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Sweet Alyssum Snow Princess (Proven Winners)
Overview
Sweet Alyssum ‘Snow Princess’® (Lobularia) is a multi-award-winning horticultural breakthrough that redefined the species. Unlike traditional Alyssum, which often struggles and goes to seed in summer heat, ‘Snow Princess’ is a sterile, incredibly vigorous hybrid that blooms non-stop from spring through autumn. It is renowned for its mounds of fragrant white flowers and its ability to grow at an exponential rate, quickly overtaking garden spaces with a snowy, carpet-like effect.
Plant characteristics
Mature size: 4–8 inches in height; spreads or trails up to 24–36 inches.
Flower: Clusters of tiny, four-petaled pure white flowers that emit a strong, honey-like fragrance.
Foliage: Narrow, lance-shaped green leaves that are often hidden beneath the dense profusion of blooms.
Hardiness: Annual; remains evergreen and hardy in USDA zones 9–11.
Light requirements
This variety performs best in Full Sun (6+ hours of direct light), which encourages the densest flower coverage. However, unlike older varieties, it is remarkably tolerant of Part Shade, though the growth may be slightly less compact in lower light.
Water requirements
‘Snow Princess’ has a high water demand due to its rapid growth rate. It requires consistent moisture and should not be allowed to dry out completely. In containers, it may require daily watering during the height of summer to prevent wilting and scorched lower foliage.
Soil and drainage
Prefers loose, well-drained soil rich in organic matter. While it is adaptable to various soil types, excellent drainage is essential to prevent root rot, especially given its frequent watering needs.
Fertilizer
This is a high-energy plant that requires frequent feeding to sustain its massive bloom output. Use a balanced water-soluble fertilizer every week or two throughout the growing season. If the plant begins to look pale or flowering slows, increase the frequency of fertilization.
Maintenance and pruning
Because this hybrid is sterile, it does not set seed, which is why it continues to bloom without the need for deadheading. If the plant becomes too large for its space or looks "open" in the center, it can be sheared back by one-third to encourage a fresh, tight burst of new growth.
Uses and design notes
‘Snow Princess’ is a powerhouse in landscape and container design:
The Ultimate "Spiller": It will quickly trail over the edges of large containers and hanging baskets, creating a "waterfall" of white.
Fragrance Gardens: Plant near walkways or patios where the intense honey scent can be enjoyed.
Mass Planting: Works beautifully as a fast-filling groundcover in garden beds to suppress weeds and create a unified visual base.
Summary
Sweet Alyssum ‘Snow Princess’ is a game-changer for gardeners who love the classic fragrance of Alyssum but want season-long endurance. Its combination of heat tolerance, sterile nature, and sheer "flower power" makes it one of the most reliable and high-impact white flowering plants available for modern landscapes.
4.25” Proven Winners Eco Pot
NOTE: Available for pickup after 5/15
Overview
Sweet Alyssum ‘Snow Princess’® (Lobularia) is a multi-award-winning horticultural breakthrough that redefined the species. Unlike traditional Alyssum, which often struggles and goes to seed in summer heat, ‘Snow Princess’ is a sterile, incredibly vigorous hybrid that blooms non-stop from spring through autumn. It is renowned for its mounds of fragrant white flowers and its ability to grow at an exponential rate, quickly overtaking garden spaces with a snowy, carpet-like effect.
Plant characteristics
Mature size: 4–8 inches in height; spreads or trails up to 24–36 inches.
Flower: Clusters of tiny, four-petaled pure white flowers that emit a strong, honey-like fragrance.
Foliage: Narrow, lance-shaped green leaves that are often hidden beneath the dense profusion of blooms.
Hardiness: Annual; remains evergreen and hardy in USDA zones 9–11.
Light requirements
This variety performs best in Full Sun (6+ hours of direct light), which encourages the densest flower coverage. However, unlike older varieties, it is remarkably tolerant of Part Shade, though the growth may be slightly less compact in lower light.
Water requirements
‘Snow Princess’ has a high water demand due to its rapid growth rate. It requires consistent moisture and should not be allowed to dry out completely. In containers, it may require daily watering during the height of summer to prevent wilting and scorched lower foliage.
Soil and drainage
Prefers loose, well-drained soil rich in organic matter. While it is adaptable to various soil types, excellent drainage is essential to prevent root rot, especially given its frequent watering needs.
Fertilizer
This is a high-energy plant that requires frequent feeding to sustain its massive bloom output. Use a balanced water-soluble fertilizer every week or two throughout the growing season. If the plant begins to look pale or flowering slows, increase the frequency of fertilization.
Maintenance and pruning
Because this hybrid is sterile, it does not set seed, which is why it continues to bloom without the need for deadheading. If the plant becomes too large for its space or looks "open" in the center, it can be sheared back by one-third to encourage a fresh, tight burst of new growth.
Uses and design notes
‘Snow Princess’ is a powerhouse in landscape and container design:
The Ultimate "Spiller": It will quickly trail over the edges of large containers and hanging baskets, creating a "waterfall" of white.
Fragrance Gardens: Plant near walkways or patios where the intense honey scent can be enjoyed.
Mass Planting: Works beautifully as a fast-filling groundcover in garden beds to suppress weeds and create a unified visual base.
Summary
Sweet Alyssum ‘Snow Princess’ is a game-changer for gardeners who love the classic fragrance of Alyssum but want season-long endurance. Its combination of heat tolerance, sterile nature, and sheer "flower power" makes it one of the most reliable and high-impact white flowering plants available for modern landscapes.
4.25” Proven Winners Eco Pot
NOTE: Available for pickup after 5/15