Troubleshooting
Darwin's Orchid problems — and how to fix them
Darwin's Orchid (Angraecum sesquipedale) 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.
Failure to spike
Requires a modest temperature drop at night (to 15-17°C) for 4-6 weeks in autumn, combined with reduced watering, to initiate the typically winter flower spikes.
Root loss from overwatering
Roots are susceptible to rot if kept constantly wet. Allow thorough drying between waterings and use a fast-draining coarse bark or cork mounting.
Leaf yellowing at the base
Lower leaves naturally yellow and shed as the stem extends upward over the years; this is normal. Sudden yellowing of multiple leaves suggests overwatering or root problems.
Scale insects
Inspect the thick, waxy leaves and the base of the stem regularly. Treat with rubbing alcohol and follow with horticultural oil if widespread.
Slow growth
Angraecum sesquipedale is inherently slow-growing and takes several years to reach flowering size. Patience and consistent care are required; avoid over-potting.
Prevent darwin's orchid problems before they start
Most darwin's orchid issues are care-mismatch, not bad luck. Dial in the basics:
Darwin's Orchid problems — FAQ
Why is my darwin's orchid failure to spike?
Requires a modest temperature drop at night (to 15-17°C) for 4-6 weeks in autumn, combined with reduced watering, to initiate the typically winter flower spikes.
Why is my darwin's orchid root loss from overwatering?
Roots are susceptible to rot if kept constantly wet. Allow thorough drying between waterings and use a fast-draining coarse bark or cork mounting.
Why is my darwin's orchid leaf yellowing at the base?
Lower leaves naturally yellow and shed as the stem extends upward over the years; this is normal. Sudden yellowing of multiple leaves suggests overwatering or root problems.
Why is my darwin's orchid scale insects?
Inspect the thick, waxy leaves and the base of the stem regularly. Treat with rubbing alcohol and follow with horticultural oil if widespread.
Why is my darwin's orchid slow growth?
Angraecum sesquipedale is inherently slow-growing and takes several years to reach flowering size. Patience and consistent care are required; avoid over-potting.