How to Grow Alstroemeria in Pots?

Introduction

Alstroemeria is also known as Peruvian lily or lily of the Incas. It is a popular flower among gardeners for its beautiful blooms and long vase life. You can grow alstroemeria in containers well. It is a great addition to your patio, balcony or indoor space.

Selecting the Right Alstroemeria Varieties

Popular Alstroemeria Varieties Suitable for Container Gardening

Princess Lilies (Alstroemeria Princess Series): These varieties are known for their compact growth and vibrant colors. They are perfect for small pots. They also have a long blooming season, from spring until fall.

Inticancha Series: These alstroemeria varieties are dwarf in size. They are ideal for hanging baskets or small containers. They come in a variety of colors, including pink, yellow, and orange.

Inca Ice (Alstroemeria Inca Collection): This series features varieties with unique striped petals and striking colors. They are also compact in size, making them suitable for containers of all sizes.

Factors to Consider When Choosing Alstroemeria for Pots

Size: Some alstroemeria varieties are more compact than others. So it's important to consider the ultimate size of your plant when choosing one for a pot.

Watering Needs: Some alstroemeria varieties are more drought-tolerant than others. If you tend to forget about watering your plants, opt for a variety that can handle a little neglect.

Climate: Alstroemeria plants are hardy in USDA zones 6-10. If your area has harsh winters, choose a variety that is suitable for your climate.

Choosing the Right Pot and Soil

Container Size for Alstroemeria

Alstroemerias have deep root systems. So choose an alstroemeria pot that allows for adequate root growth. Generally, a pot with a diameter of 8-12 inches is recommended for one plant. For example, 2 gallon pots or 3 gallon pots for plants. For multiple plants, opt for a large container with 12-16 inches in diameter. For example, 5 gallon flower pots or 7 gallon pots.

Pot Materials for Optimal Drainage

Alstroemerias do not like to sit in waterlogged soil. So it's important to choose a pot material that allows for proper drainage. Terra cotta and ceramic pots are ideal. Because they are porous and allow excess water to evaporate. You can also use plastic pots. But make sure they have sufficient drainage holes.

Choosing the Right Soil Mix

Alstroemerias prefer well-draining, slightly acidic soil with a pH of 6-7. You can combine equal parts peat moss, perlite, and compost. This mix will provide adequate drainage while also retaining enough moisture for the plants to thrive.

How to Grow Alstroemeria in Pots?

How to Plant Alstroemeria Tubers or Plants in Containers?

Choose a pot with good drainage holes. Fill the pot with well-draining soil. For example, a mix of potting soil and perlite. If planting bulbs, place them about 4 inches deep in the soil. Make sure the pointed end is facing up.

If using potted plants, gently remove them from plastic flower pots. Plant them at the same depth as they were in the original pot. Gently water the soil to help settle it around the bulbs or plants.

Proper Spacing and Depth for Planting

When growing alstroemeria in pots, give each plant enough space to grow and thrive. If planting multiple bulbs or plants in one pot, make sure to space them at least 6 inches apart. This will allow for proper air circulation and prevent overcrowding.

As for depth, you should plant alstroemeria bulbs about 4 inches deep. While you should plant potted alstroemeria at the same depth as they were in their original containers.

V. Alstroemeria Plant Care

Sunlight Requirements

Alstroemeria plants in pots need 6-8 hours of sunlight per day. You can place the pot in an area with morning sun and partial shade during the afternoon. This will provide the plant with enough sunlight to thrive without exposing it to direct, harsh rays.

Watering Routine for Potted Alstroemeria

Alstroemeria in a pot prefers well-drained soil. They don't like to become waterlogged. You should water them when the top inch of soil feels dry. But be sure not to let the soil completely dry out either. During hot summer months, you may need to water your alstroemeria more frequently.

Fertilizer and Application Frequency

Look for a balanced fertilizer with equal parts nitrogen, phosphorus, and potassium. This will promote healthy foliage growth as well as flowering. The frequency of fertilization will depend on the type of fertilizer. You can apply a slow-release fertilizer once every few months. While you may need to apply liquid fertilizer more frequently.

Supporting and Staking

Choosing Suitable Stakes or Cages for Support

When choosing stakes or cages for your alstroemeria plants, consider the height and weight of the plant. Choose stakes that are 2-3 feet taller than the expected height of the plant. The stakes should also be sturdy enough to support the weight of the plant and its blooms. You can also use cages or trellises for support, especially for taller alstroemeria varieties.

Proper Staking Techniques to Prevent Breakage

To stake your alstroemeria plant properly, place the stake or cage in the ground near the base of the plant. Gently tie the stem to the stake using soft plant ties or twine. Make sure not to tie it too tightly.

As the plant grows, continue to loosely tie the stem to the stake at intervals of 6-8 inches. This will provide support without restricting growth. If using a cage or trellis, gently weave the stems through the openings for support.

Proper staking techniques can also prevent breakage during strong winds or heavy rain. Make sure to check the staking periodically and adjust as needed as the plant grows.

Dealing with Pests and Diseases

Common Pests and Diseases

Aphids, slugs, snails, spider mites, and thrips are common pests. Root rot, bacterial leaf spot, and powdery mildew are common diseases.

Organic and Chemical Methods for Pest Control

When dealing with pests, consider using organic methods first before turning to chemical solutions. You can introduce natural predators into your garden. For example, ladybugs and lacewings. You can also use neem oil or insecticidal soap to deter these pests.

For spider mites and thrips, you may need to resort to chemical solutions. For example, pyrethrum-based sprays or horticultural oils. However, you should use these sparingly. Only as a last resort to avoid harming beneficial insects.

To prevent diseases, maintain proper plant hygiene by removing any dead or infected foliage. You can also use organic fungicides to control bacterial leaf spot and powdery mildew. For example, copper-based sprays.

Pruning and Deadheading

Timing and Frequency of Pruning

You should prune in late winter or early spring before new growth begins. You will have a better view of the plant's structure. Prune alstroemeria every year to maintain its shape and promote new growth.

You should deadhead throughout the growing season. As soon as flowers start to fade and wilt, you should remove them to encourage the plant to produce more blooms.

Pruning and Deadheading

Use sharp, clean pruning shears or scissors. Identify any dead, damaged, or diseased stems. Remove them at their base using a cutting motion. Trim back any overgrown or crossing branches to maintain a tidy shape.

Make the cut just above a node or bud. For deadheading, cut the stem just above a set of healthy leaves or buds. Dispose of all pruned and deadheaded material to avoid spreading any diseases.

Overwintering Alstroemeria in Pots

Protecting Potted Alstroemeria from Frost

Location: Before the first frost, move your potted alstroemeria to a sheltered spot. For example, a garage, shed or covered porch.

Insulation: Cover the pot with a thick layer of mulch, straw or leaves. This insulates the roots and protects them from freezing temperatures.

Wrap: For extra protection, you can wrap the pot in bubble wrap or burlap.

Bring Indoors: If growing peruvian lilies in pots, consider bringing them indoors for the winter months. Place it in a cool room with plenty of sunlight.

Alstroemeria Winter Care

Watering: Alstroemeria in pots over winter require less water. But do not let the soil dry out completely.

Fertilizing: Do not fertilize your potted alstroemeria during winter. It is dormant and does not need extra nutrients.

Pruning: In late winter or early spring, remove any dead or damaged foliage. Cut back the stems to encourage new growth.

Ventilation: If you are overwintering your alstroemeria indoors, make sure to provide proper ventilation to prevent diseases.

Conclusion

We have covered the necessary steps for successfully growing alstroemeria in pots. By following these guidelines, you can add a beautiful and versatile flower to your container garden.