Step-by-Step Growing Guide
Mint is so invasive that it should almost never be grown in open garden beds — plant it exclusively in containers or install a buried physical barrier (heavy-gauge plastic sheeting to 30cm depth) to contain its runners. It thrives in rich, consistently moist soil at pH 6.0–7.0. Choose pots at least 30cm deep and wide; fill with quality potting mix amended with 30% compost. Space multiple plants 20–25cm apart if growing in a large container. Mint tolerates partial shade well — 4–6 hours of sunlight is sufficient, and afternoon shade actually reduces bolting in hot climates. Water frequently to keep soil consistently moist — never allow it to dry out, and never let pots sit in standing water. Feed with a balanced liquid fertiliser (10-10-10) monthly during the growing season. Cut plants back to 8–10cm above the soil every 6–8 weeks to prevent woody stemming and encourage fresh, tender new growth. Divide congested containers every 2 years.
