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A lanky plant with smallA lanky plant with small leaves suggests that your sage is not getting enough light. Ideally, something like 6 to 8 hours of daylight per day is needed; a plant may not get enough if it is just sitting by a window (south-facing is best). You might want to provide artificial lighting: Set up grow-lights (such as two fluorescent tubes, one cool, one warm type) and place the plant under them (about 4 to 6 inches away from the lights) for about 12 to 14 hours per day. Ask your garden center for options--there are several bulb types and setups available.   Also, keep your plant away from cold drafts (such as by a window), and away from heating vents. A temperature around  65 to 70 degrees is good. Mist regularly.  

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