Alyssum is a small, attractive, hardy annual that blooms in the summer and is easy to grow. It is also known by various common names, including sweet alyssum or Alison due to its rich, sweet aroma and “carpet of snow” for its abundance of tiny white blooms. There are variations with pink and purple blooms in addition to white ones, and the flowers are frequently developed in such a way that the thin, lance-shaped green leaves are hardly noticeable. Sweet alyssum is among the most adaptable annuals for gardens. So, read to learn how to grow alyssum at home.
See also: How to grow and take care of blueberry plants?
Alyssum: Key facts
| Common Name | Alyssum, Sweet Alyssum, Carpet Flower |
| Botanical Name | Lobularia maritima |
| Family | Brassicaceae |
| Plant Type | Perennial |
| Mature Size | 4 to 6 inches tall and 6 to 9 inches wide |
| Sun Exposure | Full sun, partial shade |
| Soil Type | Rich, loamy soil |
| Soil pH | Neutral |
| Bloom Time | November- January |
| Native Area | Europe, Asia, and northern Africa |
| Toxicity | Non-Toxic to humans and pets |
Alyssum: How to grow?
Sweet alyssum will bloom and multiply within two months of seeding because of its rapid growth. To include sweet alyssum in the garden, use these tips:
- Before the final frost, sow the seeds
A few weeks before the last frost, start alyssum seeds indoors. Once the seedlings are robust, move them outside. Alternatively, sow the seeds outdoors in the spring once the risk of frost has passed.
- Allow space for the plants to grow
To prevent overpopulation, ensure six to twelve inches between each plant.
- Sow the seeds in either full sun or light shade
The seeds will germinate more readily if they are exposed to sunlight.
- Place the seeds in a soil that drains properly
After planting, for a period of 7 to 20 days, keep the soil damp until the seeds sprout.
Alyssum: Care tips
In terms of care, sweet Alyssum is almost unrivalled. It can withstand cold weather. It also explodes into bloom again as temperatures cool, even if it may slow down during the summer’s heat.
The blossoms are related to mustard and cabbage and have a strong, honey-like scent. In milder climatic conditions, they will self-sow and produce vibrant colours yearly. Although aphids will appear when the plant is stressed, sweet alyssum is ordinarily trouble-free.
Light
Sweet Alyssum dislikes extended dry spells and prefers total sun exposure. This plant will do best in an afternoon shaded spot if your environment is sweltering and dry. Choose a location for your sweet alyssum that will allow it to receive six to eight hours of sunlight each day.
Soil
Rich, well-draining soil is ideal for sweet alyssum plant growth. In addition to sandy beaches and dunes, they can be planted in a wide variety of places. Together with these surfaces, it can grow in cracks in walls or sidewalks, on slopes, and even on farmed fields. Soils that are too wet or have insufficient drainage will not support healthy plant life.
Water
Water sweet alyssum plants once a week, more often on hot days or during dry spells. Give them at least one inch of water per week. Make sure that the water runs off easily. Water sweet alyssum extra if you plant it in a stony area or anywhere that dries out fast.
Temperature and humidity
Despite the short lifespan of the plants, gardeners can cultivate sweet alyssum year-round in temperate climates. Though hybrid types may not resemble their parent plant, they are usually vigorous self-seeders. Although it may appear that the same plants are thriving throughout the year, fresh seedlings are actually taking their place.
Fertiliser
Fertiliser is usually unnecessary for in-ground sweet alyssum plants unless the soil is very poor. Water soluble and well-balanced fertilisers must be fed to container-grown plants once a month. When planting seeds, incorporate a time-release fertiliser into the soil. Apply once more to encourage new growth once the blooms have finished. Rich foliage and fewer blossoms can result from overfertilization.
Alyssum: Potting and repotting
Container gardening is an excellent way to raise sweet alyssum. Use high-quality potting soil and ensure the pot has drainage holes at the bottom so that extra water may flow when growing in a container. It’s famous for window boxes and hanging baskets, either by itself or with other plants that require comparable maintenance, such as petunias.
When transplanting, fill the container with dirt, excavate a hole the same size as the existing root ball, place the root ball in the hole, and then cover it with more soil. Make sure there are two inches or more separating the soil line from the rim of the container.
Alyssum: Toxicity
The flowering plant Alyssum is usually safe for people and animals to consume. On the other hand, consumption could result in a minor upset stomach. Avoiding ingestion is advised, particularly for those who have a history of plant allergies. Like any plant, sensitive people may become irritated if they come into contact with it. Even while it’s not extremely dangerous, you should still use caution and keep it out of the reach of young children and curious dogs.
FAQs
Is Alyssum toxic to pets or humans?
Alyssum is generally non-toxic, but ingestion may cause mild gastrointestinal upset.
Can Alyssum be harmful to skin?
Contact with Alyssum may cause irritation in sensitive individuals.
How should Alyssum be cared for?
Plant in well-draining soil, water regularly, and provide sunlight. Prune to encourage bushiness.
What are common Alyssum varieties?
Sweet Alyssum (Lobularia maritima) and Basket-of-Gold Alyssum (Aurinia saxatilis) are popular choices.
Is Alyssum suitable for indoor cultivation?
Alyssum thrives outdoors; however, it can be grown indoors with proper sunlight and care.
How can Alyssum be propagated?
Alyssum can be easily propagated from seeds or through cuttings.
Does Alyssum attract pollinators?
Yes, Alyssum's fragrant flowers attract pollinators like bees and butterflies.
When is the best time to plant Alyssum?
Plant Alyssum in the spring or fall for optimal growth and blooming.
How often should Alyssum be fertilised?
Fertilise Alyssum sparingly, as it prefers well-drained soil and doesn't require heavy feeding.
Are there any special considerations for growing Alyssum in containers?
Ensure good drainage, use a quality potting mix, and water consistently for successful container cultivation.
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