Can you grow roses in
containers?
The answer is YES!
There are a few things to keep
in mind to grow roses successfully.
1.
Choose the right pot. Roses need room to grow so choose a pot that
is larger than the nursery pot they come in at the garden center. Pots are measured by inside diameter and
depth or height so take a tape measure with you or ask the sales associate to
help you with the dimensions. There are
a variety of finishes and colors to choose from such as Terra Cotta Clay,
Glazed Ceramic, Fiberglass and Polyethylene.
Have fun and find something that will complement your garden or
patio. Recommended sizes are listed
below.
2.
Potting soil is important. There are a lot of different potting soils
and the choices can be confusing. Don’t
try to save money by purchasing a poor quality soil; your roses will be growing
in the pot for a long time so this is an investment that will pay off. Bags of compost or composted cow manure alone
are too heavy and do not drain well enough in containers. Choose a soil that is light and preferably contains
a wetting agent or moisture saving crystals.
You can amend your potting soil by adding some composted cow manure; we
recommend a ratio of 3 parts potting soil to 1 part composted cow manure.
3.
It is not necessary to add a
layer of rocks to the bottom of the container. Adding rocks decreases the growing space for
your rose and isn’t necessary for good drainage. Cover the drainage holes with a small piece
of screen, a coffee filter or a broken piece of pottery to help prevent soil
from washing out. At this point you are
ready to start filling the pot and planting your rose in its new home.
4.
It is time to plant. Fill the pot about halfway or more (depending
on the depth of the container) with potting mix. Set the rose in its nursery pot on the soil
to check the depth, add more mix if it is sitting too low. Be sure to plant the rose at least a couple
of inches deeper than the rim of the container.
Remove the rose from the nursery pot either by pulling gently or cutting
the pot away from the root ball. Set it
on the soil in the center of the container.
Fill in around the roots with the remaining potting mix keeping the
graft above the soil line. Water to
settle the soil, adding more potting mix if needed.
5.
The finishing touches make a
difference. To finish it off add a 1-2” layer of mulch,
not only does this look good but it will help keep the soil from drying as
quickly and diffuses water from the hose or watering can over the surface of the
pot.
6.
Fertilizing: Some potting soils have a starter fertilizer
but roses are heavy feeders so you will need to add fertilizer. Time release fertilizers may be added for all
season feeding or low numbered fertilizers like Rose Tone (4-3-2) may be applied
about every 8 weeks up to the middle of August.
Use half the recommended amount. Water
soluble fertilizers also work, reapply every 2 weeks.
7.
Watering: The larger the pot the more slowly it will
dry out, but containers do dry out more quickly than a garden bed. Water at least twice a week or more if it is
hot and dry (no rain), and make sure the water drains to the bottom of the pot.
8.
Winterizing: In the Southeast when there is a threat of
frost, cover the graft or center of the rose with 6-8 inches of mulch. Ground contact causes more freeze/thaw damage
so try to place the container on concrete or brick patios or stepping stones
and avoid areas with cold, drying winter winds.
Colder zones can add mulch and protect by covering with burlap or
specially designed wraps for shrubbery.
Minimum Recommended
Container Sizes:
Miniature Roses 14-16”
diameter, 14-16” depth
Hybrid Tea,
Grandiflora or Floribunda 20-25”
diameter, 18-20” depth
Shrubs or Knock
Outs 20-25”
diameter, 18-20” depth
Climbers 20-25”
diameter, 18-20” depth
Trees 20-25”
diameter, 18-20” depth
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