Gladiolus, with their striking, sword-like leaves and vibrant, trumpet-shaped flowers, are a summer garden showstopper. But to truly maximize their beauty and health, understanding companion planting is key. Choosing the right plants to grow alongside your gladiolus can enhance their growth, deter pests, and create a visually stunning display. This guide will explore the best companion plants for gladiolus, addressing common questions and concerns.
What are the best companion plants for gladiolus?
The ideal companion plants for gladiolus are those that complement their needs and offer mutual benefits. These include plants that:
- Repel pests: Many pests, like aphids and thrips, can plague gladiolus. Companion plants with strong scents can deter these insects.
- Improve soil health: Gladiolus thrive in well-drained soil rich in organic matter. Certain companion plants can improve soil structure and fertility.
- Provide visual contrast: Choosing plants with contrasting colors, heights, and textures can create a more dynamic and visually appealing garden bed.
Some excellent choices include:
- Marigolds: Known for their pest-repelling properties, marigolds release a scent that deters many common garden pests, including nematodes that can harm gladiolus corms.
- Nasturtiums: These colorful, edible flowers also repel aphids and other pests. Their vibrant blooms offer a beautiful contrast to the gladiolus.
- Calendula: Similar to marigolds, calendula deters pests and attracts beneficial insects like ladybugs, which help control pest populations.
- Basil: The strong aroma of basil can deter some insects, and its vertical growth habit creates a nice visual contrast with the gladiolus.
- Cosmos: These delicate, airy flowers provide a lovely contrast in texture and height, and their deep roots help improve soil aeration.
What should you NOT plant with gladiolus?
While many plants work well as companions, some should be avoided. Heavy feeders that compete for nutrients can stunt gladiolus growth. Avoid planting gladiolus near plants with high nutrient demands like:
- Heavy feeders: Plants known for their high nutrient requirements can deplete the soil, leaving your gladiolus starved.
- Plants susceptible to the same diseases: Planting gladiolus near plants prone to the same diseases can increase the risk of infection spreading.
What plants have similar growing conditions to gladiolus?
Gladiolus prefer full sun and well-drained soil. When choosing companions, select plants with similar needs to ensure everyone thrives. Many of the companion plants suggested above share these preferences.
What flowers go well with gladiolus?
The best flowers to plant with gladiolus are those that complement their height, color, and bloom time. Consider using shorter plants at the base of the gladiolus to create a layered effect. For instance, the contrasting colors and textures of marigolds and calendula provide a beautiful backdrop.
How do I plant gladiolus and companion plants together?
Planting is straightforward. Prepare the soil well by amending it with compost. Plant gladiolus corms pointed end up, about 4-6 inches deep and 6 inches apart. Plant companion plants around the gladiolus, ensuring adequate spacing for each plant's mature size. Regular watering and fertilization will help both the gladiolus and their companions flourish.
Do gladiolus need support?
Taller gladiolus varieties may require staking, especially in windy conditions. You can support them using stakes and plant ties. Some companion plants, such as taller cosmos, may also benefit from staking.
By carefully selecting companion plants, you can create a vibrant and healthy gladiolus garden that is both beautiful and productive. Remember to consider pest control, soil health, and visual appeal when making your choices. Happy gardening!
