Foliar Garden

Companion Vegetables for Dahlias

Companion vegetables for dahlias are vegetables that can be planted near or around dahlia plants to maximize the garden’s productivity. Some of the best companion vegetables for dahlias include tomatoes, cucumbers, carrots, squash, and beans. Tomatoes thrive in the warmth provided by nearby dahlias and help shade them from scorching summer temperatures.

Cucumbers add nitrogen to the soil which helps feed and nurture the flowers’ roots. Carrots do well with Dahlias because they like cool moist soil conditions similar to Dahlia tubers; plus their foliage shades out weeds. Squash grows quickly and creates a natural trellis for climbing varieties of Dahlia while also blocking sunlight from other garden beds as it matures.

Finally, beans provide additional nitrogen which helps both plants grow larger blooms more rapidly than if planted separately.

Dahlias are a beautiful and versatile flower that can be planted in the garden or container. To add to their beauty, companion vegetables can be planted around dahlias to create an even more stunning display. Companion vegetables that pair well with dahlias include tomatoes, onions, peppers, beans, cucumbers and lettuce – all of which will benefit from the increased moisture and nutrients provided by the soil beneath the Dahlia’s roots.

Planting these companion vegetables alongside your Dahlia blooms will help create a unique and vibrant garden setting!

Companion Vegetables for Dahlias


What Can I Companion My Dahlia Plant With?

Dahlias look beautiful when paired with a variety of other plants. Some great companion plants for dahlias include ornamental grasses, daylilies, and tall perennials such as delphiniums or foxgloves. If you want to add some contrast in texture and color, try adding silver foliage like lamb’s ears or artemesia.

To draw the eye up even further, consider planting trailing vines like clematis or morning glory against a trellis near your dahlia bed. This will create an interesting vertical element that will really make your garden stand out!

Can I Plant Dahlias With Onions?

Yes, you can plant dahlias with onions. Dahlias are a hardy perennial flower that loves full sun and well-drained soil, making them an ideal companion for the onion. Onions are also easy to grow and thrive in similar conditions as dahlias—warm temperatures and plenty of sunlight.

Planting the two together is beneficial because it allows you to use both plants’ natural pest repellent properties while providing different colors, heights, shapes and sizes of flowers all season long. Additionally, when planted close to each other they help keep weeds at bay due to their dense foliage structure.

Can You Use Tomato Cages to Support Dahlias?

Yes, tomato cages can be used to support dahlias. Tomato cages are ideal because they are tall enough to provide ample support for the dahlia’s long stems and heavy blooms, while also being lightweight and easy to move around in the garden. However, it’s important to ensure that your tomato cage is strong enough for supporting the weight of the plant and its flowers.

If needed, you can reinforce a regular tomato cage with some wire or by wiring together two or more cages for extra stability. Additionally, when setting up your tomato cage make sure it is properly secured into the soil so that it doesn’t blow over in windy conditions.

What is the Best Plant Food for Dahlias?

When it comes to choosing the best plant food for dahlias, an all-purpose fertilizer with a balanced nitrogen-phosphorous ratio is recommended. A slow release, granular fertilizer is ideal as it will provide a steady supply of nutrients over time and won’t burn or damage the plants. For best results, fertilize your dahlias once in spring when new growth begins and again in late summer or early fall to encourage strong blooms during flowering season.

Make sure to follow instructions on the label for proper application rates and timing for your particular variety of dahlia. In addition to regular fertilizing, supplementing with additional calcium can also be beneficial if you notice signs of blossom end rot or other issues related to calcium deficiency.

Companion Plants for Pest Protection for Dahlias / Dahlia Plant Care / Pest Control for Dahlias

Dahlia Combinations

Dahlias are one of the most popular flowers for home gardens and come in a wide variety of colors, shapes, and sizes. The flower petals can be mixed together to create stunning color combinations that range from subtle pastels to vibrant jewel tones. Combining different types of dahlias can also add visual interest to your garden bed or container planters with contrasting textures, forms, and heights.

What Flowers Go With Dahlias in a Bouquet

Dahlias are a classic flower for bouquets, and they look especially beautiful when paired with other types of blooms. Popular flowers to pair with dahlias include roses, lilies, carnations, hydrangeas, and gladioli. These various shapes and colors create a stunning contrast that will be sure to make your bouquet stand out!

Can You Plant Zinnias And Dahlias Together

Yes, you can plant zinnias and dahlias together. Both of these flowers are annuals, so they will bloom and die off in the same season. Zinnias prefer full sun while dahlias require a bit more shade, but they both look beautiful when planted together in a garden bed or planter box.

These flowers come in many different colors and sizes, so you can create an array of vibrant hues to brighten up your outdoor space!

Companion Plants for Dahlias in Containers

Companion planting is an ideal way to add variety and interest to your dahlia container garden. Plants such as marigolds, nasturtiums, petunias, begonias and zinnias are all great choices for companion plants in containers when growing dahlias. These colorful blooms will help create a beautiful display of complementary colors and textures alongside the vibrant hues of your dahlia flowers.

Grasses to Plant With Dahlias

When it comes to companion planting with dahlias, grasses are a great choice. Grasses provide texture and visual contrast in the garden while helping to support the strong stems of dahlias. Ornamental grasses like Miscanthus sinensis ‘Yakushima Dwarf’ or Pennisetum orientale make an excellent backdrop for dahlias and can add height and color to your garden display.

When planting together, be sure to space the plants appropriately so that they have enough room for healthy growth without competing for resources.

Peonies And Dahlias Together

When it comes to flower arrangements, peonies and dahlias are a classic combination. Both flowers boast bright colors, lush petals and tall stems that contrast nicely with each other. Peonies offer an ethereal look, while dahlias provide structure, balance and depth in the arrangement.

Together they create a stunning floral display that is sure to make any space feel extra special.

How Close Can You Plant Dahlias

When planting dahlias, it is important to space them adequately in order to allow for proper air circulation and light penetration. Generally, single tuberous dahlias should be planted about 12-18 inches apart with larger varieties needing more room between plants. Closer spacing of 6-9 inches can be used when planting multiple tubers in a group or cluster.

This will ensure that the dahlia blooms have enough room to spread out and receive adequate sunlight.


In conclusion, companion vegetables are a great way to add visual interest and nutrients to your garden. Dahlias pair well with many vegetables, such as tomatoes, peppers, beans and squash. Planting them together can provide your garden with beautiful color and flavor while reducing the amount of supplemental fertilizer needed for optimal health.

Whether you’re looking for an edible addition or just want some showy flowers in your backyard, dahlias make a wonderful choice!