Container Garden Basics
Apr 27th, 2010 by Hazel
This week’s guest post comes from famed Billy Goodnick. Billy Goodnick is a landscape architect, educator, garden writer, TV personality and rock and roll drummer living in the enviable Left Coast paradise of Santa Barbara. His philosophy embraces the idea the every garden should be beautiful, functional and sustainable.
My very first container garden was a water-filled Hellman’s mayonaisse jar topped with a yam impaled on toothpicks. Within a few weeks, a veritable jungle was seeking the sun and enveloping on the kitchen curtains. Nothing succeeds like success.
For some, a container garden might be no more than an out-of-control spud, or a dwarf peach tree and a cloud of sweet alyssum spilling from a half-barrel. For those with more ambition, a container garden starts with a bold burst of exotic plants in flambouyantly glazed pots. Regardless of where you are on the container garden continuum, there are a few concepts and techniques that apply across the board.
You don’t have to be an apartment dweller with a postage-stamp balcony to appreciate the value of container gardening.
- Flexibility: Container gardens allow you to provide exactly the right kind of soil in each pot, letting you to mix and match plants that you’d never consider putting together in the ground.
- Practicality: Growing plants in pots can satisfy functional as well as aesthetic needs. Use potted plants as a privacy hedge, raise orchids to animate your favorite vase, or start an uban farm with fruit trees, vegetables and herbs. (With any luck, your eggplant will lay a few eggs.)
- Portability: Pots can be moved around for optimal sunlight, or to protect sensitive plants from the elements. If you live in a harsh winter climate, you can easily move tender plants to a warmer location, then let them out to play in the spring sunshine.
- Splashy: Container gardens make eye-catching focal points, especially when there’s a well-conceived interplay between the features of the plant and the color, texture and form of the vessel. Debra Lee Baldwin’s book, Succulent Container Gardens (Timber Press), serves up dazzling images and a host of design ideas, as well as a clear explanation of design principles that apply to every type of plant and pot combination.
Here are a few basic considerations for container plants:
- With the exception of water-loving bog gardens, a drainage hole at the bottom of the pot is a must. Plants need air in the soil and without a drain hole the planting medium will turn anaerobic, eventually killing the plant. Loosely cover the hole with a rock, broken piece of pottery or wire mesh to keep soil from washing out.
- Right plant / right soil is the rule. Ask a trained professional about the best soil mix for the plants you’ve chosen. You’ll want to know whether the plants prefer a rich, moisture-holding root medium high in leaf mold and sphagnum moss, or in the case of succulents and many Mediterranean varieties, a well-aerated potting mix with lots of sand, pumice or perlite. Do not use soil from your garden, which tends to be too heavy and becomes compacted over time.
- Size matters. Research the mature size of each plant to estimate how big your container should be—plants with lots of biomass above ground produce hefty root systems for water and nutrient uptake.
Thriller + Filler + Spiller = Killer Container Combo. A thriller is an animated, spiky plant that excites the eye with strong vertical lines – think grasses like Miscanthus, heavenly bamboo (Nandina species) or tropically luscious Canna lily. The filler is a mounding plant with interesting foliage or flowers that softens the effect of the thriller, like lavender, felicia daisy or chartreuse-colored Euphorbia characias. You’ve probably figured out spiller, but just in case, these are plants that pour over the rim of the pot, and include ground covers like succulent-leafed stonecrop, silver dichondra and periwinkle.
Container gardens are usually short-lived. Roots will eventually congest the pot and deplete the nutrients in the soil. Though many plants can be root-pruned and put back in the same container with fresh soil, some gardeners see the inevitable waning of each container garden as an opportunity to dream up new ideas, visit their local nursery and start afresh.
I can just hear you: “Darn, another Saturday morning strolling through my favorite garden center.”
How ever will you cope?
See Billy Goodnick’s design gallery at his website and visit his Cool Green Gardens blog at Fine Gardening.com. His Taking Out the Grass rock ‘n roll music video is at YouTube.com and Garden Wise Guys TV show at SBWater.org.








