more I learn about sustainable living, the more convinced I become that
everyone can grow fresh food at home. Not everyone can have the same
1,500 square feet of garden space that we have here at Arcadia Farms,
but even renters and apartment dwellers can grow a significant amount of
food in a container garden. Container gardening is also a great place
for reluctant homeowners to start. If you’re convinced that growing some
of your own food would be beneficial but are hesitant to rent a
rototiller and start digging up your backyard, consider starting with a
container garden. Today I want to share some tips with you on how to
make your container garden a successful one.
For the most part, growing veggies in containers is the same as
growing them directly in the ground or a raised bed. One obvious
difference is that you have less soil to work with. With less soil,
you’ll need to pay close attention to your plants nutritional needs
(small space means soil nutrients can be used up more readily). You’ll
also need to keep a close eye on moisture (it’s easy to over or
underwater a container garden). Let’s talk about those two factors – and
a few other things you should keep in mind.
1. Give Your Plants Nutrients
To make sure your plants get the nutrients they need, I recommend
starting with good quality compost. Because the soil in your container
is more likely to become compacted over time, mixing in some vermiculite would
also be preferable. There are also many ready-mixed organic garden
soils that provide a good supply of nutrients while still being
After your plants are established (are showing their true leaves),
you’ll want to give them with a natural fertilizer. Good choices are
fish emulsion (diluted in water per the bottle’s directions) or an
organic soil amendment (such as Jobes organic tomato and vegetable fertilizer.)
Fertilize every 1 to 2 weeks after your plants begin to show their true
leaves. Here’s another idea for fertilizing your container: A whole,
in-shell, raw egg. Warning: I’ve never actually tried this myself,
rather, I found the idea on Pinterest. The idea is that the egg will
decompose slowly and add nutrients to the soil as it does.
If you intend to use the same containers over and over again, there
are a couple of things to keep in mind when it comes to soil fertility.
First, you should add new organic matter every year. Fall is a good time
to do this so that the materials have time to breakdown over the
winter. You can accomplish this by adding grass clippings, shredded
leaves, table scraps, store-bought or homemade compost. The second thing
to keep in mind has to do with crop rotation. Just like an in-ground
garden, plants of the same family ‘eat’ certain nutrients in the soil.
If you continue to plant the same type of plant in the same container,
over time the nutrients necessary for the healthy growth of that plant
will be depleted. To avoid this issue, rotate similarly sized containers
through various crops of different plant families. If your season and
container are conducive to this, consider sowing some manner of
nitrogen-fixing crop after your summer veggies are spent. This cover
crop will keep weeds from inhabiting your container over the cooler
months and will also add nitrogen to the soil. For a list of
nitrogen-fixing cover crops, click here. In general, any legume will do the trick, such as peas and beans.
You can also add nutrients to your container by adding a layer of
woody debris – such as broken branches, twigs or even small logs – to
the bottom of your container. As the wood breaks down it adds nutrients
to the soil, among other benefits.
2. Manage Moisture
Another benefit of adding woody debris to your container is that it
helps to retain moisture. As wood breaks down it acts like a sponge,
attracting water and then releasing it slowly into the surrounding soil
as needed. This is the primary function of wood in hugelkultur
– a system where raised bed gardens are built over piles of well-rotted
(spongy) wood to help retain moisture and reduce (or eliminate) the
need for irrigation. You can put this hugelkultur benefit to work for
you on a container-sized scale. I even read that one blogger found
better success with logs placed vertically than horizontally,
essentially because the grain of the log acted like a straw for moisture
to move up and down. (As soon as I can re-find his post I will link to
it here!). Keep the following tips in mind when selecting wood for your
- Avoid wood so large that will interfere with the growth of root crops (i.e. carrots)
- Avoid treated lumber
- Avoid wood from plants that contain natural herbicides, such as black walnut
- The more rotten the wood, the better
- Fresh wood that contains a significant amount of tannin (i.e. pine)
should be avoided until the wood is older (6 months old at earliest,
just my opinion)
Don’t feel like you need to use a giant log in your 12” pot – just a
handful of fallen sticks from the yard will help! These sticks will also
help provide some air pockets for drainage at the bottom of the
container which is of critical importance in container planting. (You
don’t want to drown the roots of your plant – they need air too!)
Because containers can dry out easily, try mulching the top to keep
the soil cool and water from evaporating. If your container is large
enough, you may consider using an olla to reduce the amount of time you spend on watering.
And lastly, because moisture management is so important in container
gardening, you’ll want to invest in a moisture meter. For $5-$10 you can
find something like this (image above) which takes the guesswork out
of whether or not to water – just stick the probes into the soil and
you’ll find out how much moisture is already present.
3. Choose the Right Container (Size, Shape & Materials)
When it comes to container gardening, bigger is generally better.
That’s because you have more moisture-retaining, nutrient-rich soil to
work with. But that doesn’t mean a small container can’t be just as
successful! In Mel Brook’s Square Foot Gardening method,
nearly everything can be grown in soil that is just 6” deep. (Root
crops will need a minimum of 12”.) The necessary width of your container
will depend on what you’re growing – tomato plants do best with at
least 2 square feet of space while one head of lettuce requires only
12.5% of a single square foot. Use these plant spacing rules as a guideline for container planting.
Tall or vining crops (such as cucumbers and tomatoes) will need a
trellis. Does your container have enough space to hold both your plant
and your trellis? Or will you use an external trellis near the container
such as a fence or a porch railing? Here are some ideas for
container-gardening trellises. Click on the image for more info and
Also consider the material makeup of your container. You’ll want to
avoid containers from treated materials, ones that may leach chemicals
into your soil or that previously held harmful chemicals/materials.
4. Location, Location, Location
This isn’t real estate, but location is still pretty darn important!
The closer your containers are to the house, the less likely you’ll be
to neglect them. Plus if you have easy access to your cherry tomatoes
and snap beans, you (and your family) will be more likely to grab a few
for a snack or dinner than if you have to wander far from the back door.
When choosing a location for your container garden, sunlight is
another huge consideration. In general, you’re looking for a location
with as much sun as possible. However some plants benefit from a little
shade. To determine the best location for each crop, check out the info
on the back of the seed packet. Once you’ve identified your shade-loving
plants and your sun-loving plants, you can devise a plan for each
group. You may even be able to use your large sun-loving plants to
provide shade to your shade-loving plants. Shade-lovers staged on the
east side of sun-lovers will get plenty of morning sun but will be
shielded from harsher afternoon rays.
And when you place your containers, keep pests in mind! Do you have
deer nearby? You may want to keep your containers in a fenced area. Is
the sunniest spot in the yard also in the path of your pets and kids –
you’ll need a plan to keep them from being toppled over. Another way to
keep bunnies and other critters away from your veggies is to interplant
smelly things to deter them – chives, garlic, marigolds and rosemary are
As you ponder how to incorporate these tips into your own container
garden, click here to take a peep at some of these neato ideas for inspiration.
I’m working right now on a custom container gardening plan for growing
lots of things like tomatoes, cucumbers, peppers, carrots, potatoes and
herbs. I hope to share that with you soon!
Did you enjoy this article? Visit www.arcadia-farms.net for more info on eating healthy, saving money and buying locally.
Posted by Katie
@ 01:07 PM EDT