Troubleshooting
Queen Sago problems — and how to fix them
Queen Sago (Cycas circinalis) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Frost and cold damage
More cold-tender than the common sago; even a light frost browns the fronds. Keep it above about 5°C and well away from cold draughts.
Root rot from overwatering
Soggy compost rots the roots and trunk base. Provide sharp drainage and let the surface dry between waterings, especially in winter.
Brown, crispy frond tips
Usually low humidity, underwatering or salt build-up from over-feeding. Raise humidity, water more evenly and flush the pot occasionally.
Scale insects
Cycad scale can encrust the undersides of fronds. Inspect regularly and treat early with horticultural oil before it spreads across the crown.
Prevent queen sago problems before they start
Most queen sago issues are care-mismatch, not bad luck. Dial in the basics:
Looking for queen sago in general rather than its problems? Read the full queen sago care guide — light, water, soil and feeding.
Queen Sago problems — FAQ
Why is my queen sago frost and cold damage?
More cold-tender than the common sago; even a light frost browns the fronds. Keep it above about 5°C and well away from cold draughts.
Why is my queen sago root rot from overwatering?
Soggy compost rots the roots and trunk base. Provide sharp drainage and let the surface dry between waterings, especially in winter.
Why is my queen sago brown, crispy frond tips?
Usually low humidity, underwatering or salt build-up from over-feeding. Raise humidity, water more evenly and flush the pot occasionally.
Why is my queen sago scale insects?
Cycad scale can encrust the undersides of fronds. Inspect regularly and treat early with horticultural oil before it spreads across the crown.