Part of the magnetism of gardening is the opportunity for creative expression. Why bother with the same boring terra cotta pot or hanging basket when you can grow mother-in-law’s tongue out of an old toilet or a medley of herbs in a discarded wooden crate? Okay, so maybe you’re not too keen on showcasing your prized fern collection in a gleaming white porcelain throne, but consider creative container gardening as an opportunity to spice up your landscape and get those creative juices flowing!
By definition, container gardening refers to large containers planted with a mixture of plants, and they serve as focal points by elevating plants and making them more prominent in the landscape than a similar grouping of plants at ground level. It is necessary to consider the right plant for the right place when picking plants for your containers, same as you would do in the garden. Be sure to choose plants with similar needs (i.e. light, water and fertilizer). Also be conscious of growth rates and mature size, so that the containers match the plants’ potential. Finally, consider your desired maintenance. Annuals usually stay under control but need to be replaced seasonally, whereas perennials may need occasional pruning but infrequent replacement.
Potting Soil
There are a variety of potting soils on the market, depending on the type of plant you’re growing; specialty soils are available for cacti and succulents, orchids, and more. The key is to use a potting soil that can absorb and retain moisture, while also allowing water to drain. A general lightweight potting soil with peat moss (for moisture retention) and perlite (for drainage) is suitable for most containers and most plants. If working with very large or very deep containers, substitute some of the potting soil with a light weight filler material, such as Styrofoam™, empty plastic bottles, or lava rocks. In this way, you don’t spend as much in potting soil, the plant roots are not affected, and the container remains light enough to move around, if necessary.
Planting Procedure
Container gardening involves placing plants to determine the desired arrangement, so after filling the container with soil, but before digging, set the plants in their original pots on top of the soil and step back to see the bigger picture. Arrange the plants as many times as necessary to get the look you want, then dig your holes. Similar to planting in the garden, you have to ensure that the hole is large enough and that the plant is not installed too deep or too shallow. However, keep in mind that the finer your potting soil, the more it will settle once watered. The final level of potting soil should be about 2 inches below the rim of the container, and the top-most root of each plant should be level with the surface of the potting soil. If the plants in the container are small and not yet mature, add a layer of mulch on top of the soil to protect the roots and keep the soil from drying out too quickly. As the plants fill in, the soil will be better covered and mulch may not be needed.
Drainage
Although it may seem like common sense, be sure your container has at least one drainage hole. Additionally, make sure that the drainage water has somewhere to go, since water that drains onto a patio or deck may be hazardous and unattractive. If it is not possible to create a drainage hole in a chosen container, then adjust your potting arrangement so that the plants fit into a smaller container (with drainage) that is then placed in the larger container. You will still get the benefit of the container design or style, and your plants will not drown.
Irrigation and Maintenance
Probably the most limiting factor to container gardening is irrigation. Potting soil, because of limited space in a container, may dry out quickly without regular rainfall or supplemental irrigation. It is imperative that you observe your potted plants for signs of wilt and don’t allow them to get to the point of no return. Immediately after planting, the initial watering may quickly run through the soil and out the container’s drainage holebecause of all the pore spaces in the potting mix. Give the soil a few minutes to settle, that water again, slowly, to allow the soil to absorb as much moisture as possible. Most container-grown plants will need watering at least 3 times a week, unlike their counterparts in the landscape, which may go as many as 7 to 10 days in-between watering. It is a good idea to invest in a low volume, micro-irrigation system, specifically designed for potted plants. The system can run directly off an outdoor spigot or hose, and you can place a battery-operated timer on the system for scheduled watering. Keep in mind that plant water requirements will change with season, rainfall, growth stage, and plant size. Other maintenance issues include weeding and pruning. Until young plants fill in to cover the soil in the container, weeds will regularly rear their ugly heads, distracting from the beauty and form of your container garden. Be diligent and hand pull weeds as much as possible, since many herbicides may also injure or kill your desired plants. As some plants grow and fill in, they may not keep their original shape in the container, ultimately changing the overall look you were trying to achieve. Prune selectively, so that you’re not spending inordinate amounts of time creating the “Disney look,” but you’re still shaping plants in a natural form that complement the rest of the container and/or the surrounding landscape design.
Other Tips
Just as you would choose plants for the landscape based on their size relative to the structures around them, it is important to choose containers that are large enough to fit all your desired plants and will not “disappear” into the surrounding environment. Even though larger is better, very large containers may put a significant dent in your pocketbook. For the same impact, create a grouping of containers that are similar in shape, material, or color.
If you tend to lean more toward the eclectic side of life, a hodgepodge of containers may just suit your fancy. By choosing the right plants to create the right effect, a diversity of wild and wacky containers will really make a statement!
Use your containers as focal points in the landscape by selectively placing them throughout the yard and designing plant beds and pathways around them. Increase the dramatic effect of a small container by placing it on a pedestal or securing it at eye level against a wall or fence.
Finally, choose plants with brightly colored blooms or foliage for containers in the shade or along a garden border. They will help to define the space, while drawing the eye towards the area in which they are placed. A slightly modified version of a quote from Proverbs says, “Don’t plant more garden than you can care for,” and this is sage advice. But remember that container gardens, if done right, can provide you with color, style, impact and versatility throughout the landscape and throughout the year.
You’re only limited by your own imagination!
Consider Reading:- Add Style to the Garden with Containers