Troubleshooting
Night-scented stock problems — and how to fix them
Night-scented stock (Matthiola longipetala) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Overwatering and root rot
The most common problem in containers and poorly drained beds. Plants collapse suddenly at the stem base. Ensure sharply drained soil, water only when the surface is dry, and never allow pots to sit in water.
Flea beetle damage
Tiny round holes in leaves caused by flea beetles (Phyllotreta spp.), common on Brassicaceae. Damage is typically cosmetic on mature plants. Protect seedlings with fine insect-proof mesh (fleece); adult plants usually grow away from minor damage.
Poor or no fragrance
Flowers only release full fragrance from early evening onward — this is normal behaviour. If fragrance is weak, ensure plants receive sufficient sun and are not overcrowded. Heat above 25°C (77°F) can shorten flower life and reduce scent intensity.
Prevent night-scented stock problems before they start
Most night-scented stock issues are care-mismatch, not bad luck. Dial in the basics:
Looking for night-scented stock in general rather than its problems? Read the full night-scented stock care guide — light, water, soil and feeding.
Night-scented stock problems — FAQ
Why is my night-scented stock overwatering and root rot?
The most common problem in containers and poorly drained beds. Plants collapse suddenly at the stem base. Ensure sharply drained soil, water only when the surface is dry, and never allow pots to sit in water.
Why is my night-scented stock flea beetle damage?
Tiny round holes in leaves caused by flea beetles (Phyllotreta spp.), common on Brassicaceae. Damage is typically cosmetic on mature plants. Protect seedlings with fine insect-proof mesh (fleece); adult plants usually grow away from minor damage.
Why is my night-scented stock poor or no fragrance?
Flowers only release full fragrance from early evening onward — this is normal behaviour. If fragrance is weak, ensure plants receive sufficient sun and are not overcrowded. Heat above 25°C (77°F) can shorten flower life and reduce scent intensity.