Answer: Ivies such as this are very sturdy plants and should do well for a number of years in a container. Eventually, however, the root may outgrow the capacity of the pot or the potting soil may no longer be sufficient to provide enough nourishment and moisture to support a very large ivy plant. You may also find that the soil has deteriorated over time and becomes both compacted and infertile. To try to keep the plant healthy, you may be able to remove some of the top layer of potting soil and replace it with fresh. Careful watering to avoid the plant drying out will also help. An occasional top dressing with compost and possibly use of a fertilizer containing micronutrients may also be helpful. When it comes time to repot, the plant will grow back relatively quickly due to the large root system. Repotting may be delayed until the plant becomes unsightly due to stress and demonstrates that it truly needs to be done.
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