String of Buttons Identification Guide

Key Identifying Features

String of Buttons (Crassula perforata) is a distinctive upright succulent whose pairs of triangular leaves stack tightly around the stem, making the stem look as if it's been threaded straight through the center of each leaf pair, like beads or buttons on a string. It is also sold as "Necklace Vine" or "Pagoda Plant."

• Opposite triangular leaves that clasp and fully surround the stem
• Leaves stacked in spiraling tiers up the stem
• Gray-green leaves with pink or red margins in bright light
• Sprawling-to-upright stems that lengthen and topple with age

Leaves & Stems

Each leaf is roughly triangular to ovate, gray-green, fleshy, and often dusted with a fine powdery bloom (farina). The leaves come in opposite pairs fused at the base, and each successive pair is rotated about 90 degrees, producing a square, geometric, stacked appearance up the stem. Edges typically blush rosy pink to red under sun stress. The species name perforata refers to the way the stem appears to perforate the joined leaf bases.

The stems start upright but elongate and trail or lean as they grow, often forming clumps. Older stems become woody at the base.

Flowers & Fruit

In spring, String of Buttons produces small, pale yellow to creamy-white star-shaped flowers in clusters at or near the stem tips. The flowers are modest but add a soft frosting of color. Fruit is a tiny inconspicuous capsule.

How to Tell It Apart from Look-Alikes

• Crassula rupestris (Baby's Necklace / Rosary Vine): very similar stacking, but its leaves are more rounded/bead-like and plumper, whereas String of Buttons has flatter, distinctly triangular leaves.
• Crassula 'Buddha's Temple' and pagoda hybrids: these stack into a tighter, denser column; String of Buttons is looser and more open with visible stem between the wider-spaced pairs.
• String of Pearls/Bananas (Senecio): trailing with round or banana beads on thin vines, not stacked triangular pairs hugging an upright stem.

Where You'll Find It

Native to South Africa, String of Buttons is grown as a popular indoor and outdoor ornamental succulent in USDA zones 9-11. It thrives in bright light and well-drained soil, and is common in hanging baskets, rock gardens, and mixed succulent arrangements where its stacked stems can drape over edges.

Quick ID Checklist

• Triangular leaf pairs clasping and stacked up the stem
• Stem appears to run through the center of joined leaves
• Successive pairs rotated ~90 degrees (square/geometric look)
• Gray-green leaves with pink/red margins in sun
• Powdery bloom on leaves
• Small pale-yellow star flowers in spring

Tip: If your plant gets leggy with wide gaps between leaf pairs, it needs more light; tightly stacked tiers indicate happy, well-lit growth.