Lagerstroemia Seeds

Fill Your Summer Landscape with Months of Nonstop Color — Lagerstroemia Seeds

You know that tree you see all over the South — the one covered in these insanely vivid flower clusters in the dead of July when everything else in the garden is just trying to survive the heat? That's lagerstroemia. Crape myrtle. Whatever you wanna call it, it's the undisputed queen of summer-blooming trees, and for good reason. While most flowering trees do their thing for a couple weeks in spring and then call it a year, crape myrtles just keep going. And going. We're talking sixty, ninety, sometimes over a hundred days of continuous bloom. In July. In August. When it's a hundred degrees outside and your hydrangeas look like sad dishcloths. Crape myrtles don't care. They just keep throwing out those ridiculous flower panicles like it's nothing.

At SeedOrganica, we carry fresh, quality-tested lagerstroemia seeds for home gardeners who want to grow these showstoppers from scratch. And yeah, you absolutely can grow crape myrtles from seed — it's actually one of the more fun tree-growing projects because the seedlings develop quickly, they're hardy, and you get to see what color flowers you end up with (seed-grown crape myrtles can surprise you with color variations, which is honestly part of the excitement). Whether you're landscaping a sunny backyard, lining a driveway, filling a large container on a patio, or just want a single gorgeous specimen tree, lagerstroemia seeds for planting are your ticket to summers that look like a watercolor painting. Plus the fall foliage. Plus the gorgeous bark. This tree gives you something beautiful literally every season. It's almost unfair to other trees.

Explore Our Lagerstroemia Seed Varieties

Crape myrtles come in a huge range of sizes, flower colors, and growth habits — from knee-high dwarf shrubs to full-on thirty-foot trees. That kind of versatility is what makes them so popular with home gardeners across the country. Our collection covers the major types so you can match the right lagerstroemia to your space, your climate, and the vibe you're going for.

Lagerstroemia indica (Common Crape Myrtle) is the classic species — the one that's been planted across the American South for generations. This is the crape myrtle most people picture: a small to medium tree, typically fifteen to twenty-five feet tall at maturity, with a graceful multi-trunked form and those iconic crinkled flower clusters in shades of pink, red, purple, lavender, and white. The flowers have this papery, crepe-like texture — that's where the common name comes from — and they appear in massive panicles at the tips of new growth starting in midsummer. When the blooms fade, the smooth, mottled bark steals the show — peeling away in patches to reveal cinnamon, gray, and cream-colored inner bark that's stunning in winter. And the fall foliage? Brilliant oranges, reds, and yellows that rival any New England maple. Lagerstroemia indica is a four-season tree, full stop. It does best in zones 7 through 9, though some gardeners push it into zone 6 with protection.

Lagerstroemia speciosa (Giant Crape Myrtle / Queen's Crape Myrtle) is the big sister. Way bigger. In tropical and subtropical climates, this species can reach forty to sixty feet tall and produces absolutely massive flower panicles in lavender-pink to purple. The individual flowers are larger than those of Lagerstroemia indica, and the overall effect is jaw-dropping when the tree is in full bloom. The leaves are bigger too — thick, leathery, and glossy — and they turn gorgeous shades of red and orange before dropping in fall. Queen's crape myrtle needs more warmth than the common species — it really thrives in zones 9 through 11 and isn't gonna survive cold winters. But if you're in south Florida, south Texas, coastal California, or Hawaii? This tree is the ultimate statement piece. It's the one that makes your yard look like a tropical botanical garden.

Lagerstroemia fauriei (Japanese Crape Myrtle) is the bark tree. Now, it does bloom — small white flower panicles in summer — but the real attraction is the bark. We're talking the most incredible peeling, exfoliating bark you've ever seen on a tree. Cinnamon-red, chestnut brown, and cream, all in swirling, mosaic-like patterns. It looks like living art. In winter, when the leaves are gone, this tree absolutely glows. Lagerstroemia fauriei is also significantly more cold-hardy than the common crape myrtle — it handles zone 6 with less drama — and it brings excellent disease resistance, especially to powdery mildew, which is a common headache for indica types. A lot of modern hybrid crape myrtles use fauriei as a parent specifically for that disease resistance and bark beauty. If your priority is winter interest and low-maintenance toughness over maximum flower power, fauriei is a phenomenal choice.

Dwarf / Miniature Crape Myrtle Mix — not every gardener has room for a twenty-five-foot tree, and that's totally fine. Dwarf lagerstroemia varieties stay between three and six feet tall, making them perfect for foundation plantings, borders, mass plantings, and — this is the big one — containers. A dwarf crape myrtle in a nice pot on a sunny patio is an absolute showstopper from July through September. The flower colors in a seed mix can range from deep watermelon pink to rich red to soft lavender to pure white, so you get a little surprise factor with each plant. The growth habit is dense and bushy rather than tree-form, and the blooms are proportionally large for the plant size, so you still get that knockout flower display without needing a big yard. These are outstanding for gardeners in apartments, condos, or townhomes with limited outdoor space.

Lagerstroemia indica × fauriei Hybrids — these are the modern powerhouses. Crosses between indica and fauriei combine the best of both worlds: the heavy, colorful flowering of indica with the disease resistance, cold hardiness, and incredible bark of fauriei. Many of the named cultivars you see at nurseries — the Natchez, Tuscarora, Muskogee types — are indica × fauriei hybrids. Seed-grown hybrids won't be identical to named cultivars, but they'll often inherit that hybrid vigor, improved mildew resistance, and gorgeous multi-season interest. You might get flowers in any color from the pink-red-purple-white spectrum, and the bark characteristics will vary plant to plant. It's like opening presents — each seedling is a little different, and some will be absolutely spectacular. For gardeners who love the idea of discovering their own unique crape myrtle from seed, hybrid seeds are where the magic is.

Crepe Myrtle Color Mix — sometimes you just want color and lots of it. Our color mix includes seeds that can produce plants blooming in reds, pinks, purples, lavenders, and whites. It's ideal for gardeners who want to plant a row or a grouping and get a tapestry of different flower colors all blooming at the same time. Picture a backyard fence line with five or six crape myrtles in different shades all going off simultaneously in August. That's the kind of scene that gets photographed and posted and makes everyone ask "what are those trees?" Plant the mix, let nature surprise you, and keep the colors you love most. Thin out or transplant the ones that don't work for your aesthetic. It's basically a garden lottery where every ticket is a winner.

Growing multiple lagerstroemia varieties gives you flexibility and visual depth that a single tree just can't match. A tall indica specimen in the center of the yard, some dwarf types in containers flanking the front door, maybe a fauriei off to the side for that killer winter bark — that's a landscape with year-round interest and serious curb appeal. And starting them all from seed? You're building something from the ground up. There's nothing quite like it.

Gardening Insights for Growing Lagerstroemia from Seed

Here's the thing about growing crape myrtles from seed that a lot of people don't realize — it's actually pretty easy. Like, weirdly easy for such a stunning tree. The seeds germinate readily, the seedlings are vigorous, and you can have a blooming plant within just a couple of years if conditions are right. Let's walk through the basics.

Sunlight: Full sun. All the sun. This is non-negotiable if you want flowers. Lagerstroemia needs a minimum of six hours of direct sunlight daily, and eight or more is better. The more sun these trees get, the more prolifically they bloom and the better they resist diseases like powdery mildew. Shade encourages mildew and dramatically reduces flowering — a shaded crape myrtle is a sad crape myrtle. Plant them in the most open, sun-drenched spot you've got. South-facing and west-facing exposures are ideal. Heat reflected off driveways, walls, and fences actually benefits them — crape myrtles are heat lovers through and through.

Soil: Lagerstroemia is pretty flexible with soil types. It grows in clay, loam, sandy soil — as long as drainage is decent. Waterlogged soil is the main enemy. Consistently wet roots lead to root rot and decline. If your soil is heavy clay, amend with compost and make sure you're not planting in a low spot where water collects after rain. A slightly acidic to neutral pH — around 5.5 to 7.0 — is ideal, but crape myrtles tolerate a range. They're honestly not divas about soil. Average garden soil with reasonable drainage is usually just fine.

Starting from seed: Lagerstroemia seeds are small — tiny dark brown or black seeds that come out of those round, woody seed capsules you see on the tree in fall and winter. They don't need scarification, which is nice. They do benefit from a cold stratification period to improve germination rates. Place seeds in a damp paper towel inside a sealed plastic bag and refrigerate for about four to eight weeks. This mimics winter dormancy and primes the seeds to germinate when they hit warmth.

After stratification, sow seeds on the surface of moist seed-starting mix or barely cover them — they're small enough that burying them too deep can prevent germination. Press them gently into the soil surface. Keep the tray or pot warm — 70 to 80°F is ideal — and consistently moist. A clear humidity dome or plastic wrap helps hold in moisture. Place in bright, indirect light. Germination usually happens within fourteen to twenty-one days, though some seeds take a little longer. Once seedlings have two or three sets of true leaves, pot them up into individual containers.

Growth rate: Crape myrtle seedlings are surprisingly fast growers in warm conditions. First-year seedlings can easily reach twelve to eighteen inches tall with good light, consistent watering, and regular feeding. By year two or three, many seed-grown crape myrtles will attempt their first blooms — especially the dwarf types, which can flower in their first or second summer if they're happy. Tree-form varieties take a bit longer to reach flowering maturity, but you're typically looking at two to four years from seed to first flowers. For a tree, that's remarkably fast.

Transplanting outdoors: Move seedlings outside after all danger of frost has passed and they've been hardened off for a week or so. Plant in full sun, in well-draining soil, and water regularly during the first growing season while the root system establishes. Once established — usually after the first full year in the ground — crape myrtles become quite drought-tolerant, which is one of their big selling points in hot climates. They're the kind of tree that thrives on heat and doesn't complain when you forget to water for a week in August.

Cold hardiness and overwintering: Standard Lagerstroemia indica is reliably hardy in zones 7 through 9. In zone 6, crape myrtles often die back to the ground in winter but resprout from the roots in spring and still manage to bloom on new growth by midsummer — this is called "dieback culture" and it actually works pretty well. You basically treat it as a big perennial rather than a permanent tree structure. Heavy mulching over the root zone in fall helps protect roots through cold snaps. In zones 5 and colder, container growing is the way to go — let the tree enjoy the summer outdoors, then bring it into a cool garage or basement for winter dormancy.

Pruning — let's talk about this: I'm just gonna say it — stop "crape murdering" your trees. That heavy-handed practice of chopping crape myrtles back to ugly knobby stubs every winter? It's not necessary and it actually damages the tree's natural form. Crape myrtles bloom on new growth, so they don't need aggressive pruning to flower. Light pruning — removing spent flower heads in summer to encourage a second flush of blooms, thinning out crossing or inward-facing branches in late winter, and removing suckers from the base — is all you need. Let the tree develop its natural vase shape with those gorgeous smooth trunks. That architecture is half the beauty of a mature crape myrtle. Don't hack it. Please. Just let it be beautiful.

Frequently Asked Questions