The Story
Plant Bio
Crassula perforata, string of buttons, is a clumping succulent from the Cape provinces of South Africa, reaching one to two feet with sprawling stems. Short thick triangular grey-green leaves are held in opposite pairs that stack and spiral around the stem, appearing threaded onto it, and small pale yellow star flowers open in spring.
The stacked leaf pairs spiral as they climb the stem, which is the whole visual point and is lost when the plant is grown too dark — stems stretch, the pairs separate and the threaded look disappears. Bright light keeps them tightly packed. It sprawls with age rather than staying upright, which suits a hanging pot better than a table one.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Cactus Succulent
Height
18 inches
Width
30 inches
Light
Full Sun, Partial Sun
Zones
9, 10
Water
Low
Humidity
Low
Lifespan
Perennial
Native To
South Africa
Toxicity
Toxic to cats and dogs
Planting
How to Grow
- Give it bright light, including some direct sun.
- Use gritty, sharply draining cactus compost.
- Water thoroughly, then let it dry out completely.
- Keep it dry and cool through winter.
- Restart from tip cuttings when stems sprawl.
- Keep it away from cats and dogs.
Pro Tip
Stretched stems with gaps between the leaf pairs mean too little light — the tight stacked look only forms in bright conditions.
Keep It Thriving
Care Guide
Do
- Give it the brightest light you have ☀️
- Let it dry fully between waterings 🌵
- Restart from tip cuttings 🌱
- Keep it out of reach of pets 🐈
Don't
- Grow it in a dim corner ❌
- Overwater it ❌
- Expect it to stay upright ❌
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rest | ||||||||||||
| Water |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Multiply
Propagation Methods
Good to Know
Common Questions
String of Buttons questions
What zones can String of Buttons grow in?
String of Buttons is hardy in USDA Zones 9–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is String of Buttons deer resistant?
Yes — String of Buttons is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does String of Buttons bloom?
String of Buttons typically blooms in spring to summer through early fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does String of Buttons need full sun?
String of Buttons does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is String of Buttons drought tolerant?
Yes — once established (usually after the first full season), String of Buttons handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Crassula to compare

Campfire Crassula
Crassula erosula 'Campfire'

Propeller Plant
Crassula falcata

Variegated Red Pagoda
Crassula pagoda 'Variegata'

Hobbit Jade Plant
Crassula ovata 'Hobbit'

Calico Kitten
Crassula ovata 'Calico Kitten'

Red Pagoda Plant Crassula Red Pagoda
Crassula capitella 'Red Pagoda'
Keep exploring
Explore the genus
Hardy in your zone?
Grow String of Buttons with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.

