Cactus Care Guide
Cactus
Also known as: Mammillaria, Gymnocalycium, Opuntia, Prickly Pear
Watering
Summer
Every 25 days
Winter
Every 35 days
Let soil dry completely between waterings. These plants store water and rot easily in damp soil.
Light
Direct sunlight
South-facing window, full sun for 4+ hours
Humidity
10-30%
Thrives in dry air. No misting needed.
Pet & Child Safety
Safe for pets and children
Pot & Soil
Loves being rootbound - only repot when truly overcrowded. Terracotta pot with cactus mix and extra grit.
Pot-size watering
The 25-35 day range is a starting point. A 5cm pot dries quickly, but the soil should still reach its proper dry-down before watering. A 22cm pot can hold moisture deep inside even when the top looks dry.
Prefers snug roots
This plant usually prefers a snug root zone. Size up only when roots are circling, the plant dries out much faster than usual, or growth has clearly stalled.
Soil refresh
Refresh gritty mix when drainage slows, salts crust on the surface, or the potting mix collapses - usually every 18-24 months for stable plants.
Good to Know
Need a dry winter rest to bloom. Extreme drought tolerance.
Frequently asked
How often should I water Cactus?▾
Every 25 days in summer and every 35 days in winter is the reference range. The 25-35 day range is a starting point. A 5cm pot dries quickly, but the soil should still reach its proper dry-down before watering. A 22cm pot can hold moisture deep inside even when the top looks dry. Let soil dry completely between waterings. These plants store water and rot easily in damp soil.
What light does Cactus need?▾
Direct sunlight. South-facing window, full sun for 4+ hours.
Is Cactus safe for pets and children?▾
Yes - Cactus is safe for pets and children.
What humidity does Cactus prefer?▾
10-30%. Thrives in dry air - no misting needed.
What soil and pot does Cactus need?▾
Loves being rootbound - only repot when truly overcrowded. Terracotta pot with cactus mix and extra grit. This plant usually prefers a snug root zone. Size up only when roots are circling, the plant dries out much faster than usual, or growth has clearly stalled. Refresh gritty mix when drainage slows, salts crust on the surface, or the potting mix collapses - usually every 18-24 months for stable plants.
Is Cactus beginner-friendly?▾
Yes - Cactus is a cactus well-suited to beginners.
Track your Cactus in LeafLovers
Smart watering reminders and care history are free. Premium adds AI diagnosis.
Get Started FreeRelated guides
String of Hearts Care Guide - Light, Water, Soil & Expert Tips
Delicate heart-shaped leaves on silvery trailing strands - a quiet enchantment for bright windowsills.
Cactus Care Guide - Light, Water, Soil & Expert Tips
Patient, resilient, and perfectly content being left alone.
African Milk Tree Care Guide - Light, Water, Soil & Expert Tips
A bold, fast-growing succulent that looks like a cactus but is not.
Your plants deserve better than a sticky note
Smart reminders that adapt to your pot size, light, and seasons.
No credit card. No tricks. Ready in 30 seconds.
