Plant Rashes in Babies: Grevillea, Nettle & More | Parenting Hub
Grevillea, stinging nettle and other Australian plants can cause itchy rashes on baby skin. Here's how to wash, soothe and prevent.
Crawling babies meet plants face-first. Grevillea, stinging nettle, euphorbia and a handful of common Aussie garden plants can cause an itchy red rash — usually short-lived and easy to manage at home.
Common culprits
- Grevillea — hairs and sap can cause an immediate itchy rash.
- Stinging nettle — instant burning bumps that fade within hours.
- Euphorbia (milky sap) — irritant; avoid eyes especially.
- Rhus tree (uncommon now but still found in older Australian gardens) — can cause severe delayed rash.
- Tomato, pumpkin, fig leaves — hairs can irritate sensitive baby skin.
First aid
- Rinse the area thoroughly with cool running water for 10 minutes.
- Wash with mild soap if sap is involved — change baby's clothes.
- Cool compress for itch.
- Plain emollient or 1% hydrocortisone (over 6 months, GP-approved) for short bursts if very itchy.
Prevention
Walk your garden at baby height — remove or fence off irritant plants. Long sleeves and pants for crawling on grass. Wash hands and face after any garden play.
When to seek help
- Swelling of face, lips or trouble breathing (call 000)
- Rash spreading widely over 24–48 hours (possible delayed reaction — see GP)
- Sap in the eyes — flush and call your GP or ED
- Blistering or weeping skin
Common questions
Should I use an antihistamine?
Oral antihistamines aren't routinely recommended for babies under 2. See your GP if itch is severe.
How long does it last?
Most plant contact rashes settle within 24–48 hours. Rhus reactions can take 1–2 weeks.