Gardenality.com · Gardenality Genius · Zone 8A · 10° to 15° F · Comment About Feeding
Stevia plants respond well to fertilizers with a lower nitrogen content than the fertilizer’s with a higher phosphoric acid or potash content. Most organic fertilizers work well since they release nitrogen slowly. Fertilize in spring and again in early summer.

Gardenality.com · Gardenality Genius · Zone 8A · 10° to 15° F · Comment About Pruning
Harvesting should be done as late as possible, since cool fall temperatures and shorter days tend to intensify the sweetness of the plants as they evolve into a reproductive state. The easiest technique to harvest stevia is to cut the branches off with pruners before stripping the leaves. As an extra bonus, you might also want to clip off the very tips of the stems and add them to your harvest, as they are apt to contain as much stevioside as do the leaves.

Gardenality.com · Gardenality Genius · Zone 8A · 10° to 15° F · Comment About Planting
In zones where Stevia can be grown outdoors, plant them in a rich, loamy, well-drained soil. If your soil is sandy add some compost when planting.

This versatile plant can be grown either in pots on your balcony or any sunny spot. A 10? to 12? diameter container filled with a lightweight growing mix is an ideal size for each plant. A little mulch on the top will help retain the moisture in the shallow root zone.