Indoor cyclamen have been popular for many years, they are commonly called the ‘Florists Cyclamen’ and these are cultivars or hybrids of Cyclamen persicum.
Sometimes grown as a ‘throw away’ plant, with proper care they can last for many years and reward you with flowers for many weeks. They come back after dormancy year after year, make a great houseplant and this is how you grow them.
How Grow Cyclamen Indoors – Key Factors
It’s all a matter of light, soil mix, temperature and watering as well as fertilizer.
- Light
Cyclamen need good light to grow well, early morning sun is good with strong filtered or indirect light for the rest of the day.
Avoid direct afternoon sunlight especially through windows.
East or North-Facing Windows in the Northern Hemisphere
East or South Facing Windows in the Southern Hemisphere.
Very hot direct afternoon sun can easily cause foliage burn. - Temperature
Indoors this is not difficult, 50-65°F (10-18°C) which means away from heating and cooling ducts, so a cooler part of the house, but not cold.
The higher the temperature the more often you may need to water.
Avoid frosts if you are growing cyclamen on an exposed patio or verandah.
Generally, indoor cyclamen like a moderate to cool temperature, with a night time drop.
No drafts and avoid sudden temperature drops. - Soil
It is essential to have a free draining soil/potting mix. Add some extra drainage material to most indoor potting mixes, perlite and pumice are both suitable additives.
A simple recipe for cyclamen potting mix
1 Part Good quality Potting Mix
1 Part Drainage Material – Perlite or Medium Horticultural Grit.
1 Part Humus – this could be leaf mould, coir, peat, or composted pine bark, leaf mould
Top Dress with Grit or medium to Fine Akadama - Watering
Overwatering is a major issue with cyclamen grown indoors. They need a wet/dry cycle to grow well. The dry cycle ensures that the root system gets access to air.
It is best to avoid watering the foliage so as to help prevent fungal disease, Use a long necked watering can and water the soil, or place the pot in a dish of water for 20 mins and then let it drain thoroughly. Always allow the soil to dry between waterings.
Generally mist spraying is not recommended as it can cause fungal diseases. - Fertiliser
A general purpose slow release fertiliser applied in spring is usually sufficient. You can use a liquid fertiliser every 8 weeks during the growing season to improve growth
We are Asked
When do Indoor Cyclamen go dormant?
Generally after flowering, so over the summer months.
What do cyclamen look like when dormant?
The foliage will die back and you will see the tuber.
Should I water cyclamen during dormancy?
No.
Why is my cyclamen not flowering
Generally because the temperature is to high
Why has my cyclamen got yellow leaves
Overwatering can cause yellow leaves. Yellow leaves in autumn or winter indicate that the room is too warm.