String of Buttons Care (Crassula perforata)

Crassula perforata prefers bright, direct light but needs protection from harsh extremes.

• Provide 4–6 hours of morning sun or bright filtered light; light afternoon shade helps prevent leaf scorch in hot climates.
• Plant outdoors in a position with east or southeast exposure; indoors, place near a south- or west-facing window with sheer curtain if sun is intense.
• Pale, stretched stems indicate too little light, while brown, crispy patches signal sunburn; adjust exposure seasonally as summer sun is stronger and winter sun weaker.

Water this succulent deeply but infrequently, allowing the soil to dry between waterings.

• Let the top 3–5 cm of soil dry completely before watering; in active growth, this may mean roughly every 7–14 days depending on heat and sun.
• Use sharply draining, gritty soil so excess water runs through quickly, which helps prevent root rot and supports healthy Crassula perforata growth.
• Wrinkling, soft leaves that feel flat indicate thirst, while mushy, translucent, or dropping lower leaves point to overwatering and waterlogged roots.

This species prefers warm, dry conditions and does poorly in frost or prolonged cold.

• Aim for 65–80°F (18–27°C) for steady growth, with slight drops at night encouraging compact, colorful foliage.
• Protect from temperatures below 30–32°F (-1–0°C); repeated light frost can scar leaves and kill roots, especially in wet soil.
• In hot spells above 90°F (32°C), provide light shade and airflow; reduce watering slightly in cool seasons when growth slows and soil stays moist longer.

Humidity is rarely critical for Crassula perforata, which thrives in typical indoor air.

• Target 30–50% relative humidity, similar to most heated or air-conditioned homes.
• Dry air is usually tolerated; String of Buttons prefers dryness over prolonged damp, which encourages rot.
• If leaf tips shrivel while soil moisture is correct, briefly increase humidity with a nearby pebble tray rather than misting.

Crassula perforata prefers a very fast-draining, mineral-rich substrate that dries quickly between waterings.

• Use a cactus or succulent mix amended with extra mineral grit, such as coarse sand, pumice, or small gravel, for sharper drainage.
• Aim for a sandy or gritty texture with low to moderate organic matter; excess peat or compost holds water too long around the roots.
• Maintain slightly acidic to neutral pH around 6.0–7.0, avoiding heavily limed or strongly alkaline mixes that can reduce nutrient availability.
• Improve aeration and drainage by filling at least the lower third of the pot with coarse material, and avoid any soil that compacts when squeezed.

This species is well suited to container growing due to its compact, spreading habit.

• Choose a wide, shallow pot to match the horizontal spread of stems and keep the root zone from staying wet at depth.
• Select unglazed terracotta if extra moisture loss is needed, as its porous walls help dry the mix faster in cool or dim conditions.
• Stabilize trailing, top-heavy growth by using a heavier pot or adding a top layer of gravel to reduce tipping risk outdoors or on shelves.

Crassula perforata grows well with light feeding during its active season in spring and summer.

• Use a balanced liquid fertilizer (for example 10-10-10) diluted to 25–50% strength for String of Buttons.
• Feed every 4–6 weeks during active growth if the plant is in fresh, well-draining mix.
• Skip rich compost and heavy organic feeds that can keep soil too moist for succulent roots.
• Stop fertilizing in fall and winter, when growth slows or stops.

Pruning helps Crassula perforata stay compact and encourages branching.

• Best time is late winter to early spring, just before or as new growth begins.
• Remove dead, shriveled, or damaged stems with clean, sharp scissors or small pruners.
• Trim long, stretched stems above a node to create a fuller, bushier shape.
• Use healthy tip cuttings from pruned stems for propagation if desired.

This succulent prefers slightly snug pots and only needs repotting when clearly rootbound.

• Check for roots circling the drainage holes, crowded root mass, or slowed growth as signs to repot.
• Plan to repot every 2–3 years in spring, using a gritty cactus or succulent mix and a pot with drainage.
• Gently loosen the outer roots, remove old compacted soil, and avoid breaking thick roots.
• Water lightly after repotting, then allow soil to dry between waterings to limit transplant shock.

Crassula perforata is commonly propagated from stem cuttings taken during the growing season.

• Take 5–10 cm stem cuttings in spring or early summer, choosing firm, healthy segments.
• Remove lower leaves and let cut ends dry and callus for 1–3 days to reduce rot risk.
• Plant cuttings in a dry, gritty succulent mix and place in bright, indirect light.
• Keep soil barely moist until roots form, then gradually shift to normal succulent watering.

This species is frost sensitive and benefits from simple winter protection in cool climates.

• Move container plants indoors before temperatures drop near 40°F, placing them in bright light.
• Keep winter temperatures around 50–65°F and reduce watering so soil dries more between waterings.
• Outdoors in mild climates, grow in very free-draining soil to prevent cold, wet root rot.
• Do not use heavy mulches against stems, as excess moisture in cold weather encourages decay.