Growing Clivia in Cold Climates
Care and Culture of Clivias
Clivia as Houseplants
In our climates, Clivia are of necessity houseplants in the colder months.
Indoors, they should be located where they will get morning sun or bright,
indirect light. Never place your clivia in an unshaded South or West window,
in the Northern Hemisphere. In the Southern Hemisphere, avoid North facing
and West facing windows if they are unshaded.
Clivia on the Patio or Deck
In the warmer months, it is good for Clivia plants to go outdoors. There
are only a couple of points to keep in mind when deciding where to set
your Clivia outdoors.
First, Clivia will burn in full direct sun, even in our more northern
latitudes. So pick a spot with dappled shade from at least midday on.
The morning sun and the very late afternoon sunlight will probably not
burn the foliage.
Second, where there is abundant rainfall during the period when the clivia
is outdoors, you may have to protect the plant from excess moisture. While
an occasional rain is very good for the plant, heavy or prolonged periods
of rain will increase the danger of rot. A good potting mix can compensate
for this somewhat.
Potting Mixtures
In the wild, Clivia grow naturally in forests. The plants grow on the
ground under the trees, with their roots running through the natural litter
on the floor of the forest. This provides them with abundant air around
their roots and with a good organic mulch to grow through. Wild clivia
do not as a rule send their roots down into the soil. In containers, your
clivia will need to grow roots throughout the potting mixture.
A good time to repot or pot up clivias is in the spring, when they are
just starting to grow vigorously again. You want them to be already starting
to grow, so that their roots will re-establish as quickly as possible.
Some expert clivia growers plant them in orchid bark mixes. Depending
on whether you are just potting up a new seedling or you are repotting
a mature plant, you can use either medium or coarse orchid mixes. Plant
the roots spread out through the container and fill well around them with
the orchid mix.
We prefer to use a gritty medium, composed of a peat-based soilless potting
mix, sand, and granite chick starter grit. We combine them in roughly
equal parts by volume, but varying toward more of the peat component in
many cases. To fill a one-gallon container, use about 4 to 5 cups of each
material. Mix them thoroughly, stirring them in a bucket with a clean
trowel, for instance. We mix our potting media in 5-gallon buckets, never
in the plant container itself.
Watering
In Nature, clivias are found mainly in parts of South Africa that receive
all their rainfall in summer. The plants go through the winters nearly
bone dry. You do not have to be so extreme with your clivia, but remember
to watch the watering indoors.
The roots of your plant will grow to where the water is. To get the most
out of your plant, you want the roots to extend throughout the whole pot.
You get this by how you water. When you water your clivia, water it thoroughly.
Be sure that water runs out the bottom of the pot. This serves two purposes.
First, it flushes any accumulating salts out of the medium. Unless you
are using water purified by reverse osmosis, distilled water, or rain
water, the water you use will contain inorganic salts. Most public water
supplies provide hard water, so called because it contains dissolved limestone
as calcium and magnesium salts. If your water supply is softened, to remove
the calcium and magnesium, it will contain sodium in their place. In either
case, there will be a gradual build up of salts in the potting medium.
Secondly, watering thoroughly each time will keep the potting medium
in the lower part of the pot watered. By watering all the way down into
the pot each time, you encourage the roots to grow downward when they
have used up the water nearer the surface of the medium. Too much water
in the lower part of the pot could mean conditions that favor rot are
developing. Avoid this by letting the potting medium become dry to the
touch. Work your finger down as far into the medium as you can when checking.
You can check the condition at the bottom by looking through the drainage
hole there.
Remember: It is very hard to hurt a Clivia by letting it go dry. Until
you have the "feel" of caring for your clivia, it is always best to err
on the side of watering too infrequently.
Feeding your clivias: Proper nutrition is also a requisite for a healthy and
flowering clivia plant. We offer a discussion on plant nutrition:
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