what to fill a large planter with

3 min read 26-12-2024

Large planters offer a fantastic opportunity to create stunning focal points in your garden or home. But filling them effectively requires careful consideration. This comprehensive guide will walk you through the process, offering ideas for various styles and needs. Choosing the right filler depends on your aesthetic goals, the planter's location, and your desired level of maintenance.

Choosing the Right Filler: Plants, Soil & More

The key to a successful large planter is a well-thought-out combination of elements. We'll break down the best options for each component:

1. The Base Layer: Drainage and Stability

Before adding any plants, ensure proper drainage. A large planter without drainage can easily become waterlogged, leading to root rot and plant death.

Drainage Layer: Start with a layer of gravel, broken pottery, or even packing peanuts at the bottom. This layer prevents water from accumulating at the base. Aim for a 2-3 inch layer, depending on the planter's depth.
Weed Barrier (Optional): A landscape fabric can help prevent weeds from growing up through the drainage layer and into your planter. This is particularly useful in larger containers.

2. Building the Foundation: The Soil Mix

Avoid using regular garden soil in large containers. It's too heavy and tends to compact, restricting root growth and air circulation. Instead, opt for a well-draining potting mix.

Potting Mix: Choose a high-quality potting mix formulated for containers. These mixes are lighter and retain moisture better than garden soil. Look for mixes that specify their suitability for large containers. Adding perlite or vermiculite can further improve drainage and aeration.

3. Selecting Your Plants: Size Matters

The size of your planter dictates the size and number of plants you can use. Avoid overcrowding, which can stifle growth and lead to disease.

Thriller, Filler, Spiller Method: This classic landscaping technique helps you create a balanced and visually appealing arrangement. The "thriller" is a tall, striking plant; the "filler" plants fill in the middle; and the "spiller" plants cascade over the edges.
Plant Selection: Consider the planter's location (sun, shade) and your local climate when choosing plants. Research plant growth habits to ensure they'll thrive in the space you've allocated.
Mature Size: Always check the mature size of the plants you choose to avoid overcrowding in the future.

What Types of Plants Should I Choose?

Annuals: These plants complete their life cycle in one growing season, providing vibrant blooms but needing replacement each year. Perfect for quick color changes.
Perennials: These plants come back year after year, providing long-term beauty but requiring less frequent replacement. Choose perennials suited to your climate and soil conditions.
Shrubs: Smaller shrubs can add structure and texture, especially in larger planters. Choose dwarf varieties to suit the container size.

4. Adding the Finishing Touches

Once your plants are in place, you can add some finishing touches to enhance the overall aesthetic.

Mulch: Adding a layer of mulch on top of the soil helps retain moisture, suppress weeds, and improve the overall appearance of the planter. Use organic mulches like wood chips or shredded bark.
Decorative Elements: Consider adding decorative stones, pebbles, or even small sculptures to complement your plants and enhance the visual appeal.

Frequently Asked Questions about Filling Large Planters

How often should I water a large planter?

Watering frequency depends on several factors, including plant type, weather, and the type of potting mix used. Check the soil moisture regularly by sticking your finger a couple of inches into the soil. Water thoroughly when the top inch or two feels dry.

What are the best plants for large planters?

The best plants depend on your climate, sunlight conditions, and personal preference. However, some excellent choices for large planters include:

Hydrangeas: Beautiful blooms in various colors.
Lavender: Fragrant and drought-tolerant.
Boxwood: Provides structure and year-round greenery.
Hostas: Shade-loving plants with attractive foliage.

Can I use regular garden soil in a large planter?

No, regular garden soil is not ideal for large planters. It's too heavy, compacts easily, and can lead to poor drainage and root rot. Use a well-draining potting mix instead.

Conclusion: Creating a Stunning Display

Filling a large planter successfully involves careful planning and execution. By following these guidelines, you can create a vibrant and beautiful display that will be the envy of your neighbors. Remember to choose plants appropriate for your location and climate, prioritize proper drainage, and add finishing touches to enhance the overall aesthetic. Enjoy the process of creating a stunning focal point for your home or garden!