White Knight Sweet Alyssum (Lobularia 'White Knight')
lob-yew-LAR-ee-ah 'White Knight'

Perennial (usually grown as an annual near you)

Masses of fragrant white blooms cover green foliage from planting to hard frost.  Very heat tolerant, great in landscapes and containers.


This plant is probably not winter-hardy outdoors where you live.
Highlights Award Winner Fragrant Flower Continuous Bloom or Rebloomer Long Blooming Fall Interest Heat Tolerant Deadheading Not Necessary

Plant Data

Mature Size 8 - 12 inches tall. 12 - 18 inches wide.
Sun Exposure Partial Sun - Full Sun
Moisture Tolerance Medium -
Zones 9a - 11b (Usually hardy to 20° F)
Tags Annual in Chicago, Attracts Butterflies, Attracts Hummingbirds, Attracts Pollinators, Attracts Wildlife, Deer Resistant, Fragrant, Full Sun, Good for Beginners, Medium, Partial Sun, Perennial, Rabbit Resistant, Showy Flowers, Spillers, Tender Perennial
Flower Color White

Photos of This with...

White Knight Sweet Alyssum, Superbells Cherry Star Calibrachoa, Superbena Royale Peachy Keen Verbena, Goldilocks Rocks Bidens, Superbells Yellow Million Bells, Pequena Rosalita Spider Flower, Vermillionaire Firecracker Plant, Stratosphere Pink Picotee Gaura, Sweet Caroline Light Green Sweet Potato, Sweet Caroline Sweetheart Lime Sweet Potato, Royale Pina Colada Lantana, Sunsatia Coconut Nemesia, Sunsatia Lemon Nemesia, Graceful Grasses Purple Fountain Grass, Sky Rocket Fountain Grass, Supertunia Black Cherry, Supertunia Priscilla Petunia, Supertunia Royal Velvet Petunia, Supertunia White Petunia, ColorBlaze Alligator Tears Coleus, Superbena Royale Chambray Verbena, Superbena Royale Iced Cherry Verbena, Superbena Violet Ice Verbena, Superbena Whiteout Verbena,
Potential Substitutions
Lobularia 'Inlbusnopr' SNOW PRINCESS
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Pricing and Availability History

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Limited Availability

We try very hard to source exactly what you’d like, but sometimes growers run out of plants! While this variety is a great deal at the price shown, we know that it has limited availability. If you want the plant even if it might be more expensive, or in a different size or quantity -- after you place your order, just send us a quick note at help@northshoreplantclub.com. Then, we’ll try to get you some version of this from one of our growers. And if we can’t get it from anywhere, of course, we’ll send a refund!

Field-Grown vs. Greenhouse-Grown Plants

Plants which are well-adapted to our local climate are most often field-grown (outside). Field-grown plants are generally cheaper and have the advantage of already somewhat acclimated to our cold winters, but that means they’re not artificially far along in the spring and tend to bloom at the normal time in our area.

Spring annuals and tender perennials are typically grown in Greenhouses so they can be ready and luxurious exactly when customers want them. Some perennials are also “forced” into early bloom in greenhouses. In May, there can be a very big difference between field-grown and greenhouse-grown plants of the same type. The latter typically look good right away (so they’re a great choice where that’s important), but we typically pay a premium for it.

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No Pricing or Availability Right Now

We order from a rotating cast of the best nurseries in the Great Lakes region. It looks like we've offered this plant in the past, but the nurseries we're working with this week don't appear to have it in stock at the moment.

Our goal is to bring as many plants together under "one roof" as possible, so we'll try hard to make it available again in the future!