Lobularia maritima
- Common name
- Sweet alyssum
- Taxonomy
- Family: Brassicaceae · Genus: Lobularia
Still missing: plant type, native distribution, natural habitat, height / growth form, flowering period, growth & dormancy period.
Tips & experience from members
What worked for you? Your plant’s growing conditions are attached automatically, so others can see who it works for.
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How members water it
Not enough logs yet: at least 3 plants with regular watering logs are needed (now: 0). Waterings logged in Care feed this – anonymised and aggregated.
How it thrives
No monthly schedule is shown because cultivar-/species-level data is not yet sufficient. The general values above are guidance only.
Lobularia tip: After a midsummer lull, shear it back by a third and it carpets with flowers again.
Sweet alyssum – what to know
Sweet alyssum (Lobularia maritima) – family: Brassicaceae, genus: Lobularia. Care guidelines: light: full sun; water: medium; min. -5 °C. It is not known to be toxic to cats or dogs.
All Lobularia species in the catalog →Detailed toxicity data →
Frequently asked questions
How often should I water Sweet alyssum?
Moderately: water when the top 2–3 cm of soil is dry, and never let it sit in standing water.
How much light does Sweet alyssum need?
It needs plenty of direct sun – the sunniest window, or outdoors in summer, suits it best.
How cold can Sweet alyssum get?
Frost-hardy to about -5 °C – it can overwinter outdoors in many climates.
Is Sweet alyssum toxic to cats and dogs?
It is not known to be toxic to cats or dogs.
When does Sweet alyssum flower?
According to the general guideline for the genus Lobularia: Typical flowering time: May, June, July, August, September, October.
What members’ data shows
When does it really bloom?
No blooms logged yet. If yours flowers, your data will be the first!
Average watering interval
Not enough watering logs yet. Waterings logged in the care hub feed this chart.
Questions about this species
Care data is for guidance only.

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