Marigolds and lavender are appreciated for their beauty and fragrance. Growing them together, known as companion planting, leverages their natural characteristics to benefit one another. This article explores the advantages and practical considerations of cultivating marigolds and lavender in close proximity.
Benefits of Combining Marigolds and Lavender
Planting marigolds and lavender together enhances garden health and vibrancy. Marigolds, especially French varieties, deter common garden pests. Their roots release compounds that suppress root-knot nematodes. While scientific evidence for deterring other insects through scent is less conclusive, their pungent aroma is observed to repel pests like whiteflies and aphids.
Lavender complements this by deterring larger garden visitors. Its strong scent deters animals like deer and rabbits. Beyond pest management, lavender attracts beneficial insects. Its fragrant flowers appeal to pollinators like bees, essential for plant reproduction.
The visual and aromatic synergy between marigolds and lavender also adds considerable appeal to any landscape. Marigolds offer a spectrum of warm colors, ranging from bright yellows and oranges to deep reds, providing a cheerful contrast to lavender’s cool purple and blue hues. Their varied textures, from the dense blooms of marigolds to the delicate spikes of lavender, create an engaging display. The combined fragrance of earthy marigolds and sweet lavender enriches the garden’s sensory experience.
Ideal Growing Environment
Successful cohabitation for marigolds and lavender hinges on meeting their environmental preferences. Both plants require ample sunlight, ideally receiving at least six to eight hours of direct sun each day for robust growth and prolific flowering. Lack of adequate light can result in weaker plants and diminished blooms.
Well-draining soil is a shared necessity for both to prevent root rot. Marigolds thrive in moderately fertile soil with a pH between 6.0 and 7.0. Lavender prefers slightly alkaline to neutral conditions, ideally with a pH of 6.5 to 7.5. Amending heavy clay soils with organic matter or sand can significantly improve drainage for both.
Watering strategies need careful consideration due to their differing moisture preferences. Marigolds prefer consistent moisture, typically needing water when the top layer of soil begins to dry. In contrast, established lavender plants are drought-tolerant and less frequent watering is suitable. Overwatering lavender can be detrimental, so directing water to the base of marigolds while allowing the soil around lavender to dry out more thoroughly between waterings is important.
Planting and Ongoing Care
Successful planting begins with appropriate spacing for both marigolds and lavender. Marigolds generally need 8 to 12 inches between plants, while lavender requires 12 to 18 inches, ensuring good air circulation and root development. After positioning, a thorough initial watering helps establish the plants in their new environment.
Routine maintenance supports continuous flowering and plant health. Deadheading marigolds (removing spent flowers) redirects the plant’s energy from seed production to producing new blooms, extending their vibrant display throughout the season. Lavender benefits from light pruning after its main bloom cycle to maintain shape and encourage new, healthy growth.
Fertilization needs are minimal for both plants, particularly for lavender, which thrives in leaner soils. Marigolds generally do not require heavy feeding, and too much nitrogen can lead to excessive foliage at the expense of flowers. If soil nutrients are poor, a light application of a balanced, slow-release fertilizer at planting time or a liquid fertilizer geared towards blooms can be considered for marigolds. An annual application of compost in spring is often sufficient for lavender, providing gentle nourishment.
Common Considerations and Tips
Selecting appropriate varieties enhances successful cohabitation. French marigolds deter pests, and English or French lavenders are popular choices. French lavender, for instance, tolerates slightly more acidic soil than other types.
Good air circulation around both plants helps prevent fungal issues, especially in humid conditions. Regularly observing plants for stress allows for timely care adjustments, promoting long-term health and vitality.