How To Plant Alstroemeria [ Full Guide ]

Alstroemeria, also known as Peruvian lily or lily of the Incas, is a stunning flowering plant known for its vibrant and long-lasting blooms. Native to South America, alstroemeria is a popular choice for gardens and landscapes due to its attractive flowers and easy-to-care-for nature. Whether you’re a seasoned gardener or a beginner, learning how to plant alstroemeria will allow you to enjoy its beauty in your own garden. In this comprehensive guide, we will delve into the essential steps and considerations for successfully planting and growing alstroemeria.

Quick Answer: How To Plant Alstroemeria

Planting alstroemeria involves choosing the right location, selecting suitable soil, understanding watering needs, and ensuring proper sunlight exposure. The process includes preparing the planting area, digging the holes, inserting the alstroemeria rhizomes, and providing proper care during the establishment phase. Regular maintenance, such as watering and fertilizing, is vital for healthy growth and abundant flowering.

Choosing The Right Location For Planting

When planting alstroemeria, selecting the right location is crucial for its overall health and performance. Alstroemeria thrives in areas with full sun to partial shade, making it a versatile plant for various garden environments. Before planting, assess your garden’s available spaces and choose an area that receives ample sunlight for at least half of the day. However, if you live in a region with scorching summers, providing some shade during the hottest part of the day can benefit the plant.

Additionally, consider the soil drainage in the chosen location. Alstroemeria prefers well-draining soil to prevent waterlogging, which can lead to root rot and other issues. Avoid areas where water tends to accumulate or where the soil remains consistently soggy.

Another factor to consider when choosing a planting location is the potential for the alstroemeria to spread. Alstroemeria tends to be an aggressive grower, spreading through rhizomes, so it’s essential to provide adequate space to accommodate its expansion. Overall, selecting a location with good sunlight exposure, well-draining soil, and sufficient space for growth is key to successful alstroemeria planting.

Selecting The Right Soil For Alstroemeria

Alstroemeria thrives in fertile, well-draining soil. Before planting, assess the soil structure in your chosen location and make any necessary amendments to ensure it meets the plant’s requirements. A soil test can provide valuable information about the pH level and nutrient content, allowing you to make informed decisions about soil modification.

Ideally, alstroemeria grows best in slightly acidic to neutral soil with a pH range of 6.0 to 7.0. If your soil’s pH is outside this range, you can adjust it by incorporating soil amendments. Adding organic matter, such as well-rotted compost or peat moss, can help improve soil structure, fertility, and drainage.

To enhance drainage and prevent waterlogging, consider mixing coarse sand or perlite into the soil. This will create air pockets and improve overall soil texture, promoting healthy root development for the alstroemeria plants. Additionally, adding a balanced, slow-release fertilizer to the soil during planting can provide essential nutrients to support the initial growth of the plants.

When planting in containers, ensure the potting mix is well-draining and nutrient-rich. Look for a high-quality potting mix designed for flowering plants and consider supplementing it with slow-release fertilizer to sustain the plant’s growth in the confined environment of the container.

Understanding The Watering Needs Of Alstroemeria

Proper watering is essential for the health and vitality of alstroemeria plants. When establishing newly planted alstroemeria, it’s important to maintain consistent moisture levels without overwatering. Overly wet conditions can lead to root rot, while prolonged dry periods can stress the plants and hamper their growth.

Initially, after planting, water the alstroemeria thoroughly to settle the soil and ensure good root-to-soil contact. Keep the soil moist, but not waterlogged, during the establishment phase, typically the first few weeks after planting. Once the plants show signs of new growth, you can transition to a regular watering schedule.

During periods of active growth and flowering, which typically occurs in spring and early summer, provide the alstroemeria with consistent moisture. However, allow the soil to dry out slightly between waterings to prevent waterlogging. Mulching the soil around the plants can help retain soil moisture and reduce the frequency of watering, especially during hot or dry periods.

In contrast, during the plant’s dormant period in fall and winter, reduce the frequency of watering to allow the soil to dry out slightly between waterings. This mimics the plant’s natural conditions and supports a healthy dormancy phase.

When watering, aim to irrigate the soil directly at the base of the plants to ensure the water reaches the root zone. Avoid wetting the foliage excessively, as this can lead to fungal diseases and other issues. Overall, maintaining a balanced approach to watering, taking into account the plant’s growth stage and environmental conditions, is crucial for the long-term health of alstroemeria.

Sunlight Requirements For Healthy Alstroemeria

Alstroemeria thrives in well-lit environments and typically performs best in full sun to partial shade. When choosing a planting location, prioritize areas that receive ample sunlight, especially during the morning hours when the sunlight is gentler. However, if you live in a region with intense afternoon sun or high temperatures, providing some shade during the hottest part of the day can prevent sunburn and heat stress on the plants.

In regions with scorching summers, partial shade can benefit alstroemeria by providing relief from the intense midday sun. Consider planting the alstroemeria in locations where it receives morning sunlight and dappled shade or filtered light in the afternoon. This will help maintain optimal growing conditions and minimize the risk of sun damage.

When planting alstroemeria in containers, ensure the pots are positioned in areas that receive sufficient sunlight. Placing the containers on a sunny patio, balcony, or near a south-facing window can provide the necessary sunlight for healthy growth and abundant flowering.

Overall, understanding the sunlight requirements for alstroemeria and providing the appropriate light conditions can significantly impact the plant’s vigor, flower production, and overall performance in the garden or landscape.

Successfully planting alstroemeria involves careful consideration of its light, soil, and water requirements. Selecting the right location with adequate sunlight, ensuring well-draining and fertile soil, and maintaining proper watering practices are essential for the plant's establishment and long-term health.

By choosing a suitable planting location, amending the soil as needed, and providing consistent care, you can create an optimal environment for alstroemeria to thrive and produce its stunning blooms. Whether you're incorporating alstroemeria into a garden bed, border, or container display, understanding and implementing these planting practices will contribute to the plant's success and your enjoyment of its exquisite beauty. With attention to detail and regular maintenance, you can cultivate thriving alstroemeria plants that enrich your outdoor space with their colorful and long-lasting flowers.

How To Prepare The Planting Area For Alstroemeria

Alstroemeria, also known as Peruvian lily or lily of the Incas, is a stunning flowering plant that adds a touch of color to any garden or landscape. With its vibrant flowers in various shades of orange, pink, yellow, and white, alstroemeria is a popular choice among gardeners. This hardy perennial plant blooms from late spring to early fall, making it a long-lasting and visually appealing addition to your outdoor space.

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Planting alstroemeria is a relatively straightforward process, but it requires some attention to detail in order to ensure the plants thrive.

Before you begin planting alstroemeria, it is essential to choose the right location for the plants. Alstroemeria prefers a spot that receives full sun or partial shade. It also requires well-draining soil to avoid waterlogged conditions that can cause root rot.

Here are the steps to prepare the planting area for alstroemeria:

  1. Clear the area: Remove any weeds or debris from the planting area. This will help provide a clean and healthy environment for the alstroemeria to grow.

  2. Improve the soil: Alstroemeria thrives in organic-rich soil. If your soil is sandy or heavy clay, it is beneficial to amend it with organic matter such as compost or well-rotted manure. This will improve drainage and ensure the plants have access to essential nutrients.

  3. Test the soil pH: Alstroemeria prefers a slightly acidic to neutral soil pH between 6.0 and 7.0. You can test the pH of your soil using a soil testing kit available at garden centers or by sending a sample to a soil testing laboratory. If the pH is not within the optimal range, you can adjust it by adding lime to raise the pH or sulfur to lower it.

  4. Dig the planting holes: Use a garden fork or shovel to dig holes that are approximately 8 to 10 inches deep and spaced about 12 to 18 inches apart. Ensure that the holes are wide enough to accommodate the alstroemeria bulbs without crowding them.

Tips For Planting Alstroemeria Bulbs

Alstroemeria can be planted using bulbs, which are underground storage organs. Here are some tips to follow when planting alstroemeria bulbs:

  1. Soak the bulbs: Before planting, soak the alstroemeria bulbs in water for a few hours. This will help rehydrate them and promote healthy growth once planted.

  2. Plant at the right depth: Place the soaked bulbs in the prepared holes, ensuring that the top of the bulb is about 2 to 3 inches below the soil surface. Planting the bulbs too deep may prevent proper growth and flowering.

  3. Space the bulbs properly: Alstroemeria bulbs should be spaced at least 12 to 18 inches apart to provide ample space for the plants to grow and spread.

  4. Orient the bulbs correctly: Alstroemeria bulbs have a pointed end and a flat end. Plant the bulbs with the flat end facing down and the pointed end facing up. This will help the shoots emerge easily from the soil.

  5. Backfill the holes: Gently backfill the holes with the amended soil, ensuring that the bulbs are surrounded by loose soil. Avoid firming the soil too much as this can hinder root establishment.

  6. Water thoroughly: After planting, water the newly planted alstroemeria bulbs thoroughly. This helps settle the soil around the bulbs and provides them with the moisture they need to initiate root growth.

How To Care For Alstroemeria After Planting

Once the alstroemeria bulbs are planted, proper care is crucial for their growth and development. Here are some essential care tips to follow after planting:

  1. Watering: Alstroemeria plants prefer evenly moist soil. Water the plants deeply once a week, providing enough water to penetrate the root zone. However, avoid overwatering, as it can lead to root rot. Monitor the soil moisture level and adjust watering accordingly.

  2. Stake the plants: As the alstroemeria plants grow, they can become top-heavy, and the stems may require support. To prevent stem breakage, insert stakes or plant supports near the plants and tie the stems to provide additional support.

  3. Deadheading: Deadheading, or removing spent flowers, encourages continuous blooming and prevents energy wastage in seed production. Snip off the faded flowers at the base of the stem to promote the growth of new buds.

  4. Pruning: In late fall or early spring, after the foliage has died back, prune the alstroemeria plants to about a few inches above the ground level. Pruning helps rejuvenate the plants and stimulates new growth in the next season.

  5. Pest and disease control: Alstroemeria is generally resistant to pests and diseases. However, it is advisable to monitor the plants for any signs of aphids, snails, or slugs and take appropriate action if necessary. Regularly inspect the leaves and stems for any signs of damage or discoloration.

  6. Dividing the plants: Alstroemeria plants can become crowded over time, leading to reduced flower production. To maintain healthy plants, it is recommended to divide them every three to four years. Lift the plants carefully, divide the clumps into smaller sections, and replant them in well-prepared soil.

Mulching And Fertilizing Alstroemeria

Mulching and fertilizing are essential aspects of alstroemeria care that help promote healthy growth and abundant flowering. Here are some guidelines for mulching and fertilizing alstroemeria:

  1. Mulching: Apply a layer of organic mulch around the alstroemeria plants, leaving a small gap around the stems to prevent rotting. Mulching helps suppress weeds, conserve soil moisture, and regulate soil temperature. Suitable mulch options include shredded bark, straw, or compost.

  2. Fertilizing: Alstroemeria plants benefit from regular feeding with balanced fertilizers. Apply a slow-release granular fertilizer in early spring when new growth emerges. Follow the manufacturer’s instructions for the correct dosage and frequency of application. Additionally, a side dressing of compost or well-rotted manure in the spring can provide additional organic nutrients.

Planting alstroemeria is a rewarding endeavor that brings vibrant color to your garden. By following the steps outlined in this article, you can ensure that your alstroemeria plants have the best chance of thriving. Remember to prepare the planting area, plant the bulbs at the right depth, and provide proper care and maintenance after planting. With a little effort and attention to detail, you can enjoy the beauty of alstroemeria in your garden for years to come.

Choosing The Right Location

Alstroemeria, also known as Peruvian Lily or Lily of the Incas, is a stunning flowering plant that adds vibrant colors to gardens and bouquets. With its long-lasting blooms and striking appearance, it has become a popular choice for many gardeners.

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Before you start planting alstroemeria, it’s important to choose the right location for optimal growth. Alstroemeria thrives in full sun or partial shade, so look for a spot in your garden that receives at least 6 hours of direct sunlight. It’s also important to make sure the soil is well-draining, as alstroemeria does not tolerate standing water.

Preparing The Soil

Alstroemeria prefers a slightly acidic to neutral soil with a pH range of 6.0 to 7.0. Before planting, it’s important to prepare the soil to provide the best growing conditions for your alstroemeria plants. Start by removing any weeds or grass from the planting area. Then, amend the soil with organic matter such as compost or well-rotted manure. This will help improve the soil structure and fertility, ensuring that your alstroemeria plants have access to the nutrients they need for healthy growth.

Planting Alstroemeria

Once you have prepared the soil, it’s time to plant your alstroemeria. Follow these steps to ensure successful planting:

  1. Dig a hole that is approximately twice the size of the alstroemeria’s root ball. The hole should be deep enough that the top of the root ball is level with the surrounding soil.

  2. Gently remove the alstroemeria plant from its container and place it in the hole. Make sure the plant is centered and upright.

  3. Backfill the hole with soil, gently firming it around the roots. Be careful not to over-compact the soil, as this can restrict root growth.

  4. Water the newly planted alstroemeria thoroughly to settle the soil and eliminate any air pockets around the roots.

  5. Apply a layer of mulch around the base of the plant to help conserve moisture and suppress weed growth. Keep the mulch a few inches away from the stems to prevent rot.

Protecting Alstroemeria From Pests And Diseases

While alstroemeria plants are generally hardy, they can be susceptible to certain pests and diseases. Here are some tips to help protect your alstroemeria from common issues:


  • Slugs and snails: These common garden pests can cause damage to alstroemeria leaves and flowers. To deter slugs and snails, you can set up beer traps or use organic slug pellets. Handpicking them off the plants in the early morning or evening can also be an effective method.

  • Aphids: These small, soft-bodied insects can cluster on the stems and buds of alstroemeria plants and cause stunted growth. Spray the infested plants with a strong jet of water to dislodge the aphids or use insecticidal soap to control their population.

  • Spider mites: These tiny pests can cause yellowing and bronze-colored foliage. If you notice signs of spider mite infestation, you can wash the plants with a strong jet of water or apply horticultural oil to suffocate them.


  • Botrytis blight: This fungal disease, also known as gray mold, can cause rotting of alstroemeria flowers and stems. To prevent Botrytis blight, make sure there is adequate air circulation around your plants by spacing them properly. Remove any dead or decaying plant material promptly and avoid overhead watering.

  • Root rot: Alstroemeria is susceptible to root rot if the soil is constantly wet. To prevent root rot, ensure proper drainage by amending the soil with organic matter and avoid over-watering. If you notice signs of root rot, such as wilting leaves or dark, slimy roots, it may be necessary to remove and replace the affected plants.

  • Viral diseases: Alstroemeria can be affected by various viral diseases, such as mosaic virus or leaf curl virus. There is no cure for viral diseases, so prevention is key. Avoid planting alstroemeria near infected plants and make sure to purchase from reputable sources.

Regularly inspect your alstroemeria plants for signs of pests or diseases, and take appropriate action if any issues arise. Prompt identification and treatment can help ensure the health and vitality of your plants.

Pruning And Deadheading Alstroemeria For Healthy Growth

Pruning and deadheading alstroemeria on a regular basis is essential for maintaining healthy growth and prolonging the blooming period. Here’s what you need to know:


Pruning alstroemeria involves cutting back the foliage and stems to promote new growth and prevent overcrowding. It’s best to prune alstroemeria in late winter or early spring before new growth begins. Follow these steps:

  1. Using sharp pruning shears or scissors, cut back the stems to a height of 2-3 inches from the ground. This will encourage new shoots to emerge.

  2. Remove any dead, diseased, or damaged stems by cutting them at their base.

  3. Thin out any overcrowded areas by cutting back some of the stems at different heights. This will allow for better air circulation and minimize the risk of disease.

  4. Dispose of the pruned material properly to prevent the spread of pests or diseases.


Deadheading alstroemeria involves removing spent flowers to encourage the production of new blooms. This not only keeps the plant looking tidy but also directs energy towards new growth. Follow these steps for deadheading:

  1. Wait until the flowers have faded and started to wither.

  2. Follow the flower stem down to where it meets the main stalk or lateral bud. Using your thumb and forefinger, pinch or snap off the faded flower stem just above the bud.

  3. Dispose of the dead flowers and stems to prevent the accumulation of decaying material, which can attract pests and diseases.

Regularly pruning and deadheading alstroemeria will help maintain a compact and healthy plant, as well as prolong the blooming period, resulting in a spectacular display of flowers.

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How To Propagate Alstroemeria

If you’re interested in expanding your alstroemeria collection or sharing the beauty of these plants with others, propagating alstroemeria can be a rewarding and cost-effective way to do so. Alstroemeria can be propagated through division or by collecting and sowing seeds.


Dividing alstroemeria involves separating the plant into smaller sections, each with its own set of roots, shoots, and buds. Follow these steps to propagate alstroemeria through division:

  1. Choose a well-established alstroemeria plant that has been in the ground for a few years and has developed multiple clumps of growth.

  2. In early spring, when new growth starts to emerge, carefully dig up the plant, taking care not to damage the roots.

  3. Gently shake off excess soil to expose the clumps of growth.

  4. Using a sharp knife, divide the clumps into smaller sections, ensuring that each section has a healthy set of roots and at least one shoot or bud.

  5. Plant the divided sections in prepared soil, following the planting instructions mentioned earlier in this article.

  6. Water the newly planted divisions thoroughly and provide them with the same care and maintenance as mature alstroemeria plants.

Seed Propagation

Collecting and sowing alstroemeria seeds can be a rewarding but time-consuming process. Here’s how you can propagate alstroemeria from seeds:

  1. Allow the flowers to fade and form seed pods. The seed pods will be green and swollen when they are ready to be harvested.

  2. Wait until the seed pods turn brown and start to split open naturally. This indicates that the seeds are mature and ready for collection.

  3. Gently collect the seeds by cutting or twisting the ripe seed pods.

  4. Place the seeds on a paper towel or tray and allow them to dry for a few days. Make sure the seeds are fully dry before storing or sowing them.

  5. Fill a seed tray or small pots with a well-draining potting mix.

  6. Sow the alstroemeria seeds on the surface of the soil, gently pressing them down to ensure good soil contact.

  7. Cover the seeds with a thin layer of vermiculite or fine soil, as alstroemeria seeds require light for germination.

  8. Water the seeds lightly using a misting spray or a watering can with a fine rose attachment. Keep the soil consistently moist but not waterlogged.

  9. Place the seed tray or pots in a warm, bright location but out of direct sunlight.

  10. Alstroemeria seeds can take several weeks to months to germinate. Once the seedlings have developed two or three true leaves, they can be transplanted into individual pots or the garden.

Be patient when propagating alstroemeria from seeds, as germination can be a slow process. However, with time and proper care, you will be rewarded with new alstroemeria plants ready to grace your garden.

Common Problems And Troubleshooting Tips For Alstroemeria

Despite their resilience, alstroemeria plants can sometimes face certain challenges. Understanding and addressing these common problems promptly can help ensure the health and vitality of your plants.

Yellowing Leaves

If you notice yellowing leaves on your alstroemeria plants, it could be a sign of nutrient deficiency or overwatering. To address this issue, ensure that your alstroemeria is receiving enough sunlight and that the soil is well-draining. Additionally, consider fertilizing your plants with a balanced fertilizer to provide the necessary nutrients.

Stunted Growth Or Lack Of Blooms

If your alstroemeria is not showing signs of growth or is not producing blooms, it may be due to insufficient sunlight or overcrowding. Alstroemeria plants require at least 6 hours of direct sunlight to thrive, so make sure they are receiving adequate light. Additionally, thin out any overcrowded areas to improve air circulation and promote better growth.

Wilting Or Drooping

Wilting or drooping of alstroemeria plants can be indicative of underwatering or root rot. Ensure that you are providing enough water to keep the soil consistently moist but not waterlogged. If you suspect root rot, check the roots for signs of decay and take appropriate action, which may include adjusting the watering schedule or replacing affected plants.

Lack Of Flowers

If your alstroemeria is not producing flowers, it may be due to several factors, including insufficient sunlight, inadequate nutrients, or pruning at the wrong time. Ensure that your plants are receiving enough sunlight, fertilize them regularly with a balanced fertilizer, and avoid heavy pruning during the growing season. These steps will help encourage flower production.

Invasive Spread

Alstroemeria can be a vigorous grower and has the potential to spread rapidly if not managed properly. To prevent invasive spread, regularly monitor your alstroemeria plants and remove any new shoots that appear outside the desired growing area. Additionally, consider installing a physical barrier, such as a root barrier, to control the plant’s growth.


Alstroemeria is a beautiful and versatile plant that can add a splash of color to any garden. By following the guidelines outlined in this article, you can successfully plant and care for alstroemeria, ensuring healthy growth and abundant blooms. Remember to choose the right location, prepare the soil properly, protect the plants from pests and diseases, prune and deadhead regularly, and propagate if desired. With a little bit of effort and care, you can enjoy the beauty of alstroemeria for years to come.


What Type Of Soil Is Best For Planting Alstroemeria?

Alstroemeria prefers well-draining, rich soil that is slightly acidic (pH level of 6.0 to 6.5).

When Is The Best Time To Plant Alstroemeria?

The best time to plant alstroemeria is in the early spring, after the threat of frost has passed.

How Much Sun Does Alstroemeria Need?

Alstroemeria thrives in full sun or partial shade, but it is important to protect the roots from direct sunlight.

How Deep Should I Plant Alstroemeria Bulbs?

Alstroemeria bulbs should be planted 4 to 6 inches deep, with the pointed end facing up.

How Often Should I Water Newly Planted Alstroemeria?

Alstroemeria needs regular watering, about 1 inch per week, to establish strong roots. Be careful not to overwater, as the bulbs can rot.