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Lobularia maritima Snow Crystals

Lobularia maritima Snow Crystals
Sweet Alyssum, Sea Alyssum, Snow-white carpet, Sweet Allison, Snow in Summer, Snowdrift

4,5/5
3 reviews
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1 reviews
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The young plants have taken well and have quickly grown. The flowers bloomed for quite a while and survived the winter without any issues. They are already in flower again. Thank you!

Stéphanie, 28/04/2022

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This plant carries a 6 months recovery warranty

More information

This annual alyssum produces a uniform snow-white carpet thanks to its immaculate large flowers covering its compact vegetation perfectly. It quickly forms cushioning mats that work wonders in borders, hanging baskets, and flower pots. Additionally, it is resistant to bad weather and drought, making it suitable for seaside and dry gardens. 
Flower size
1 cm
Height at maturity
15 cm
Spread at maturity
25 cm
Exposure
Sun
Hardiness
Hardy down to -9°C
Soil moisture
Dry soil, Moist soil
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Best planting time April
Recommended planting time March to June
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Flowering time May to August
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Description

The Lobularia maritima procumbens, also called Alyssum Snow Crystals or Sweet Alyssum, is a robust annual ground cover plant with beautiful flowers. It grows quickly, forming uniform snowy carpets with large, immaculate flowers that cover its compact vegetation perfectly. These fragrant and cushion-like mats are perfect for borders, rock gardens, hanging baskets, and flower pots. Despite its delicate appearance, this small plant is highly resilient and can withstand adverse weather conditions and drought.

 

Sweet Alyssum is an annual plant belonging to the Brassicaceae family, like mustard and rapeseed. It is native to southern Europe and the Mediterranean region. This plant is widely cultivated in gardens and has given rise to many ornamental horticultural varieties. Alyssum 'Snow Crystals' is a herbaceous woody-based tuft that can grow up to 15 cm (5.9 in) tall and 25 cm (9.8 in) wide. It may look like a weed at first, but then it transforms into an imposing clump of branched stems. It is adorned with petite, glaucous green, alternate, simple, and entire leaves that are narrow (from lanceolate to linear) and quite hairy. It blooms from June to September, covering the plant with white flowers with a delicious honey fragrance.

 

Despite their versatility and ability to establish themselves easily in the sun and well-drained soils, sweet alyssums are often overlooked in garden designs. These plants thrive in well-drained soil and sunshine, making them ideal for covering the tops of walls alongside aubrietas or Alyssum 'Basket of Gold,' filling spaces in rockeries at the base of drought-tolerant shrubs like lavender, rock roses, shrubby salvias, or rosemary. Planted along pathways, sweet alyssums add a charming touch to the garden. Lobularia 'Crystal Snow' can be grown in pockets between wall stones and form immaculate cascades that pair well with garden irises or wall bellflower Campanula portenschlagiana for a stunning vertical display. Sweet alyssums work wonderfully in pots and flower containers and combine well with surfinias, calibrachoas, or even ivy geraniums.

 

 

Note: Our plug plants are intended for experienced gardeners. Upon receipt, transplant and store them in a sheltered area such as a veranda, greenhouse or a cold frame with a temperature above 14°C for a few weeks before planting them outdoors. Wait until the risk of frost has passed before planting them outside.

 

Lobularia maritima Snow Crystals in pictures

Lobularia maritima Snow Crystals (Flowering) Flowering
Lobularia maritima Snow Crystals (Foliage) Foliage
Lobularia maritima Snow Crystals (Plant habit) Plant habit

Flowering

Flower colour white
Flowering time May to August
Inflorescence Cluster
Flower size 1 cm
Fragrance Fragrant, parfum sucré de miel
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Annual
Foliage colour green

Plant habit

Height at maturity 15 cm
Spread at maturity 25 cm
Growth rate fast

Botanical data

Genus

Lobularia

Species

maritima

Cultivar

Snow Crystals

Family

Brassicaceae

Other common names

Sweet Alyssum, Sea Alyssum, Snow-white carpet, Sweet Allison, Snow in Summer, Snowdrift

Origin

Cultivar or hybrid

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Planting and care

Young plug plants benefit from being transplanted into individual pots to help them become stronger before being permanently planted outdoors. It is important to protect them from frost. Once they have gained enough strength, you can plant your 'Crystal Snow' Lobularia in a spot that receives plenty of sunshine or partial shade, either in pots or in the ground. These plants are easy to grow and thrive in light, neutral to alkaline soil. Adding well-rotted compost to very poor soil can also be helpful. They can tolerate dry soil quite well and are resistant to heat. If you choose to plant your alyssums in pots, make sure to water them regularly.

Planting period

Best planting time April
Recommended planting time March to June

Intended location

Suitable for Meadow, Rockery
Type of use Edge of border, Container, Slope
Hardiness Hardy down to -9°C (USDA zone 8b) Show map
Ease of cultivation Amateur
Planting density 4 per m2
Exposure Sun
Soil pH Neutral, Calcareous
Soil type Chalky (poor, alkaline and well-drained), Silty-loamy (rich and light)
Soil moisture Dry soil, Moist soil, well-draining, fertile, light

Care

Pruning No pruning necessary
Disease resistance Very good
4,5/5
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