Abstract: A lamp having a base, a light assembly and wiring therefor includes a terrarium lower bowl of transparent material forming a part of and projecting from the base and terminating in an annular rim to define an open end. The lower bowl is adapted to hold soil material and growing plants. An upper bowl of transparent material is open at its lower end and formed with an inset annular flange bearing against and extending into the lower bowl annular rim with the upper bowl supported upon and forming a continuation of the lower bowl. An annular bead upon the interior of the lower bowl rim is adapted to receive the corresponding externally grooved portion in said flange for securing the upper and lower bowls together. Another method of fastening the bowls together includes a pair of spaced internal latches which extend through apertures adjacent the lower end of the upper bowl with internal portions of said latches adapted to retainingly engage an annular lock flange upon the interior of the lower bowl rim.