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Snow Princess® Sweet Alyssum Lobularia hybrid

Flower Season
  • Spring
  • Summer
Mature Size
16" 4' 41cm 1.2m
Height: 10" - 16"
Spread: 2' - 4'
Height: 25cm - 41cm
Spread: 61cm - 1.2m
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  • Details

    10 - 16 Inches
    18 - 24 Inches
    24 - 48 Inches
    25cm - 41cm
    46cm - 61cm
    61cm - 1.2m


    Abundant, highly fragrant small white blooms all season long; vigorous plant that thrives in hot or cold

    Best Seller
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    Fragrant Flower
    Heat Tolerant
    Deadheading Not Necessary


    Plant Type: 
    Height Category: 
    Garden Height: 
    10 - 16 Inches 25cm - 41cm
    Trails Up To: 
    24 Inches 61cm
    18 - 24 Inches 46cm - 61cm
    24 - 48 Inches 61cm - 1.2m
    Flower Colors: 
    Flower Shade: 
    Foliage Colors: 
    Foliage Shade: 
    Container Role: 

    Plant Needs

    Light Requirement: 
    Part Sun to Sun

    The optimum amount of sun or shade each plant needs to thrive: Full Sun (6+ hours), Part Sun (4-6 hours), Full Shade (up to 4 hours).

    Maintenance Category: 
    Bloom Time: 
    Planting To Hard Frost
    Hardiness Zones: 
    9a, 9b, 10a, 10b, 11a, 11b
    Water Category: 
    Needs Good Drainage
    Soil Fertility Requirement: 
    Average Soil
    Uses Notes: 

    Great in containers and landscapes

    Maintenance Notes: 

    No dead-heading necessary for continuous bloom.

    Snow Princess is cold tolerant and heat tolerant, she bloomed through the summer at the Dallas Arboretum and the University of Georgia trial garden. She is very vigorous so pair her with other vigorous.

    Snow Princess is a "heavy drinker" and will prefer evenly moist soil. It will be quick to show drought stress, but should bounce back quickly once re-hydrated. In a hanging basket you should be prepared to water often, maybe more than once a day during warm weather. Plants are easier to keep moist when planted in large planters. Due to her water needs Snow Princess is ideal for use in larger planters. In containers an application of continuous release fertilizer at planting is best. To help maximize performance use applications of a well-balanced water-soluble fertilizer (according to package directions) starting in mid-summer.

    Snow Princess will also perform well in the landscape where she will function as an annual, full sun, groundcover.

    While plants shouldn't need to be trimmed back, if she is taking over your walkway or is looking less than her best a trim can be administered at anytime. Use a sharp pair of scissors or pruning shears as needed.

    A yearly application of fertilizer or compost on garden beds and regular fertilization of plants in pots will help ensure the best possible performance.

    If there's one new plant that should be on everyone's list, it's Snow Princess, a unique breakthrough in the genus for heat tolerance and extended season performance. This sterile Lobularia is extremely vigorous, and because it puts no energy into setting seed it has an incredibly long bloom time. Creates a great hanging basket or window box and is a perfect filler in combinations.

    Winner of IPM Essen (Germany) Best Innovation Award, 2009.
    Winner Gold Medal, Innovert Innovation Competition at the Salon du Vegetal, France 2009

    I am the landscape superintendent of a country club in coastal Wilmington, NC. Our club requires high quality seasonal color display beds that will perform all season long. I like to introduce new varieties in my designs that will meet our requirements. I was so impressed with Snow Princess that I purchased several flats for my house. I planted the Snow Princess behind a retaining wall in mostly sandy soil at the house. Snow Princess is thriving in our hot and humid summer and it kept up the bloom display until the fall. I want to thank Proven Winners for introducing such a fine plant.
    Rick Johnson

    Snow Princess® Lobularia hybrid 'Inlbusnopr' USPP 21,594, Can 4,189
  • 80 Reviews

    Browse reviews from people who have grown this plant.
    • I planted three Snow Princess alyssum plants plus one Cake Pops pink verbena in each of my 16" hanging pots in full sun. The verbenas were a mistake; they were soon overpowered by the alyssum and eventually disappeared. I fertilized every week. The alyssums grew rapidly and soon were tumbling over the sides of the pots. I did minor trimming twice to shape them and eventually got big balls of fluffy white. They definitely do need their water- during the hot weather I watered twice a day. It's the end of September now and they still look great. I also like their pleasant smell. I will definitely plant these again.

      Karen Muse
      , Michigan
      , United States
      , 1 year ago
    • I have been growing sweet alyssum for more than 2 decades in the Deep South; Snow Princess is the only variety that blooms through the summer and doesn’t quit once it gets blisteringly hot. It is one of the few plants I make a point of buying by mail order and paying for shipping since my local shops always get other, inferior varieties. Snow Princess is the only choice for hot locations. Absolutely a phenomenal step forward. Thank you for developing it!

      Jeanne Merchant
      , Alabama
      , United States
      , 2 years ago
    • I LOVE this Snow Princess! New pandemic gardener and first time trying this Snow Princess plant late last summer and it has only gotten bigger and better over our fall/winter. It’s gorgeous! Very fragrant and smells like honey. I have it lining some extra large pots and it has just pillowed and trailed out so beautifully! Easy to care for - likes a lot of water, and I will start feeding it again soon. Didn’t think it would over winter but I’m so glad it has - it’s just so lovely. Love love love it!

      Melissa Clark
      , Texas
      , United States
      , 2 years ago
    • I had seen a variety of Alyssum growing in a brick planter at our local library, every time I walked by I had to stop and enjoy the wonderful fragrance. The smell reminded me of honey, I knew I needed some variety of this plant in my garden. Three seasons ago I found 4” pots of Proven Winners “Snow Princess” at a local nursery and took one home. Not knowing the necessity of full sun for this plant I put it in a hanging basket with only a few hours of morning sun and dappled shade the rest of the time. Over the course of the summer I had a beautiful green full hanging basket but hardly any blooms. Not to be deterred I purchased another 4” pot in the second season, put it in the full sun this time and enjoyed blooms and fragrance for the full season. Third season (2021) I purchased another 4” pot, went to plant it in the same planter as before and noticed the plant from season 2 was scraggly but blooming. Even though Snow Princess is an annual it had lived through our 2020-2021 zone 8b winter. I cut it back, watered and fertilized it and the second year plant produced a marvelous showing of bloom and fragrance. It is now the end of November, 2021 and the Snow Princess is still producing. Next season I plan to introduce it into my landscape. I highly recommend Proven Winners “Snow Princess”.

      , Georgia
      , United States
      , 2 years ago
    • This plant was a real stand out in my garden last summer. I purchased 5 plants in the spring and thought initially they looked so tiny in their pots. Once they got going though they did not quit! From a small plant in a 4" pot to glorious cascading never ending blooms. I had a number of people walking by ask me what they were and have started to receive messages from friends this spring asking what it was so that they can get some this year. The only problem I encountered was a a mid season infestation of spider mites, but luckily one good treatment with insecticidal soap and they were back to blooming. I'll definitely be planting this again. Hopefully my friends will leave some at the garden centre for me lol.

      Cathy Jessup
      , Ontario
      , Canada
      , 3 years ago
    • Acheter 3 plants, n'ont vécus qu'une semaine,pourtant les fleurs qui les accompagnaient sont restées très belles....

      , Canada
      , 3 years ago
    • Lucy Simmons
      , Maine
      , United States
      , 4 years ago
    • Fantastic bloomers. Filled my borders all summer in hot humid heat all day right through frost.

      Rosemarie Simons
      , Massachusetts
      , United States
      , 4 years ago
    • Ericka Bradbury
      , Maine
      , United States
      , 4 years ago
    • Fabulous plant! Bloomed all winter and spring and is still blooming at the end of summer despite our hot (many weeks around or over 100F) and dry weather. I have it planted where it does receive irrigation from drip lines and no overhead watering. I also have it in a container in full sun where it is still green and alive, but has stopped blooming - probably due to the heat and a more stressful environment. I suspect it will start blooming again once it gets a bit cooler. This beats regular alyssum by far!

      Thomas Flowers
      , Texas
      , United States
      , 4 years ago
  • 171 Awards

    Award Year Award Plant Trial
    2013 Best of Breed North Carolina State, JC Raulston Arboretum
    2013 Top Performer Michigan State University
    2013 Leader of the Pack - Summer North Carolina State, JC Raulston Arboretum
    2013 Leader of the Pack - Late Season North Carolina State, JC Raulston Arboretum
    2013 Leader of the Pack - Early Season North Carolina State, JC Raulston Arboretum
    2012 Top Perfomer University of Wisconsin
    2012 Top Performer Colorado State University
    2012 Excellent Performer University Laval
    2012 Top Performer University of Tennessee - Knoxville
    2012 Top Performer Massachusetts Horticultural Society at Elm Bank
  • 19 Recipes

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