Commonly referred to as ‘Tree Marigolds’ or ‘Mexican Marigold’, Tagetes lemmonii is a versatile and attractive plant that not only adds vibrant flowers to your garden but also brings interesting foliage.
Known for its hardiness and ease of care, this plant thrives in a variety of conditions and is particularly beloved for its fragrant, textured leaves and ability to attract pollinators like bees and butterflies.
With its fine-textured, bright green foliage, Tagetes lemmonii reaches a height of approximately 1–2 meters and can serve as an excellent addition to a cottage garden.
The leaves release a subtle scent when brushed or crushed, making it a fragrant delight in the garden. In summer, it provides lush greenery, and in autumn, its brilliant yellow flowers become a highlight, lasting through winter.
Tagetes lemmonii Care
Soil and Watering Requirements
For optimal growth, Tagetes lemmonii requires well-drained, humus-rich soil. A well-drained soil ensures that the plant does not sit in waterlogged conditions, which could lead to root rot. It thrives in slightly moist soil but is known for its drought tolerance once established, making it a great option for xeriscaping or low-maintenance gardens.
Regular watering is important during the plant’s establishment phase, particularly in hot summer months. However, once established, Tagetes lemmonii can withstand dry spells, making it relatively easy to care for. It is important to ensure that the plant has access to water during its flowering period, as this encourages the best bloom production.
Sunlight and Temperature
One of the key factors to the success of Tagetes lemmonii is a sunny position. It thrives in full sun to partial shade, though it will produce the most abundant flowers and healthiest foliage when given plenty of sunlight. A sunny garden spot will encourage its growth and ensure that the bright yellow blooms appear in abundance through autumn and winter.
The plant is well-suited to warm climates and can handle heat well, especially in regions where daytime temperatures regularly exceed 25°C (77°F). However, it is important to note that while the plant is drought-tolerant, it still benefits from protection from extreme heat, particularly in areas where temperatures exceed 35°C (95°F) for prolonged periods.
Height and Growth Rate
Tagetes lemmonii is a fast-growing plant, reaching a height of 1 to 2 meters (3 to 6 feet). It also has a spread of about 1 meter (3 feet). Its compact growth habit makes it a great plant for borders or as a backdrop in mixed garden beds. The foliage is dense and vibrant, making it an excellent choice for filling in gaps in a garden and creating texture.
As the plant matures, it can form a small shrub-like structure, with its fine-textured leaves adding interest to the garden even when it is not in bloom. During the autumn months, however, the plant’s yellow flowers provide an additional burst of color and contrast, making it an eye-catching feature.
Pruning and Maintenance
Pruning Tagetes lemmonii is an essential part of keeping it healthy and encouraging a second flush of blooms. After the main flowering season, usually in late autumn or early winter, it is advisable to prune the plant lightly. This helps maintain its shape and promotes more compact growth. It can also encourage a second round of flowering in early spring.
Before new growth begins in late winter, it is recommended to remove any damaged or dead foliage. This not only keeps the plant looking tidy but also ensures that the new growth will emerge without obstruction. Pruning back after the flowering season helps to keep the plant vibrant and may even extend its flowering period into the next season.
Climate Zones and Growing Conditions
Tagetes lemmonii is adaptable to several climate zones, thriving in regions with mild winters and warm summers. In the United States, it grows well in USDA hardiness zones 8 to 11, which covers many areas with temperate to subtropical climates. In Australia, it can be grown in temperate regions, particularly in areas with dry summers and mild winters. In the UK and Europe, it can be grown in warmer areas, ideally in zones that experience mild winters, such as parts of southern Europe and coastal regions of the UK.
The plant enjoys warm temperatures, with an ideal temperature range between 15°C (59°F) and 25°C (77°F). It is also frost-tolerant, which makes it an excellent choice for gardens that experience occasional light frosts during winter months.
Summary Information
- Botanical Name – Tagetes lemmonii
- Common Names – Mexican Marigold
- Position – Best in full sun to part shade.
- Soil – Humus rich, moist and well drained.
- Height – Generally from 1 – 2 metres
- Spread – Will grow to around 1 metre.
- Growth Rate – Fast
- Foliage – Deep green and fragrant.
- Flowers – Bright yellow.
- Flowering Time – Winter.
- Frost tolerant – Yes
- Drought tolerant – Yes
Fragrance and Attraction
One of the standout features of Tagetes lemmonii is its aromatic foliage. When brushed against or crushed, the leaves release a distinctive, pleasant fragrance, which adds an extra sensory experience to the garden. This scent is often described as a combination of citrus and mint, providing a refreshing and invigorating aroma.
Additionally, the bright yellow flowers of Tagetes lemmonii are not only visually stunning but also attract a wide variety of pollinators, including bees and butterflies. These insects are drawn to the flowers’ nectar, making the plant an excellent choice for creating a pollinator-friendly garden. The plant’s ability to support biodiversity makes it a valuable addition to any garden.
Tagetes lemmonii is available for sale from the following nurseries
125 Palmer Rd Jindivick 3818
Open Thursday - Sunday 10am - 4pm
Specialising in growing and selling Rare and Unusual Trees, shrubs Perennials Bulbs and Climbers, a unique nursery with amazing stock.
www.muskersbroughtonhall.com.au