Answer: Yes, there are several reasons for starting out small and working your way up to larger container sizes. If you use too large a container, the extra soil will soak up too much water, the plant?s roots will grow more than necessary (like moving into a larger house and filling the space with stuff) and foliage and flower growth will decrease. Keep the roots contained and the plant will grow more foliage and flowers; give the roots too much room and the plant will spend most of its energy building a root system and not much energy on stems, leaves and flowers. The excess soil that soaked up all that extra moisture will either turn sour or be depleted by the time the roots arrive. I'd simply bump up the plants as they grow and repot in fresh potting soil each time. Hope this clarifies things for you.
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