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Agapanthus, also known as the African Lilly are stunning, summer-flowering perennials that thrive in well drained, sunny area of the garden. Agapanthus are a hugely popular perennial due to their showy flower heads, commonly in shades of blue or purple, however there are some other colours available now, such as pink and white. All our agapanthus are garden ready plants, they are well established and can be delivered nationwide across the UK.

Agapanthus, commonly known as Lily of the Nile, is a stunning perennial plant that produces beautiful clusters of blue or white flowers. Native to South Africa, these hardy plants are well-suited for a variety of climates. Here is a step-by-step guide to help you successfully plant and care for Agapanthus:


Choose the Right Location

Agapanthus thrives in full sun to partial shade. Select a location that receives at least 6 hours of sunlight per day.

Ensure well-draining soil to prevent water logging, as Agapanthus prefers slightly moist conditions.


Soil Preparation

Agapanthus prefers slightly acidic to neutral soil (pH 6.0-7.0). Amend the soil with organic matter like compost to improve fertility and drainage.

Work the soil to a depth of at least 12 inches to provide a loose and friable planting environment.



Plant Agapanthus in the spring or early Autumn when the soil is warm.

Dig a hole twice the diameter of the root ball and of similar depth.

Place the plant in the hole, ensuring the crown is at ground level. Space multiple plants about 1 to 3 feet apart, depending on the variety.



Keep the soil consistently moist during the growing season. Water deeply once a week, more often during hot and dry periods.

Allow the soil to dry out between waterings to prevent root rot.



Apply a layer of organic mulch, such as shredded bark or straw, around the base of the plants. Mulching helps retain soil moisture, suppress weeds, and regulate soil temperature.



Feed Agapanthus with a balanced, slow-release fertiliser in the spring when new growth begins.

Avoid excessive use of high-nitrogen fertilisers, as this can lead to lush foliage at the expense of flower production.



Remove spent flower heads to encourage continuous blooming and maintain a tidy appearance.

Prune dead or damaged leaves to promote overall plant health.


Winter Care

Agapanthus is generally hardy, but in colder climates, provide a layer of mulch around the base of the plants to protect them from freezing temperatures.

Consider planting Agapanthus in containers in colder regions, allowing you to bring them indoors during the winter.



Every 3-5 years, divide mature clumps to rejuvenate the plants and control their size. This is best done in the spring or Autumn.


Pests and Diseases

Agapanthus is relatively pest and disease resistant. However, keep an eye out for snails, slugs, and aphids.

Treat any pest problems promptly using environmentally friendly methods.

After planting your Agapanthus, proper aftercare is essential to ensure their continued health and vibrant growth. Follow these guidelines for effective aftercare:



Establishment Phase (first few months): Keep the soil consistently moist, watering deeply at least once a week. Ensure the root zone is consistently damp but not waterlogged.

Mature Plants: Agapanthus are drought tolerant once established. Water deeply during dry periods, allowing the soil to dry out between waterings. Avoid overwatering, as this can lead to root rot.



Maintain a 2 to 3-inch layer of mulch around the base of the plants. Mulch helps retain soil moisture, suppress weeds, and regulate soil temperature. Replenish mulch as needed.



Apply a balanced, slow-release fertiliser in the spring as new growth begins. Avoid excessive use of nitrogen, as this can lead to excessive foliage at the expense of flowers.

Follow recommended dosage on the fertiliser package for best results.



Remove spent flower heads regularly to encourage continuous blooming. This also helps in preventing the plant from putting energy into seed production.

Trim yellow or damaged leaves to maintain the plant’s overall appearance.


Winter Protection

In colder climates, add a layer of mulch around the base of the plants in the Autumn to provide insulation and protect against freezing temperatures.

Consider planting Agapanthus in containers in regions with harsh winters, allowing you to bring them indoors for protection.



Every 3-5 years, divide mature Agapanthus clumps to prevent overcrowding and promote better flowering. Spring or Autumn is the best time for division.

Lift the entire clump, separate the bulbs, and replant them with enough space to grow.


Pest and Disease Control

Regularly inspect plants for pests such as snails, slugs, and aphids. Treat any infestations promptly using appropriate methods.

Agapanthus is generally resistant to diseases, but good garden hygiene can prevent issues. Remove and dispose of any dead or diseased plant material.


Container Care (if applicable)

If growing Agapanthus in containers, ensure the pots have drainage holes to prevent waterlogging.

Fertilise container plants more frequently, as nutrients leach out with watering.


Support for Tall Varieties

Provide support for taller varieties, especially in windy areas. Stake the plants if necessary to prevent them from bending or breaking.


Enjoy and Share

Once your Agapanthus are well-established and blooming, take the time to enjoy their beauty.

Consider sharing divisions with friends or neighbours to spread the joy of these stunning plants.


By following these aftercare tips, you can help your Agapanthus thrive and continue to bring beauty to your garden for years to come.

At Proctors Nursery, we are committed to providing you with comprehensive guidance on caring for your Agapanthus plants. However, it’s important to acknowledge that certain factors, such as extreme weather conditions, are beyond our control. Extreme events, including severe frost, prolonged heatwaves, high winds, or heavy rainfall, can impact the health of your Agapanthus plants.


Our Advice

Weather Monitoring

Stay vigilant and regularly monitor local weather forecasts.

Extreme conditions may require additional protective measures for your Agapanthus.

Protective Measures

During periods of extreme weather, consider implementing protective measures, such as providing temporary shading during intense heat or covering plants during unexpected frost.

Aftermath Assessment

Following extreme weather events, assess the condition of your Agapanthus.

If damage occurs, follow appropriate care steps, including pruning damaged parts and adjusting watering routines.



Natural Variables

Agapanthus, like any living organism, is influenced by natural variables.

Extreme weather events are inherent risks that may impact plant health despite best care practices.

No Guarantee

Due to the unpredictable nature of extreme weather, we cannot guarantee the outcome of your Agapanthus’s response to such conditions.

Plants may exhibit stress or damage beyond our control.


Customer Responsibility

Preventive Measures: We encourage you to take proactive measures based on weather forecasts and to implement protective strategies to minimise potential harm during extreme weather.

Adaptation: Recognise that Agapanthus, while resilient, may respond differently to various weather conditions.

Adapt care practices accordingly and be prepared to address any adverse effects.


Contact Us

If you have specific concerns or questions related to extreme weather impacts on your Agapanthus, please don’t hesitate to reach out. Our team is here to offer guidance and support within the scope of our expertise.




Note: This disclaimer serves to acknowledge the unpredictability of extreme weather events and the associated risks to Agapanthus plants. Your understanding and proactive care are key to ensuring the well-being of your garden.