Whether you’re looking at those big, hardy bushes in the backyard or a cute little potted plant on your windowsill, azaleas are famous for one thing: a total explosion of flowers. But if you’re wondering when exactly that show starts—and how to make it last—you’ve come to the right place. The timing actually depends on whether your plant is an indoor or outdoor variety.
When do azaleas bloom?
Garden azaleas usually wake up in the spring, showing off from March through early June. Indoor azaleas, on the other hand, are winter stars, blooming anywhere from October to April. While specific varieties have their own schedules, the secret to a long-lasting bloom for both is a cool spot and the right TLC.
When do outdoor azaleas bloom?
Azaleas that live in the garden have to deal with winter frosts. Even though these varieties are hardy enough to survive freezing temps, it’s just too cold for them to open up their buds in the dead of winter. Depending on the weather and the specific type you have, they’ll start popping from March to June. When they do, the flowers are often so thick you can barely see the green leaves! Usually, the peak show lasts about three weeks.
When do indoor azaleas bloom?
Potted indoor azaleas actually love the cooler months for their blooming season. Since our homes stay frost-free, the conditions are perfect for a long-lasting display. In the garden shop, you’ll usually find them grouped by their bloom times:
- Early: November to January
- Mid-season: January to March
- Late: March to April
Why is my indoor azalea struggling to bloom?
If your azalea isn’t blooming well, it’s likely feeling a bit too warm or missing some basic needs. Here’s how to get it back on track:
- Water (and mist!) almost every day using lime-free water (rainwater is great!).
- Fertilize with a liquid azalea-specific food according to the label.
- Keep it cool! They love temperatures under 68°F (20°C) and high humidity (60-70%).
- Avoid harsh, direct midday sun.
Pro tip: Pinch off wilted flowers regularly to encourage the plant to keep pushing out new buds.
Can I make my garden azaleas bloom longer?
To get the most out of your garden azaleas (which are cousins to, but different from, evergreen rhododendrons), keep them out of intense, direct sunlight. If you plant them in a spot that stays relatively cool and shaded during the heat of the day, you can sometimes stretch that gorgeous floral display out for up to two months.
Quick Tip: The best way to water indoor azaleas
Indoor azaleas are thirsty plants! To keep those blooms happy, try “dunking” instead of traditional watering. Submerge the entire pot in a bucket of water until the root ball is fully soaked (wait for the bubbles to stop). Just make sure to let the excess water drain off completely before putting it back in its decorative planter. Want to make it even easier? Use a self-watering pot with a reservoir!