CzerwonkaStudios
Swedish ivy
Photo: W.carter, CC0, via Wikimedia Commons

Houseplants

Swedish ivy

Plectranthus verticillatus (usually sold as P. australis; NC State files the white-edged Swedish ivy under P. parviflorus) · Mint family (Lamiaceae)

At a glance
Hardiness zones10 to 11
Sunpart shade
Watermoderate
Life cycleperennial
FrostTender: killed by frost

About Swedish ivy

Swedish ivy is not an ivy at all but a trailing member of the mint family with round, scalloped, glossy leaves, a classic for hanging baskets and an easy plant to root and share (UF/IFAS, NC State). It likes bright light without hot sun and puts out spikes of small white or pale purple flowers now and then through the year. It is also one of the first houseplants mealybugs find, so check it often.

NC State gives zones 10-11 for the closely related white-edged Swedish ivy, and UF/IFAS says it takes only brief dips to 40 F; it is grown indoors everywhere and can summer outdoors in shade once nights stay above about 55 F (UF/IFAS Nassau County).

When to plant

Timing is counted from your average last spring frost (and first fall frost). Sow & Tell works out the actual dates for your ZIP code.

Usually bought as a hanging basket or started from a stem tip cutting, which roots in about a month (UF/IFAS).

Growing it indoors

Soil

Any good, well-drained potting mix (UF/IFAS).

Pot in any good, well-drained potting mix in a hanging basket or pot with drainage (UF/IFAS).

Feeding

Too much nitrogen keeps it from blooming, and overwatering rots the roots (UF/IFAS).

Varieties (2)

UF/IFAS and NC State name 1 cultivar and 1 related species sold under the same common name.

VarietyType DaysNotes
White-edged Swedish ivy (Plectranthus parviflorus)Related speciesAn Australian and Pacific relative, 2-3 ft tall and 2-4 ft wide in the ground, with fleshy leaves and pale mauve to white flower spikes; frost tender.
VariegataWhite-edgedLeaves marked with white along the edges.

Pests to watch for

Mealybugs, Twospotted spider mite, Whiteflies, Aphids

Diseases and problems

Root and crown rot, Leaf spots, Stem rot

In the kitchen

Safety: Not listed as poisonous to people or pets in the sources we opened (ASPCA; NC State tags the white-edged form non-toxic); the leaves give off a strong smell when crushed.

Pets: Non-toxic to dogs, cats and horses (ASPCA, listed as Swedish ivy, Plectranthus australis).

Sources

Photo: Photo: W.carter, CC0, via Wikimedia Commons (CC0). Photo resized for the web.

Planting dates and advice are general guidance; check with your local Cooperative Extension office for your area.