect the health of flowers.

4. Asparagus

Tasty Asparagus Stalks

Uses and Benefits
  • Repels pests
  • Gives you edible herbs
Growing season
  • Starts: Spring
  • Ends: Late summer
Care Requirements
  • Soil: Loam or sandy loam
  • Temperature: 75-85 degrees Fahrenheit
  • Light: Full sun
Common Pests
  • Asparagus aphids
  • Asparagus beetles
  • Caterpillars

Why not grow a companion crop that you can eat? Asparagus is suitable for companion planting with petunias, so you should grow the vegetable close to the flowers. Even though both plants have different uses, they can surely grow together.

In the end, you will have sweet vegetables for your consumption while the petunias will continue to beautify your garden.

Your petunias can gain a lot from the asparagus plants, especially if you add nitrogen-rich fertilizers to the latter. So long as you continue to feed the plants, they will both grow successfully without any problems. Ensure that they both get as much light as they need.

5. Carnations

Delicate Carnation Blossoms

Uses and Benefits
  • Colors contrasting those of petunias
  • The same care requirements
Bloom
  • Starts: Late spring
  • Ends: Early fall
Care Requirements
  • Soil: Well-drained, fertile
  • Temperature: 50-65 degrees Fahrenheit
  • Light: Full sun
Common Pests
  • Beet armyworm
  • Carnation leaf roller
  • Cabbage looper

You can grow carnations and petunias together. Imagine how beautiful your garden will look when the dazzling colors of the petunia flowers match those of the carnation flowers.

While you can grow multi-colored carnations with multi-colored petunias, it’s best if you have a color theme so that your garden can look properly arranged.

Both plants need full sun to produce their beautiful flowers, so do not grow them under shade. Also, ensure that you grow them almost at the same time so that one will not outgrow the other. Prune them to retain their size and shape.

6. Candytuft

Red Candytuft Flowers

Uses and Benefits
  • Dazzling beauty
  • Highly fragrant
Bloom
  • Starts: Early spring
  • Ends: Mid-summer
Care Requirements
  • Soil: Well-drained
  • Temperature: 75-85 degrees Fahrenheit
  • Light: Full sun
Common Pests
  • Caterpillars
  • Snails
  • Slugs

Here’s yet another beautiful plant that you can grow with your petunias. When planting petunias, you can add candytuft flowers between the rows. These flowers will give your garden the best look and scent.

While some varieties of candytufts come with flowers of different colors, most of them are white and will help to boost the color of your petunias. You can grow both plants in any arrangement.

While candytuft flowers can grow in partial shade, you will appreciate their appearance the most if you place them in full sun. Also, ensure that the soil has sufficient potassium and phosphorus, as these nutrients are responsible for the beautiful flowers.

7. Snapdragons

Blooming Snapdragon in Garden

Uses and Benefits
  • Dazzling appearance
  • Very similar care requirements
Bloom
  • Starts: Spring
  • Ends: Early frost
Care Requirements
  • Soil: Nutrient-rich, well-drained
  • Temperature: 60-75 degrees Fahrenheit
  • Light: Full sun
Common Pests
  • Aphids
  • Mites
  • Mealybugs

When growing petunias, you may want to add other beautiful flowers to keep your garden looking great during the warm season. The snapdragon plant makes a good companion for petunias, so you should consider growing it as well.

The snapdragon flowers, which can come in colors such as pink, purple, white and cream, will surely match those of your petunias in your preferred color theme.

You can grow snapdragons and petunias as close to each other as you want. Just make sure that there are enough nutrients in the soil for both plants. Also, if you find that one is outgrowing the other, prune the overgrown one so that there can be space for the other.

8. Lobelia

Pretty Lobelia Blooms

Uses and Benefits
  • Contrasting colors
  • Low-maintenance
Bloom
  • Starts: Spring
  • Ends: Fall
Care Requirements
  • Soil: Consistently moist
  • Temperature: 65-75 degrees Fahrenheit
  • Light: Full sun or partial shade
Common Pests
  • Snails
  • Slugs
  • Aphids

If your petunias are missing blue, indigo or purple flowers, you can complete the garden design with lobelia flowers. These flowers may not be similar to petunias in appearance, but they will surely blend in with them. Lobelia and petunia flowers can grow well together, as they have similar growing requirements.

Note that lobelia plants are toxic, so you want to be careful when handling them in the garden. Remember to wear your gloves when pruning the flowers so that you do not get exposed to their toxins. Even though you can use lobelias and petunias as cut flowers, remember to handle them with care.

Conclusion

There are quite a few truly beautiful flowers that you can add to your petunias.

Here are some points from this article:

  • Beautiful flowers that you can grow with your petunias are daisies, snapdragons and carnations.
  • Remember that most plants prefer full sun to thrive and produce beautiful flowers. Ensure that they get enough sunlight.
  • While you can grow petunias closely with other flowers, remember to always fertilize the soil so that there will be enough nutrients for every plant.
  • If one of the companion plants outgrows the other, prune it to keep it in shape.
  • Your petunias can get free nitrogen and other benefits when you grow them with clovers and other legumes.

Which plant would you like to grow with your petunias? Don’t forget about the plant care tips in this article. To learn about zinnia companion plants<span style=”font-weight: 400;”>, allium companion plants, pansy companion plants and other suitable garden mates, check out our other articles.

5/5 - (5 votes)
Evergreen Seeds