The Unexpected Favorite

White wasn't the first color I reached for when designing gardens, but it may be the one I love most now. The Garden Girls like to say “every garden deserves a pop of white” because it makes the other colors stand out.  

Over the years I've fallen in love with white flowers in all forms: annuals, perennials, in beds, in containers, in cutting gardens. But lately it's been white zinnias grown from seed that have truly surprised me. Watching them come up, bloom, and fill a bed with that soft, creamy white has brought me a lot of joy. 

Here's our lineup of white flowers that thrive in Houston and Round Top — annuals and perennials — plus how to use them beautifully in your own garden. 

Note: All photos are from our personal gardens - tried and true white flowers!

Our Favorite White Flowers for Houston & Round Top Gardens

The Perennials: Come Back Year After Year

White Yarrow (Achillea millefolium)

Don't let the delicate look fool you — yarrow is tough as nails. Flat-topped clusters of tiny white flowers bloom in late spring and early summer, spreading across a bed like a soft white cloud. The feathery, ferny foliage is beautiful even when it's not in bloom, and it handles Houston heat, poor soil, and drought without complaint. And pollinators go absolutely wild for it!

White yarrow carpeting a bed alongside fuzzy lambs ear and a spiky yucca. Proof that white is anything but boring!

White Gaura (Oenothera lindheimeri)

Gaura might be our most underused secret weapon. Slender wands of butterfly-shaped white blooms dance in the breeze from late Spring all the way through Fall — it never really stops!

Gaura has a wild, meadow-like quality that looks intentional and effortless at the same time. Plant it in a naturalistic border or let it spill at the front of a bed. It's particularly stunning paired with blue salvia behind it.

White Gaura doing what it does best — floating, dancing, and making everything around it look better!

White Salvia (Salvia nemorosa)

Tall, architectural, and absolutely adored by hummingbirds and bees! White salvia sends up elegant spires of tiny blooms that add real vertical interest to a garden bed. It blooms for months, handles the heat, and looks particularly striking planted in clusters. It’s ribbons of white spikes read as polished and purposeful. One of our favorite plants for giving a garden instant structure.

White salvia in a concrete-edged bed: clean lines, long bloom time, and the pollinators can't get enough!

White Plumbago (Plumbago auriculata 'Alba') 

One of our absolute go-to plants for Houston landscapes. White plumbago blooms spring through fall, handles heat with grace, and spreads into a gorgeous soft mounding shape. It pairs beautifully with silver foliage like lamb's ear and looks stunning cascading over garden borders. Low maintenance, drought tolerant once established, and butterflies love it. If you only add one white perennial this season, make it this one.

White plumbago nestled alongside silver lamb's ear and bright lights cosmos.  This is why we always say: plant white flowers where you spend your evenings.

White Lantana (Lantana camara 'White')

If you want a plant that simply will not quit, white lantana is your answer. It blooms from spring through the first frost, tolerates full sun and heat, and attracts every pollinator in the neighborhood. The creamy white blooms add a cottage feel to any bed and look incredible spilling over the edges of raised beds, walls, and pathways.

White lantana is also one of the best "connector" plants we use — tucked at the base of taller, bolder flowers, it ties a whole bed together without competing for attention.

White lantana spilling over a classic brick wall, lush and full. A plant that truly earns its place.

Annuals: Seasonal Stars Worth Replanting

White Zinnia (Zinnia elegans & Zinnia angustifolia)

White zinnias come in two very different personalities, and we love them both!

The large-flowered varieties (like 'Benary's Giant White' - seeds from Johnny’s seeds) produce big, fluffy, creamy-white blooms on tall stems that are incredible for cutting. Mass them together and the effect is breathtaking — a sea of white that stops people in their tracks.

Large white zinnias filling a bed along a black fence. This is the kind of abundance that makes a garden feel lush and intentional.

The smaller Profusion, or angustifolia, types are a completely different look: petite, daisy-like white blooms with golden centers, mounding into a tidy, full plant that never seems to stop blooming. They're heat-proof, disease-resistant, and one of the most reliable annuals we plant.

White “cupcake” Cosmos (Cosmos bipinnatus) - Seeds from Johnny’s seeds.

Dreamy, delicate, and impossibly graceful. White cosmos has feathery foliage and paperwhite blooms that dance in the slightest breeze. They bloom spring through fall from seed, are incredibly easy to grow, and add an airy cottage-garden quality that photographs beautifully. A must for cut flower gardens — snip them often and they'll reward you with even more blooms!

White cosmos are perfection in a raised bed.

White Vinca (Catharanthus roseus)

The unsung hero of Houston summer annuals. I like to call in the “workhorse” flower of Houston.  Comes in both upright or trailing varieties.  White vinca handles heat and humidity like a champion, blooms continuously without deadheading, and fills in beds with a clean, bright carpet of white. Plant it in full sun and largely leave it alone — it genuinely does the work for you. An excellent choice for high-visibility spots where you need dependable, season-long color.

White vinca and rosemary together in Jill’s Round Top garden.

Ready to Go White?

If you're ready to add some white to your landscape, whether it's a single gaura anchoring a border or an entire white cutting garden, we'd love to help you design it!

Click here to schedule a consultation, or follow along on Instagram where we're sharing photos from our current white flower installations.

Let yourself grow!🌿