The soil needed to plant succulents should be replaced, no matter how fertilized it was. You should never plant sansevieria cystrica in unfertilized soil. How tall does spear sansevieria cylindrica grow? Some grow very tall like the saguaro; others are more broad-leafed, while some have very thin leaves. You can find rooting hormone at your local nursery, gardening center or other places that may help you speed up the rooting process. However, this is not recommended. If you touch the plant with your finger, it may be exposed to your skin's oils which can lead to the removal of the coating.