String of Buttons Care Guide
Crassula perforata
Quick Answer
The most common mistake with String of Buttons is overwatering — it stores water and handles drought far better than soggy soil. Let the soil dry out completely between waterings and when in doubt, wait another few days. Plant it in fast-draining mix (a cactus or succulent blend) and a pot with good drainage to give yourself a margin for error.
⭐Difficulty
Easy
☀️Light
Bright indirect to full sun
💧Watering
Every 2–3 weeks
🌫️Humidity
Low (30–40%)
🌡️Temperature
30–90°F
📈Growth Rate
Slow–Moderate
Toxicity
Source: ASPCA Animal Poison Control
Watering
Summer
Every 2–3 weeks
Winter
Every 4–6 weeks
Method: Allow soil to dry completely; water thoroughly then wait; soak and dry
In summer, aim to water string of buttons approximately every 2–3 weeks; in winter cut back to around every 4–6 weeks. Rather than following a calendar, let the soil dry out completely — all the way to the bottom of the pot. Water thoroughly until water drains from the bottom, then don't water again until the soil passes the dryness check. Soft or mushy leaves signal overwatering; slight wrinkling or shrivelling means it's time to water.
Light Requirements
Bright indirect to full sun
String of Buttons does best in a south- or west-facing windowsill where it gets at least 2–4 hours of direct sun. Without direct light, String of Buttons stretches toward the light source, loses its compact shape, and colour or markings may fade.
Soil & Potting
Soil: Gritty well-draining succulent or cactus mix
Pot: Terracotta with drainage; small pot is fine
Temperature & Humidity
Temperature: 30–90°F (-1–32°C)
Humidity: Low (30–40%)
Fertilizing
Frequency: Once in spring only
Type: Diluted cactus fertilizer
Common Problems
Stretched spacing between leaves
Stretched spacing between leaves: Low light. Move to bright sun. Leggy, sparse growth means the plant is reaching for more light than it's getting. Move it meaningfully closer to a window rather than just a few inches — plants often need far more light than we assume they do.
Mushy base
Mushy base: Overwatering or root rot. Repot in dry gritty mix after trimming rot. Check the roots: if they're dark, mushy, or smell off, root rot has set in. Unpot the plant, trim all affected roots with clean scissors, dust with cinnamon, and repot in fresh dry mix before resuming a cautious watering schedule.
Mealybugs in stacked leaves
Mealybugs in stacked leaves: Hard to see; check carefully. Treat with isopropyl alcohol. Check under leaves and along stems regularly, since pests establish colonies before becoming visible from above. Treat with insecticidal soap or neem oil, covering the undersides of leaves, and repeat every 5–7 days for at least three rounds.
Loss of pink edges
Loss of pink edges: Low light. Maximum sun intensity brings out the pink coloring. Catching the problem early makes it much easier to fix — watch for early warning signs and act before the plant is in serious distress.
Propagation
The easiest way to propagate String of Buttons is by stem cuttings. Take a 4–6 inch cutting that includes at least one node (the point where a leaf attaches). Remove any leaves that would be submerged, then place it in water or directly into moist potting mix. In water, roots appear within 2–4 weeks; pot up once they reach an inch long. The thing that trips people up most: taking a cutting without a node. Without a node, the cutting stays green for weeks but will never root.
Seasonal Care Calendar
🌸 Spring
Spring is when String of Buttons starts actively pushing new growth as day length and light intensity increase. Increase watering frequency as the plant becomes more active, begin fertilising every 2–4 weeks with a balanced liquid fertiliser, and this is the ideal window for repotting or taking cuttings.
☀️ Summer
Summer is peak growing season — String of Buttons is working hard and using water and nutrients faster than at other times of year. Water more frequently but check the soil rather than going on a fixed schedule, since heat and higher light accelerate drying. If you move it outdoors, introduce it to conditions gradually to prevent sun scorch.
🍂 Fall
As temperatures drop and light levels decrease in fall, begin tapering off watering. String of Buttons will naturally slow its growth rate — this is normal. Stop fertilising by late October and avoid any unnecessary repotting before winter. Watch for flower buds developing around spring — avoid repotting or relocating the plant at this time.
❄️ Winter
Winter is near-dormancy for String of Buttons. Water only when the soil has been completely dry for at least a week, which may mean once a month or less. Hold off on fertilising entirely until spring. Don't panic if growth stops completely — this rest is essential for the plant's long-term health.