How to Care for African Lily ‘Midnight Star’

Agapanthus ‘Midnight Star’, also known as African Lily ‘Midnight Star’, Lily of the Nile ‘Midnight Star’, or Agapanthus ‘Navy Blue’, is a stunning and versatile plant belonging to the Agapanthus – African Lilies family. With its deep blue, showy flowers and lush green foliage, this plant is perfect for adding an exotic touch to your garden. In this article, we will discuss the essential care tips and considerations for this beautiful perennial, including watering, light care, soil care, growing region, growth rate, height, size and spread, season and temperature, pruning, flowering, pests, attracting wildlife, garden styles, companion plants, and frequently asked questions.

Main Caring Considerations


Agapanthus ‘Midnight Star’ requires average watering to thrive. It’s essential to ensure the soil remains consistently moist but well-drained. Overwatering can lead to root rot, while underwatering can cause the plant to become stressed and produce fewer flowers.

Light Care

This plant thrives in full sun to partial sun conditions. Providing ample sunlight will encourage the best growth and most prolific flowering. However, if you live in an area with very hot summers, some afternoon shade can be beneficial to prevent the plant from scorching.

Soil Care

Agapanthus ‘Midnight Star’ prefers moist but well-drained soil with a pH range from acidic to alkaline (neutral is also acceptable). It can tolerate various soil types, including chalk, clay, loam, and sand. Adding organic matter such as compost to the soil can help improve drainage and provide essential nutrients for optimal growth.

Growing Region

This plant is suitable for growing in USDA hardiness zones 1 through 12. It’s a versatile plant that can adapt to various climates and conditions, making it a popular choice for gardeners worldwide.

Growth Rate, Height, Size, and Spread

Agapanthus ‘Midnight Star’ typically grows at a moderate rate, reaching heights of 2 to 3 feet (60 to 90 cm) and a spread of 1 to 2 feet (30 to 60 cm). The mature size of this plant is approximately 20 inches (50 cm) in diameter.

Season and Temperature

This plant blooms in the summer months, showcasing its beautiful deep blue flowers. It is hardy and can tolerate a wide range of temperatures, from cool to warm climates. However, in colder regions, it’s essential to protect the plant from frost by using mulch or moving it to a sheltered location during the winter months.


Pruning Agapanthus ‘Midnight Star’ is relatively easy. Remove spent flower stalks after they have finished blooming to encourage more flowers and maintain a tidy appearance. Additionally, trim back any damaged or dead foliage as needed to keep the plant looking healthy and vibrant.


The striking deep blue flowers of Agapanthus ‘Midnight Star’ appear in the summer months, creating a beautiful display in your garden. These flowers are also excellent for cutting and using in floral arrangements, adding a touch of elegance and color to any space.


Agapanthus ‘Midnight Star’ is relatively pest-resistant, but it can occasionally attract aphids and other common garden pests. Keep an eye out for any signs of infestation and treat promptly with appropriate measures if necessary.


Not only is this plant deer and rabbit-resistant, but it also attracts a variety of wildlife, including birds, butterflies, and hummingbirds. Additionally, it has a high tolerance for salt, making it an excellent choice for coastal gardens.

Garden Styles

Agapanthus ‘Midnight Star’ is well-suited for various garden styles, such as city and courtyard gardens, coastal gardens, gravel and rock gardens, and Mediterranean gardens. It makes an excellent addition to beds and borders, edging, patio and container plantings, and wall-side borders.

Companion Plants

When selecting companion plants for Agapanthus ‘Midnight Star’, consider plants with similar growing requirements and complementary colors. Some excellent options include Lavender, Rosemary, Echinacea, Coreopsis, and ornamental grasses.

Frequently Asked Questions

Is Agapanthus ‘Midnight Star’ toxic to pets?
While not considered highly toxic, Agapanthus plants can cause mild gastrointestinal upset if ingested by pets. It’s best to keep curious pets away from this plant to prevent any issues.

Can I grow Agapanthus ‘Midnight Star’ in a container?
Yes, this plant is well-suited for container gardening. Just make sure to use a well-draining potting mix and a container with drainage holes to prevent waterlogging.


Agapanthus ‘Midnight Star’ is a beautiful and versatile plant that can add a touch of exotic elegance to any garden. With its showy deep blue flowers, lush green foliage, and easy care requirements, it’s a must-have for any gardener looking to make a statement. Follow the care tips and considerations outlined in this article to enjoy a thriving and vibrant Agapanthus ‘Midnight Star’ in your garden.

Martin Duran

Hey y'all! My name is Martin Duran and I am from Cali, Colombia. Since 2018 I have been learning about plants and how to take care of them. Here's is my journey... “The clearest way into the Universe is through a forest wilderness.” ― John Muir

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