Indoor azaleas in November: Keep cool, check the root ball
Colour for grey days: Check light, rising warm air and root-ball moisture for your indoor azalea, and plan for later repotting if needed.
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A flowering indoor azalea brings colour to grey November days, but the warm spot above a living-room radiator is not necessarily its favourite place. While it is flowering, bright, cool conditions and an evenly moist root ball matter most. A new pot or extra fertiliser is not automatically the first step.
Bright and cool, with protection from frost
This article concerns indoor azaleas from the group around Rhododendron simsii, rather than hardy garden azaleas. These potted plants need protection from frost. While they are flowering, choose a bright, cool position away from strong direct sun. Hot, dry air immediately above a radiator is unsuitable.
Check the actual conditions: is the pot above rising warm air even though the windowsill feels cool? Is a thick curtain keeping the plant in the dark? A suitable position combines light with cooler room conditions; moving the plant outdoors into possible frost is not a solution.
Check the root ball instead of watering by the calendar
Do not let the root ball dry out completely. Lift the pot carefully and compare its weight with how it felt after thorough watering and draining. Check the growing medium's moisture too: a surface that still feels slightly moist does not describe the whole root ball.
Where possible, use rainwater or other suitable low-lime water. After watering, let excess water drain away and empty the saucer or decorative outer pot. Evenly moist does not mean leaving the roots standing in water. Pot size, light and room conditions change demand; there is no single watering day that suits every azalea.
Choose the next step after flowering
Then assess whether repotting is necessary. Suitable acidic compost needs a container with drainage. Keep the root ball at its previous level and handle the fine roots gently. Account for the compost's initial fertiliser when planning later feeding; the calendar alone is no reason to add fertiliser in November.
Avoid creating dust when filling with compost. The growing medium is not suitable for consumption; keep it out of reach of children and pets. Wash your hands after working.
For today, a short check is enough: assess light and rising warm air, check root-ball moisture and make sure water drains away after watering.
