
Light Needs

Mature Height

Mature Spread
With its clouds of sweet-smelling, tiny white blooms, White Knight® is invaluable in containers and hanging baskets. It is a prolific bloomer from planting to frost. A newer cultivar, it holds up well to summer heat, yet is tolerant of the cool temperatures of fall. It is low growing to a height of 4-6 inches with a mounding habit. White Knight® has won awards for its top performance.
While this Lobularia hybrid doesn’t mind cold nor heat, it is not drought tolerant. It easily recovers from a dry spell, however, when hydrated. It is resistant to disease. This pollinator plant attracts bees and butterflies. Use it as a lovely ground cover in the landscape, especially along the front of a border. Grow it in a large planter that won’t dry out quickly. It is stunning with other blooms in an all-white combination container. It will trail up to 2 feet in a hanging basket.
White Knight® Sweet Alyssum Care
For pots of sweet alyssum use a continuous release fertilizer at planting. No deadheading is required, but you can trim plants back if they spread onto walkways. The plant is a heavy drinker, so water frequently – especially hanging baskets.
In the landscape, plant in average, evenly moist soil in a location that receives part sun to sun.
White Knight® Sweet Alyssum Spacing
Space it 12-18 inches. It will spread 18-24 inches, depending on where you plant it (in a container or in the ground).
White Knight® Sweet Alyssum Information
USDA Hardiness Zones: 9-11 |
Flower Color(s): White |
Bloom Period: Planting To Hard Frost |
Foliage Color(s) Green |
Light Exposure: Partial Sun to Full Sun |
Height Class: Short |
Mature Height: 8-12 Inches |
Mature Spread: 18-24 Inches |
Spacing: 12-18 Inches |
Habit: Trailing |
Watering: Average |
Drought Tolerant: No |
Attracts: Bees, Butterflies |
Container Role: Spiller |
Use Types: Container, Groundcover, Hanging Baskets, Landscape |
Features: Fall Interest, Continuous Bloom or Rebloomer, Deadheading Not Necessary, Pollinator Attractor |
Maintenance: Easy |
Scientific Name: Lobularia hybrid 'Inlbuwikni' USPP 25,210, Can 4,780 |
Common Name: White Knight® Sweet Alyssum |
Other Name(s): |
Plant Type: Annual |
Brand: Proven Winners |
- SKU:
- LOBWKP
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.

Also Known As:
3.5" Container
Plant Age:
~ 6 months
Plant Size:
~ 3"-6"
Pot Size:
~ 4.5"H x 3.75"W
Volume:
~1.42 quarts

Also Known As:
4.25" Container
Plant Age:
~ 6 months
Plant Size:
~ 3"-6"
Pot Size:
~ 4.93"H x 4.25"W
Volume:
~1.56 pints

Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
~1.50 quarts

Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
~2.26-3.73 quarts

We stand behind our plants with industry-leading guarantees to give you peace of mind.
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
All annuals, houseplants & vegetables, we provide a 30-day warranty to ensure that your plants thrive.

Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 31th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: Idaho, AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
If you have any questions about shipping restrictions, feel free to reach out to our team!