Double Bloom Lilies Growing Guide: Year-Round Color With Two Blooms Per Stem

Double bloom lilies turn every stem into a showstopper, and I’ve finally cracked the code to get them to perform like this year after year. 🌸 The secret isn’t just picking the right variety—it’s about giving them the exact conditions they crave: rich soil, consistent moisture, and just the right amount of sun to trigger that second flush of blooms.

I started with Stargazer and Casa Blanca varieties, which reliably produce two blooms per stem when cared for properly. The difference between one bloom and two often comes down to fertilizing at the right times—not too much, not too little—and making sure they’re not competing with weeds for nutrients.

My first attempt ended with sad, single blooms, but now I get bold, back-to-back flowers that last for weeks. What you’ll end up with is stems heavy with velvety petals in every shade from white to deep purple, each one lasting longer than single-bloom varieties.

The fragrance alone makes it worth the effort—like walking through a garden in full summer, even in early spring or late fall. This method works for border plantings, containers, and cut flower arrangements, and I’ll walk you through every step to get those second blooms without the guesswork.

Let’s get growing!

What you need

How to grow double bloom lilies for stunning year-round color

Here's how I coax lilies into producing two blooms per stem—it takes patience, but the results are worth it.

Start with double bloom lily bulbs like 'Stargazer' or 'Casa Blanca'—these varieties are bred to produce two flowers per stem. Plant them in well-draining soil with full sun exposure (at least 6-8 hours daily). I always test drainage first by digging a hole and filling it with water; if it drains within 15 minutes, the site is perfect.

Double bloomers need fertile, slightly acidic soil (pH 6.0-7.0). Amend heavy clay with compost or sand to improve drainage—waterlogged roots will kill your bulbs before they even bloom. I like to plant mine in late summer or early fall, giving roots time to establish before winter.

Set each bulb 6-8 inches deep with the pointed end facing up. The depth ensures stability and prevents wind rock. Space bulbs 12-18 inches apart—crowding leads to weak stems that can't support two blooms. I use a bulb planter for even spacing, but a trowel works too.

Cover the bulb with 2-3 inches of soil, then top with 2 inches of mulch to retain moisture and regulate temperature. Water immediately after planting to settle the soil around the bulb. Double bloomers need consistent moisture, especially during their first growing season.

Water deeply once a week during the growing season, increasing to twice weekly when buds form. You'll know it's time when the foliage reaches 12-18 inches tall—this is when the plant starts diverting energy to blooms. I always check soil moisture by sticking my finger 2 inches down; if it's dry, water thoroughly.

Fertilize in early spring with a balanced, slow-release fertilizer (10-10-10). Avoid high-nitrogen feeds—these encourage leafy growth at the expense of blooms. Double bloomers need moderate phosphorus to support flower development. Stop fertilizing 6 weeks before first bloom to let the plant focus on flowering.

As stems grow, they may need staking—especially if you're growing in windy areas. Use bamboo stakes tied loosely with soft twine to avoid damaging the stem. Double bloomers produce a second flower 2-3 weeks after the first, so be patient. You'll see the second bud forming as a small bump near the first bloom.

Deadhead spent blooms immediately to redirect energy to the second flower. I use clean pruners to cut stems just above the next bud. Leave the foliage intact until it yellows naturally—this ensures the bulb stores enough energy for next year's blooms.

In late fall, cut back foliage to 2 inches above the ground once it turns brown. Mulch heavily (4-6 inches) to protect bulbs from freezing temperatures. Double bloomers need consistent winter chill (below 40°F for 6-8 weeks) to trigger next year's blooms.

In early spring, remove mulch and fertilize lightly with half-strength fertilizer. Water sparingly until shoots emerge—overwatering now can rot bulbs. You'll see new growth in 3-4 weeks, signaling it's time to resume regular care.

Tips & tricks for growing double bloom lilies

Real talk: Getting two blooms from a single lily stem takes more than just planting and hoping. Here's what nobody tells you about maximizing those second flowers.

Variety Matters: Not all lilies produce double blooms—only specific cultivars like 'Stargazer' or 'Casa Blanca' are bred for this trait. I've tried planting regular lily bulbs expecting double blooms, and they only produced one. Always verify your bulbs are labeled as double-blooming varieties before purchasing. This single decision determines whether you'll get that second stunning bloom or just one.

Drainage is Non-Negotiable: The 15-minute drainage test in Step 1 isn't just a suggestion—it's critical. I learned this the hard way when my first batch of double bloomers rotted before ever flowering. Waterlogged roots prevent the bulb from storing enough energy for that second bloom. If your soil drains slower than 15 minutes, amend with compost and sand until you achieve proper drainage. The extra effort now prevents disappointment later.

Timing is Everything: The 6-8 hours of daily sunlight requirement isn't just about growth—it's about energy production. Lilies need full sun to develop the strong stems capable of supporting two heavy blooms. I've noticed that stems grown in partial shade often produce only one bloom because they lack the energy to support two. Position your lilies where they'll receive unobstructed sunlight from morning until evening.

Fertilizer Strategy: The 6-week pause before first bloom in Step 3 isn't arbitrary—it's when the plant shifts from vegetative growth to flowering. High-nitrogen fertilizers encourage leafy growth at this stage, which competes with bloom development. I've had the best success with a balanced 10-10-10 fertilizer applied in early spring, then switching to a phosphorus-heavy formula (like 5-10-10) when buds appear. This shift ensures the plant has the energy reserves needed for that second bloom.

Frequently asked questions

Got questions about double bloom lilies? You’re not alone! These stunning flowers are a gardener’s dream, but they do come with a few quirks. Here are the answers to some of the most common queries to help you grow them with confidence.

Can double bloom lilies actually produce two flowers per stem?

Yes! Unlike single-stem lilies, double bloom varieties (like ‘Black Out’ or ‘Stargazer’) are bred to produce two buds per stem. However, the second bloom often appears after the first one fades, so you’ll enjoy a longer display. Pro tip: Deadhead the first bloom to encourage the second!

How long does it take for double bloom lilies to flower after planting?

Double bloom lilies typically take 60–90 days to flower from planting bulbs, depending on your climate and growing conditions. If planted in spring, expect blooms by mid-to-late summer. For year-round color, plant bulbs in fall (6–8 weeks before frost) for a spring show.

Why aren’t my double bloom lilies producing a second flower?

If your lilies are only blooming once, check these factors:

• Light: They need 6+ hours of sun daily—partial shade can reduce blooms.
• Water: Overwatering or soggy soil can stress the plant, while drought may stunt growth.
• Fertilizer: Use a balanced bulb fertilizer (like 10-10-10) when planting and again in spring.
• Age: Younger bulbs may only produce one bloom; give them a year or two to mature.

Are there any low-maintenance alternatives to double bloom lilies?

If double bloomers seem high-maintenance, try these easy-care alternatives:

• Daylilies (Hemerocallis): Perennial, drought-tolerant, and produce multiple blooms per stem.
• Bearded Iris: Thrives in heat, blooms once (but prolifically), and comes in bold colors.
• Canna Lilies: Tropical, fast-growing, and rebloom with minimal fuss.

Can I replant double bloom lilies after they’ve finished blooming?

After blooming, leave the foliage until it yellows (about 6–8 weeks) to let the bulb store energy. Then, dig up and divide bulbs if crowded (every 3–4 years). Replant in well-draining soil with compost, and water lightly until new growth appears. Bonus: Dividing bulbs can increase future blooms!

Wrapping up and next steps

Double bloom lilies are a gardener’s dream—offering two stunning flowers per stem and year-round beauty with the right care! 🌸 Whether you’re a beginner or a seasoned grower, their vibrant colors and resilience make them a must-have.

With proper soil, sunlight, and a little patience, you’ll enjoy double the blooms for seasons to come.

Ready to transform your garden? Start by planting your bulbs this fall or explore our full guide for step-by-step tips. Happy gardening—your future blooms are waiting! 🌱