Gardening tips, gardening info and heaps of ideas to help gardeners of all experience get more out of their hobby and out of their gardens.
Repotting plants is certainly not a hard task yet it is one that is often fraught with disaster and an activity where many people lose their favourite plant. The reasons are many but in most cases they can be easily avoided and your plant transplanted with great success.
So, let's start with an example.
The cause: there are two reasons really. The first is that the rootball has outgrown this pot and it has become rootbound. The other reason is caused by the pot itself. It is supposed to be one of those self-draining pots that when too much water is added it automatically allows it to drain away. As this plant hasn't been repotted for more than two years, it has clogged up the drainage holes and acted as its own plug.
Depending on the size of the plant rootball, fill the container up with new, clean potting mix to just under half its height. The potting mix should be free-draining, enriched with nutrients and still moist.
The idea is not to remove the soil completely but to reduce the mass and free any roots that have become entangled and bound.
Once you've reached this point then you can start gradually adding more potting mix over the roots. The key to remember is that any air pockets left in the soil could potentially become a plant killer so make sure that you wriggle the plant from side-to-side and up-and-down allowing them to be filled.
When the sides are completely filled, continue pouring potting mix over the rest of the roots until the levels come up to the base of the stem. This should still give you some space between the lip of the pot and the soil which will be helpful for watering and fertilising.
The final step in the repotting process is to add some slow-release fertiliser over the top of the soil and water in well with a liquid fertiliser. Make sure you pour the liquid fertiliser over the foliage to aid in its ability to utilise all the nutrient on offer.
Now, before you leave, here are a few pitfalls that you may want to avoid in the process to give your plant the best chance at success;
And, Voila! You have repotted your plant and it shall successfully continue to grow well into the future.
Comments
Great potting tips today Stuart. Hope your Cumquat bounces back quickly.
Posted by: Racquel | November 18, 2008 7:04 AM
Hmm...I need to repot a giant rosemary...I think I want it in the same pot...but this root pruning technique and reducing the plant may keep it from having to move up to the next size...a pot I won't be able to lift! Thanks, Gail
Posted by: Gail | November 18, 2008 7:28 AM
good tips Stuart! Now if I can only figure out how to get my gardenia out of the pot whose top diameter is smaller than its middle (without breaking the pot!)
Posted by: linda | November 18, 2008 10:35 PM
Hey, thanks for the advice. I live in Munich and I have a Poinsettia plant that I bought about 2 months ago. It's already grown too large for its pot and I am considering repotting it. Is it a good idea to do this in the Winter? Or should I wait till the spring? Any tips??Thanks
Posted by: theresa | December 7, 2008 11:44 PM