Petunia flower in pot

What to Plant With Petunias in Pots?

Who doesn’t love a vibrant pot of flowers adding color and life to a porch, balcony, or garden? One of the most popular choices for potted plants is the delightful petunia, known for its bright, cheerful blossoms. But, wouldn’t it be nice to add a little more variety to that pot? Just as we humans enjoy a little companionship, so do our plant friends. In this guide, we’ll delve into the delightful world of companion planting with petunias in pots.

Live Aromatic and Healthy Herb – Lemon Verbena (4 Per Pack) – Naturally Improves Sleep Quality – 6″ Tall by 4″ Wide in 1 Pint Pot
  • HEALTHY PLANTS: Lemon verbena is a great herb to add to your garden. It has a wonderful lemon fragrance and not to mention is high in antioxidants which can helpful for inflammation!
  • GROWTH: Lemon verbena is a fast-growing herb that can grow up to 6ft tall and 8ft wide.
  • CARE: Plant lemon verbena in a location with full sun and rich, well-draining loam soil. Water regularly whenever the top of the soil dries out.
  • FUN FACT: Lemon Verbena is classified as a shrub and symbolizes sensitivity.
  • LIVE PLANTS: Our plants are grown exclusively for Deep Roots and The Three Company, shipped fresh directly from our greenhouse to you!

Understanding Companion Planting

The term “companion planting” might sound a bit fancy, but it’s quite a simple concept, really. It’s all about planting different types of plants close together so they can help each other out. Like a buddy system for plants! Some plants might deter pests that usually bother their plant friends. Others might enrich the soil with nutrients that their companions need. And some just look lovely together, creating a visual feast for the eyes. With the right companions, your petunias can thrive even more beautifully. Ready to meet the potential buddies for your petunias? Let’s get started!

See also  How High Must a Cranberry Bounce Before It Is Harvested?

Best Companion Plants for Petunias in Pots

Looking to give your petunias some pot buddies? Here are some top-notch contenders that not only play well with petunias but also complement their beauty.

  1. Verbena: This is a plant that not only adds a variety of colors but also shares similar care needs with petunias. Their cascading habit makes them excellent for hanging baskets or edges of pots.
  2. Lobelia: If your petunias are bringing the heat with their vibrant colors, cool things down a little with lobelia’s soothing blue flowers. They also love full sun and well-drained soil just like petunias.
  3. Sweet Alyssum: This plant produces clusters of small, sweet-smelling flowers. Their trailing habit and love for full sun make them perfect pot buddies for petunias.
  4. Euphorbia: This plant’s wispy, white flowers create a lovely contrast against the bold colors of petunias. Plus, they enjoy the same light and water conditions.

Remember, the best companion for your petunia might depend on the specific variety you have, as well as the conditions in your location.

Lucia Dark Blue (Lobelia) Live Plant, Blue Flowers, 4.25 in. Grande, 4-pack
  • 6-12 in. tall and 1-2 ft. wide, trails up to 2 ft. at maturity
  • Partial to full sun (4+ hours) required
  • Annual except in zones 9-11, be sure to check your USDA zone to ensure success
  • Annuals are 5-8 in. tall at shipment
  • Grande containers are 4.25 inches in diameter and tall

Tips for Successful Companion Planting with Petunias

Pairing your petunias with companion plants can create a more visually appealing pot. Here are a few tips to make your companion planting successful:

  1. Check the care needs: Make sure your chosen companions like the same conditions (light, water, soil) as your petunias.
  2. Consider size and growth habit: Mix trailing plants with those that grow upright. This adds depth and interest to your pot.
  3. Think about color: Choose plants with complementary colors to make your pot more eye-catching.
  4. Give them space: While companion plants can help each other, they also need their own space to grow. Make sure your pot is big enough for all your plant friends.
See also  What Does Elderflower Taste Like?

Remember, gardening is a journey. Don’t be afraid to experiment with different combinations to find out what works best for you and your plants.

Planting Steps for Petunias and Companions in Pots

Ready to get those hands dirty? Let’s walk through how to pot your petunias with their new companions.

  1. Choose the right pot: Make sure it has good drainage and is large enough to accommodate all the plants you plan to pot.
  2. Add soil: Use a high-quality potting mix, which is light and fluffy, great for your petunias and companions.
  3. Plant your petunias: Create a hole in the center and plant your main star, the petunia.
  4. Add companion plants: Arrange the companion plants around the petunia. Remember to consider their growth habits – place trailing plants near the edge and upright ones towards the back or center.
  5. Cover with soil: Once you’re happy with the arrangement, fill in with more potting mix. Be sure all roots are covered, but avoid burying the stem.
  6. Water generously: Give all plants a good soak to help them settle in their new home.
FoxFarm Ocean Forest Potting Soil, 1.5 cu ft, brown/a (FX14000)
  • Ocean Forest organic soil is ready to use right out of the bag
  • Ideal for containerized plantings
  • Contains earthworm castings, bat guano and micronutrients
  • Light texture and well aerated
  • Available in 1.5-Cubic feet

Caring for Your Potted Petunias and Companions

Taking care of your new potted community is straightforward:

  1. Water: Keep the soil evenly moist, but avoid overwatering. Stick a finger in the soil – if the top inch is dry, it’s time to water.
  2. Light: Place your pot where it will receive at least six hours of sunlight each day.
  3. Feeding: Feed with a balanced plant food about once a month during the growing season.
  4. Pruning: Regularly deadhead petunias and pinch back companion plants to encourage bushier growth.
See also  Is Russian Sage Invasive?


There you have it, the easy-peasy guide to planting petunias and companions in pots. With the right care, these plants can create a stunning display that will brighten up any space. Enjoy the process, and remember, gardening is about trying, learning, and most importantly, having fun!

What to Plant With Petunias in Pots?

About the author

Victoria Nelson

Victoria Nelson is a passionate gardener with over a decade of experience in horticulture and sustainable gardening practices. With a degree in Horticulture, she has a deep understanding of plants, garden design, and eco-friendly gardening techniques. Victoria aims to inspire and educate gardeners of all skill levels through her engaging articles, offering practical advice drawn from her own experiences. She believes in creating beautiful, biodiverse gardens that support local wildlife. When not writing or gardening, Victoria enjoys exploring new gardens and connecting with the gardening community. Her enthusiasm for gardening is infectious, making her a cherished source of knowledge and inspiration.

View all posts