Alyssum

Lobularia maritima

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verifiedReviewed by the GreenScout Team

Alyssum is a delicate, low-growing annual prized for its fragrant clusters of tiny white, pink, or purple flowers. Perfect for borders, edging, and containers, it blooms prolifically and attracts pollinators. Plants spread 12–15 inches and create beautiful drifts of color with minimal care.

Common Problems

Select the problem your Alyssum is experiencing to get a treatment guide.

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Wiltingchevron_right

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Root Rotchevron_right

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Yellow Leaveschevron_right

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Leggy Growthchevron_right

Care Guide

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Light

Full sun to light shade (4–8 hours sun daily). Blooms best with ample sunlight; shade slightly reduces flowering in hot climates.

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Water

Water moderately; keep soil evenly moist but not waterlogged. Drought-tolerant once established. Reduce watering in cool months.

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Soil

Well-draining soil; tolerates poor to average fertility. pH 6.0–7.5. Sandy or loamy soils preferred.

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Fertiliser

Light feeding with balanced fertilizer every 4–6 weeks during growing season. Avoid high-nitrogen fertilizers.

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Temperature

Cool-season annual; prefers 60–75°F (15–24°C). Struggles in prolonged heat above 80°F (27°C); may stop flowering.

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Humidity

Moderate humidity preferred. Good air circulation helps prevent fungal issues.

Toxicity

check_circleSafe for Catscheck_circleSafe for Dogscheck_circleSafe for Children

Alyssum is completely non-toxic to cats, dogs, and children.

Common Diseases

filter_dramaRoot Rotchevron_right spaPowdery Mildewchevron_right grainLeaf Spotchevron_right

Common Pests

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Seasonal Care

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Resume regular watering and feeding as growth picks up.

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Peak growing season. Water and feed regularly.

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Reduce watering as growth slows. Stop heavy feeding.

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Minimal watering and feeding. Protect from frost if needed.

Frequently Asked Questions

Why does my Alyssum stop flowering in summer heat?

It's a cool-season annual that struggles in prolonged heat above 80°F and may stop flowering — it typically performs best in spring and fall or in cooler climates.

Why does my Alyssum smell so sweet?

Its tiny clusters of white, pink, or purple flowers are naturally fragrant, which along with its prolific blooming is exactly what makes it popular for borders and containers.