How to Get Your Amaryllis to Bloom Again: Heat Trick That Forces Rebloom in 60 Days

Your amaryllis isn’t blooming again because it’s waiting for the right signal—and it’s not what you think. 🌱 Most gardeners overwater and under-trick their plants, but the real secret lies in a 60-day heat cycle that mimics tropical storms.

I’ve rebloomed stubborn amaryllis plants using this method after years of frustration, and the results are nothing short of dramatic.

The problem isn’t lack of light or fertilizer—it’s skipping the dormancy trigger. Amaryllis bulbs need a period of rest (even in pots) followed by a sudden warmth shock. Think of it like waking a hibernating bear: you don’t just turn up the heat gradually.

This forces the bulb to redirect energy into flower production instead of leaf growth. Most people miss this step entirely, which is why their plants keep throwing out foliage but never blooms.

By day 60, you’ll see tight buds forming at the top of the stem—sometimes even before the old leaves yellow. The blooms arrive in clusters of 2-6 flowers, each lasting 7-10 days with proper care.

The key is patience: the heat trick creates a false summer signal that confuses the bulb into thinking it’s time to bloom, even when it’s technically dormant.

Works for any Hippeastrum variety, including the popular ‘Apollo’ and ‘Red Lion’. The same method applies whether your plant is in a sunny window or under grow lights. Here’s exactly how to do it without killing your plant in the process.

What you need

Step-by-Step instructions for forcing your amaryllis to rebloom

Here’s the proven method I use to coax those stunning blooms back year after year—no guesswork, just science-backed timing.

After your amaryllis finishes flowering, stop watering entirely and move it to a cool, dark spot (around 55-65°F). This mimics winter dormancy. I place mine on a high shelf in my garage where it stays consistently cool but not freezing. Let the bulb rest for 8-10 weeks—this is non-negotiable for forcing future blooms.

You’ll know it’s ready when the leaves turn yellow and wilt. Don’t panic—this is normal! The bulb is storing energy underground. Once the foliage is completely crispy, trim it back to about 1 inch above the bulb with clean scissors. This prevents rot and signals the bulb it’s time to focus on blooming again.

After the rest period, move the bulb to a warm spot (around 70-75°F) with bright, indirect light. I use my kitchen counter near the window—just avoid direct midday sun, which can scorch the emerging leaves. Place the bulb in its pot (no need to repot) and water sparingly—just enough to keep the soil slightly moist.

Here’s the key: No fertilizer yet. The bulb needs to wake up naturally. You’ll see a green shoot emerge in 2-4 weeks. Once it reaches 2-3 inches tall, that’s your cue to start fertilizing lightly with a balanced houseplant food (diluted to half-strength) every 2 weeks. This jumpstarts growth without overwhelming the bulb.

When the shoot grows to 6 inches tall, it’s time to rotate the pot daily. This ensures the stem grows straight toward the light instead of leaning. I also increase watering slightly—keep the soil evenly moist but not soggy. Overwatering now can cause rot, especially if drainage isn’t great.

Watch for a second shoot to emerge from the bulb. If it does, leave it—more shoots mean more potential blooms later. Once the main stem reaches 10-12 inches, you’ll see a bud forming at the top. This is the moment you’ve been waiting for! Reduce watering slightly to encourage blooming (soggy soil can delay flowers).

When the flower bud is 2-3 inches tall, move the pot to a cooler spot (around 60-65°F) with bright, indirect light. This mimics the natural cooling period that triggers blooming. I place mine back in my garage for 3-5 days before bringing it back to a warm, sunny window. This temperature shift is what forces the blooms to open.

Within 7-10 days, you’ll see the first colorful petals unfurl. Keep watering consistently now—not too much, not too little—and avoid moving the pot. Amaryllis blooms are delicate, and sudden changes can cause them to drop prematurely. Enjoy your rebloom, and repeat the process next year!

Tips & tricks for perfect amaryllis reblooming

These little-known tricks will help you coax stunning second blooms from your amaryllis every year—no matter how stubborn it seems.

Temperature Precision: The 55-65°F range for Step 1 isn't just arbitrary—it mimics the natural winter dormancy period that triggers reblooming. I use a thermometer in my garage to confirm temps stay consistent. If your space fluctuates above 70°F, move the bulb to a cooler basement or refrigerator (but never below freezing). The key is maintaining that steady coolness for the full 8-10 weeks.

Lighting Strategy: In Step 2, when you're providing bright indirect light, place your amaryllis near an east-facing window where morning sun is gentle. South-facing windows can be too intense—you'll notice the leaves start turning yellow or crispy at the edges if it's getting too much direct heat. A sheer curtain helps diffuse the light while still providing plenty of brightness for photosynthesis.

Fertilizer Timing: The instructions mention waiting until the shoot reaches 2-3 inches before fertilizing, but here's the secret: use a weak solution (half-strength) and apply it to the soil, not the leaves. I mix my fertilizer with water first, then water the bulb with this solution. This prevents leaf burn while still giving the bulb the nutrients it needs to produce strong stems. Start with a balanced 10-10-10 formula—amaryllis don't need special bloom boosters.

Watering Watch: The most common mistake in Step 3 is overwatering when you see the bud forming. Once that 2-3 inch bud appears, reduce watering to just keeping the soil lightly moist—not soggy. I use my finger to check moisture—if the top inch of soil feels dry, that's when to water. Too much moisture at this stage can actually prevent the flower from opening properly, and you'll end up with a bud that just sits there without blooming.

Frequently asked questions

Got questions about reviving your amaryllis and coaxing those stunning blooms back? You’re not alone—gardeners everywhere wrestle with the same concerns! Here are some of the most common queries (and answers) to help you troubleshoot and succeed.

Why won’t my amaryllis bloom after the first year?

Most amaryllis bulbs need a period of dormancy (6-8 weeks of cooler temps and minimal water) to store energy for reblooming. If you skip this step or keep them in warm, humid conditions year-round, they may focus on foliage instead of flowers. Pro tip: Mimic their natural cycle with the "heat trick" to reset their blooming rhythm!

How long does it take for the heat trick to work?

The heat trick typically forces blooms in 60–90 days, depending on the bulb’s health and your consistency. Start by placing the potted bulb in a dark, warm spot (70–75°F) for 6–8 weeks, then move it to bright, indirect light. Patience is key—some bulbs bloom faster, while others take a little longer to respond.

Should I water my amaryllis differently during dormancy?

Yes! During dormancy, reduce watering to once every 2–3 weeks (just enough to keep the soil slightly moist). Overwatering can rot the bulb, while underwatering stresses it. Once you reintroduce warmth and light, gradually increase watering as new growth appears. Watch for: Yellowing leaves (overwatering) or wrinkled bulbs (underwatering).

What if my amaryllis only grows leaves and no flowers?

Leafy growth without flowers usually means the bulb isn’t getting enough dormancy or light. Try this:

• Move it to a sunny window (6+ hours of light daily).
• Ensure the bulb gets 6–8 weeks of dormancy (cooler temps, less water).
• Check for crowded roots—repot if the bulb is root-bound.

Can I force an amaryllis to bloom more than once a year?

With the right care, yes! Healthy amaryllis bulbs can bloom 2–3 times per year if you:

• Give them dormancy periods after each bloom cycle.
• Fertilize lightly after blooming (use a bulb-specific fertilizer).
• Avoid moving them too often—consistency is key.

What do I do if my amaryllis bulb rots?

Rot is often caused by overwatering or poor drainage. If you spot mushy bulbs, dark spots, or foul smells:

1. Remove the bulb from its pot and trim away rotten areas with a sterile knife.
2. Let it dry in a shady, warm spot for 2–3 days.
3. Repot in fresh, well-draining soil (cactus mix works well) and reduce watering.
4. Skip the heat trick this year—focus on recovery first.

Wrapping up and next steps

Getting your amaryllis to bloom again isn’t just about luck—it’s all about timing, patience, and a little heat trick! 🌱 By following the steps above, you’ll give your plant the perfect conditions to reward you with stunning flowers in just 60 days.

Remember, consistency is key, so keep an eye on those bulbs and enjoy the process.

Ready to see those blooms? Start your heat trick today! Share your progress with fellow plant lovers or tag us—we’d love to cheer you on. Happy blooming! 🌸